Ruben Gideon Koellner
Country
GER
Birth Year
2004
Gender
M
Title
International Master
FIDE ID
12993093
FIDE Rating
2515
FIDE Rating Graph
Games
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2026-01-11 | Bundesliga 2025-26 | Deggendorf GER | 12.2 | Alvar Alonso Rosell | Ruben Gideon Koellner | 1-0 | 34 | Open |
| 2 | 2026-01-10 | Bundesliga 2025-26 | Deggendorf GER | 11.1 | Ruben Gideon Koellner | Dalibor Stojanovic | 1/2-1/2 | 46 | Open |
| 3 | 2025-12-30 | IM-Turnier im Atomis 2025 | Oberding GER | 7.5 | Ruben Gideon Koellner | Darshan G | 1-0 | 18 | Open |
| 4 | 2025-12-29 | IM-Turnier im Atomis 2025 | Oberding GER | 6.1 | Lukas Stoettner | Ruben Gideon Koellner | 1-0 | 33 | Open |
| 5 | 2025-12-28 | IM-Turnier im Atomis 2025 | Oberding GER | 5.5 | Hemanth Raam | Ruben Gideon Koellner | 0-1 | 45 | Open |
| 6 | 2025-12-28 | IM-Turnier im Atomis 2025 | Oberding GER | 4.2 | Ruben Gideon Koellner | Elias Wunderlich | 1-0 | 44 | Open |
| 7 | 2025-12-27 | IM-Turnier im Atomis 2025 | Oberding GER | 3.4 | Richard Walter | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 8 | 2025-12-27 | IM-Turnier im Atomis 2025 | Oberding GER | 2.3 | Ruben Gideon Koellner | Robert Zysk | 1-0 | 65 | Open |
| 9 | 2025-12-26 | IM-Turnier im Atomis 2025 | Oberding GER | 1.3 | Petro Logvinov | Ruben Gideon Koellner | 1/2-1/2 | 23 | Open |
| 10 | 2025-11-16 | Rainer Radtke Mem Rapid | Berlin GER | 9.12 | Ruben Gideon Koellner | Timo Kueppers | 0-1 | 80 | Open |
| 11 | 2025-11-16 | Rainer Radtke Mem Rapid | Berlin GER | 10.9 | Marcel Petersen | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 12 | 2025-11-15 | Rainer Radtke Mem Rapid | Berlin GER | 7.1 | Ruben Gideon Koellner | Magnus Ermitsch | 0-1 | 55 | Open |
| 13 | 2025-11-15 | Rainer Radtke Mem Rapid | Berlin GER | 6.3 | Roven Vogel | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 14 | 2025-11-15 | Rainer Radtke Mem Rapid | Berlin GER | 5.1 | Ruben Gideon Koellner | Jonas Eilenberg | 1-0 | 50 | Open |
| 15 | 2025-11-15 | Rainer Radtke Mem Rapid | Berlin GER | 4.12 | Simon Degenhard | Ruben Gideon Koellner | 0-1 | 77 | Open |
| 16 | 2025-11-15 | Rainer Radtke Mem Rapid | Berlin GER | 3.13 | Ruben Gideon Koellner | Benjamin Wagner | 1/2-1/2 | 44 | Open |
| 17 | 2025-11-15 | Rainer Radtke Mem Rapid | Berlin GER | 2.12 | Momme Fredrik Held | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 18 | 2025-11-15 | Rainer Radtke Mem Rapid | Berlin GER | 1.13 | Ruben Gideon Koellner | Alina Damrich | 1-0 | 34 | Open |
| 19 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 4 | Sharath Radhakrishnan | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 20 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 3 | Ruben Gideon Koellner | Mikkel Vinh Loftgaard | 1/2-1/2 | 71 | Open |
| 21 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 2 | Artemii Khanbutaev | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 22 | 2025-08-13 | TCh-TUR Super League 2025 | Ankara TUR | 12.31 | Dmitry Andreikin | Ruben Gideon Koellner | 1/2-1/2 | 63 | Open |
| 23 | 2025-08-12 | Titled Tue 12th Aug Late | chess.com INT | 3 | Ruben Gideon Koellner | Luca Silva | 0-1 | 42 | Open |
| 24 | 2025-08-12 | Titled Tue 12th Aug Late | chess.com INT | 2 | Alexei Belov | Ruben Gideon Koellner | 1/2-1/2 | 49 | Open |
| 25 | 2025-08-12 | Titled Tue 12th Aug Late | chess.com INT | 1 | Ruben Gideon Koellner | Tomasz Mika | 1-0 | 22 | Open |
| 26 | 2025-08-11 | TCh-TUR Super League 2025 | Ankara TUR | 9.13 | Ruben Gideon Koellner | Nodirbek Yakubboev | 1/2-1/2 | 34 | Open |
| 27 | 2025-08-11 | TCh-TUR Super League 2025 | Ankara TUR | 10.31 | Bryce Tiglon | Ruben Gideon Koellner | 1/2-1/2 | 66 | Open |
| 28 | 2025-08-10 | TCh-TUR Super League 2025 | Ankara TUR | 8.25 | Nijat Abasov | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 29 | 2025-08-09 | TCh-TUR Super League 2025 | Ankara TUR | 7.19 | Ruben Gideon Koellner | Momchil Petkov | 1/2-1/2 | 59 | Open |
| 30 | 2025-08-08 | TCh-TUR Super League 2025 | Ankara TUR | 6.19 | Ivan Saric | Ruben Gideon Koellner | 1/2-1/2 | 38 | Open |
| 31 | 2025-08-07 | TCh-TUR Super League 2025 | Ankara TUR | 5.25 | Ruben Gideon Koellner | Volodar Murzin | 1/2-1/2 | 31 | Open |
| 32 | 2025-08-07 | TCh-TUR Super League 2025 | Ankara TUR | 4.13 | Rauf Mamedov | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 33 | 2025-08-06 | TCh-TUR Super League 2025 | Ankara TUR | 3.31 | Ruben Gideon Koellner | Evgeny Romanov | 1/2-1/2 | 42 | Open |
| 34 | 2025-08-05 | TCh-TUR Super League 2025 | Ankara TUR | 2.7 | Sankalp Gupta | Ruben Gideon Koellner | 1-0 | 63 | Open |
| 35 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 3 | William Graif | Ruben Gideon Koellner | 1-0 | 19 | Open |
| 36 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 2 | Ruben Gideon Koellner | Alexei Gubajdullin | 1-0 | 57 | Open |
| 37 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 1 | Gedeon Hartge | Ruben Gideon Koellner | 0-1 | 63 | Open |
| 38 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 4 | Ruben Gideon Koellner | Martin Oksendal | 0-1 | 50 | Open |
| 39 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 3 | V Pranav | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 40 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 2 | Anjaneya Sripathy Rao | Ruben Gideon Koellner | 0-1 | 50 | Open |
| 41 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 1 | Ruben Gideon Koellner | Elameir Fathy | 1-0 | 29 | Open |
| 42 | 2025-06-15 | Zupanja Celebrates GM2 | Zupanja CRO | 8.3 | Nikola Sedlak | Ruben Gideon Koellner | 1/2-1/2 | 16 | Open |
| 43 | 2025-06-14 | Zupanja Celebrates GM2 | Zupanja CRO | 7.4 | Ruben Gideon Koellner | Dragan Kosic | 1-0 | 67 | Open |
| 44 | 2025-06-14 | Zupanja Celebrates GM2 | Zupanja CRO | 6.2 | Nenad Panic | Ruben Gideon Koellner | 1/2-1/2 | 43 | Open |
| 45 | 2025-06-13 | Zupanja Celebrates GM2 | Zupanja CRO | 5.5 | Ruben Gideon Koellner | Harikrishnan.A.Ra | 1-0 | 59 | Open |
| 46 | 2025-06-12 | Zupanja Celebrates GM2 | Zupanja CRO | 4.1 | Aarav Dengla | Ruben Gideon Koellner | 1/2-1/2 | 58 | Open |
| 47 | 2025-06-12 | Zupanja Celebrates GM2 | Zupanja CRO | 3.5 | Aleksander Delchev | Ruben Gideon Koellner | 1/2-1/2 | 37 | Open |
| 48 | 2025-06-11 | Zupanja Celebrates GM2 | Zupanja CRO | 2.2 | Ruben Gideon Koellner | Petar Kovac | 1/2-1/2 | 39 | Open |
| 49 | 2025-06-10 | Zupanja Celebrates GM2 | Zupanja CRO | 1.4 | Adelard Bai | Ruben Gideon Koellner | 1/2-1/2 | 36 | Open |
| 50 | 2025-06-01 | TCh-AUT Rapid 2025 | Pasching AUT | 8.17 | Georg Halvax | Ruben Gideon Koellner | 1/2-1/2 | 100 | Open |
| 51 | 2025-06-01 | TCh-AUT Rapid 2025 | Pasching AUT | 7.9 | Ruben Gideon Koellner | Viktor Erdos | 0-1 | 44 | Open |
| 52 | 2025-06-01 | TCh-AUT Rapid 2025 | Pasching AUT | 6.17 | Teodora Injac | Ruben Gideon Koellner | 0-1 | 50 | Open |
| 53 | 2025-06-01 | TCh-AUT Rapid 2025 | Pasching AUT | 3.5 | Ruben Gideon Koellner | Jaime Santos Latasa | 0-1 | 10 | Open |
| 54 | 2025-05-31 | TCh-AUT Blitz 2025 | Pasching AUT | 8.15 | Felix Blohberger | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 55 | 2025-05-31 | TCh-AUT Blitz 2025 | Pasching AUT | 3.11 | Eduardo Iturrizaga Bonelli | Ruben Gideon Koellner | 1/2-1/2 | 55 | Open |
| 56 | 2025-05-31 | TCh-AUT Blitz 2025 | Pasching AUT | 13.3 | Maxim Rodshtein | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 57 | 2025-05-31 | TCh-AUT Blitz 2025 | Pasching AUT | 11.19 | Ruben Gideon Koellner | Viktor Erdos | 1/2-1/2 | 41 | Open |
| 58 | 2025-05-30 | Grand Prix PlusCity Rapid | Pasching AUT | 8.13 | Pawel Teclaf | Ruben Gideon Koellner | 1-0 | 54 | Open |
| 59 | 2025-05-30 | Grand Prix PlusCity Rapid | Pasching AUT | 7.4 | Alexey Sarana | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 60 | 2025-05-30 | Grand Prix PlusCity Rapid | Pasching AUT | 6.7 | Ruben Gideon Koellner | Maxim Rodshtein | 1-0 | 44 | Open |
| 61 | 2025-05-30 | Grand Prix PlusCity Rapid | Pasching AUT | 5.4 | Ruben Gideon Koellner | Aleksandr Shimanov | 1/2-1/2 | 46 | Open |
| 62 | 2025-05-30 | Grand Prix PlusCity Rapid | Pasching AUT | 4.12 | Eric Hansen | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 63 | 2025-05-29 | Grand Prix PlusCity Blitz | Pasching AUT | 8.13 | Georg Meier | Ruben Gideon Koellner | 1-0 | 40 | Open |
| 64 | 2025-05-29 | Grand Prix PlusCity Blitz | Pasching AUT | 6.17 | Ruben Gideon Koellner | Zdenko Kozul | 1/2-1/2 | 110 | Open |
| 65 | 2025-05-29 | Grand Prix PlusCity Blitz | Pasching AUT | 4.15 | Ruben Gideon Koellner | Nikita Petrov | 0-1 | 30 | Open |
| 66 | 2025-05-29 | Grand Prix PlusCity Blitz | Pasching AUT | 3.15 | Nigel D Short | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 67 | 2025-05-27 | Titled Tue 27th May Late | chess.com INT | 1 | Ruben Gideon Koellner | Nayak Rajesh | 1-0 | 28 | Open |
| 68 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 9 | David W L Howell | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 69 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 8 | Ruben Gideon Koellner | Tudor-Gabriel Danila | 1-0 | 44 | Open |
| 70 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 7 | Artem Gogolev | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 71 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 6 | Ilhan Serhat Salman | Ruben Gideon Koellner | 1/2-1/2 | 77 | Open |
| 72 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 5 | Ruben Gideon Koellner | Ivan Yeletsky | 0-1 | 37 | Open |
| 73 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 4 | Timur Kocharin | Ruben Gideon Koellner | 0-1 | 25 | Open |
| 74 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 3 | Ruben Gideon Koellner | Jules Moussard | 0-1 | 68 | Open |
| 75 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 2 | Ruben Gideon Koellner | Eduardo Cesar Da Matta | 1-0 | 51 | Open |
| 76 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 1 | Hui Li | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 77 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 10 | Ruben Gideon Koellner | Mert Ceyhan | 0-1 | 56 | Open |
| 78 | 2025-04-27 | Bundesliga 2024-25 | Deggendorf GER | 15.1 | Aleksandar Kovacevic | Ruben Gideon Koellner | 1/2-1/2 | 15 | Open |
| 79 | 2025-04-26 | Bundesliga 2024-25 | Deggendorf GER | 14.2 | Ruben Gideon Koellner | Theo Gungl | 1-0 | 31 | Open |
| 80 | 2025-04-25 | Bundesliga 2024-25 | Deggendorf GER | 13.4 | Timur Kocharin | Ruben Gideon Koellner | 1/2-1/2 | 122 | Open |
| 81 | 2025-04-06 | TCh-AUT 2024-25 | Austria AUT | 11.18 | Ruben Gideon Koellner | Lukas Dotzer | 1/2-1/2 | 96 | Open |
| 82 | 2025-04-05 | TCh-AUT 2024-25 | Austria AUT | 10.3 | Peter Balint | Ruben Gideon Koellner | 0-1 | 60 | Open |
| 83 | 2025-04-04 | TCh-AUT 2024-25 | Austria AUT | 9.12 | Ruben Gideon Koellner | Etienne Bacrot | 1/2-1/2 | 30 | Open |
| 84 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 9 | Alexey Sarana | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 85 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 8 | Ruben Gideon Koellner | Stanley Badacsonyi | 1-0 | 39 | Open |
| 86 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 7 | Artin Ashraf | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 87 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 6 | Richard Alejandro Rueda Rojas | Ruben Gideon Koellner | 0-1 | 56 | Open |
| 88 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 5 | Ruben Gideon Koellner | Amir Hadzovic | 1-0 | 78 | Open |
| 89 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 4 | Ruben Gideon Koellner | Andy Woodward | 0-1 | 50 | Open |
| 90 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 3 | Oleksii Karvatskyi | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 91 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 2 | Ruben Gideon Koellner | Enrique Fernando Asensio Ramos | 1-0 | 48 | Open |
| 92 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 1 | Michal Redzisz | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 93 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 11 | Ruben Gideon Koellner | Erigaisi Arjun | 0-1 | 49 | Open |
| 94 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 10 | Ruben Gideon Koellner | Kevin George | 1-0 | 100 | Open |
| 95 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 9 | Krzysztof Budrewicz | Ruben Gideon Koellner | 0-1 | 45 | Open |
| 96 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 8 | Ruben Gideon Koellner | Randi-Ioan Gales | 1-0 | 20 | Open |
| 97 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 7 | Mathieu Ternault | Ruben Gideon Koellner | 1-0 | 70 | Open |
| 98 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 6 | Ruben Gideon Koellner | A.R. Saleh Salem | 0-1 | 80 | Open |
| 99 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 5 | Ruben Gideon Koellner | Sergey Slugin | 1-0 | 41 | Open |
| 100 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 4 | Andrey Esipenko | Ruben Gideon Koellner | 1-0 | 82 | Open |
| 101 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 3 | Reinis Paikens | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 102 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 2 | Ruben Gideon Koellner | Uliana Dudkina | 1-0 | 55 | Open |
| 103 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 1 | Sargis Sargissyan | Ruben Gideon Koellner | 0-1 | 66 | Open |
| 104 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 11 | Ruben Gideon Koellner | Bogdan-Daniel Deac | 1-0 | 70 | Open |
| 105 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 10 | Ruben Gideon Koellner | Mohamed Ezat | 1-0 | 1 | Open |
| 106 | 2025-01-21 | Titled Tue 21st Jan Early | chess.com INT | 1 | Pablo Alexander Ruiz Aguilar | Ruben Gideon Koellner | 0-1 | 83 | Open |
| 107 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 9 | Ruben Gideon Koellner | Raset Ziatdinov | 0-1 | 81 | Open |
| 108 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 8 | Jeevan Karamsetty | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 109 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 7 | Ruben Gideon Koellner | Yi Wei | 0-1 | 54 | Open |
| 110 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 6 | Ruben Gideon Koellner | Alejandro Domingo Nunez | 1-0 | 14 | Open |
| 111 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 5 | Robert Tustanowski | Ruben Gideon Koellner | 1/2-1/2 | 50 | Open |
| 112 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 4 | Ruben Gideon Koellner | Viacheslav Tikhonov | 1-0 | 45 | Open |
| 113 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 3 | Alexey Sarana | Ruben Gideon Koellner | 1-0 | 63 | Open |
| 114 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 2 | Sultanbeibarys Dumanuly | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 115 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 1 | Ruben Gideon Koellner | Joshua Xia | 1-0 | 47 | Open |
| 116 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 1 | Ruben Gideon Koellner | Jann-Christian Tiarks | 1/2-1/2 | 81 | Open |
| 117 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 11 | Ruben Gideon Koellner | Dashgyn Ibadov | 1/2-1/2 | 53 | Open |
| 118 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 10 | Jerzy Slaby | Ruben Gideon Koellner | 1/2-1/2 | 76 | Open |
| 119 | 2024-11-24 | Heusenstamm Schloss Open | Heusenstamm GER | 7.4 | Ruben Gideon Koellner | Kevin Haack | 1/2-1/2 | 40 | Open |
| 120 | 2024-11-24 | Heusenstamm Schloss Open | Heusenstamm GER | 6.5 | Cedric Chassard | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 121 | 2024-11-23 | Heusenstamm Schloss Open | Heusenstamm GER | 5.3 | Ruben Gideon Koellner | Marian Can Nothnagel | 1/2-1/2 | 29 | Open |
| 122 | 2024-11-23 | Heusenstamm Schloss Open | Heusenstamm GER | 4.8 | Jonas Rempe | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 123 | 2024-11-22 | Heusenstamm Schloss Open | Heusenstamm GER | 3.5 | Ruben Gideon Koellner | Uwe Kersten | 1/2-1/2 | 30 | Open |
| 124 | 2024-11-22 | Heusenstamm Schloss Open | Heusenstamm GER | 2.5 | Paul Stuemer | Ruben Gideon Koellner | 0-1 | 23 | Open |
| 125 | 2024-11-21 | Heusenstamm Schloss Open | Heusenstamm GER | 1.5 | Ruben Gideon Koellner | Platon Musiienko | 1-0 | 35 | Open |
| 126 | 2024-10-27 | Rainer Radtke Mem 2024 | Berlin GER | 9.3 | Ruben Gideon Koellner | Martin Petrov | 1/2-1/2 | 23 | Open |
| 127 | 2024-10-26 | Rainer Radtke Mem 2024 | Berlin GER | 8.2 | Szymon Gumularz | Ruben Gideon Koellner | 1/2-1/2 | 25 | Open |
| 128 | 2024-10-25 | Rainer Radtke Mem 2024 | Berlin GER | 7.4 | Ruben Gideon Koellner | Adar Tarhan | 1-0 | 59 | Open |
| 129 | 2024-10-24 | Rainer Radtke Mem 2024 | Berlin GER | 6.8 | Pijus Stremavicius | Ruben Gideon Koellner | 0-1 | 72 | Open |
| 130 | 2024-10-24 | Rainer Radtke Mem 2024 | Berlin GER | 5.12 | Ruben Gideon Koellner | Daniel Prazak | 1-0 | 41 | Open |
| 131 | 2024-10-23 | Rainer Radtke Mem 2024 | Berlin GER | 4.21 | Christian Polster | Ruben Gideon Koellner | 0-1 | 34 | Open |
| 132 | 2024-10-22 | Rainer Radtke Mem 2024 | Berlin GER | 3.19 | Ruben Gideon Koellner | Uri Shefer | 1/2-1/2 | 75 | Open |
| 133 | 2024-10-21 | Rainer Radtke Mem 2024 | Berlin GER | 1.8 | Ruben Gideon Koellner | Bao Anh Le Bui | 0-1 | 28 | Open |
| 134 | 2024-10-13 | TCh-AUT 2024-25 | Austria AUT | 5.3 | Ruben Gideon Koellner | Viktor Erdos | 1/2-1/2 | 39 | Open |
| 135 | 2024-10-12 | TCh-AUT 2024-25 | Austria AUT | 4.3 | Jonas Hacker | Ruben Gideon Koellner | 1/2-1/2 | 31 | Open |
| 136 | 2024-10-11 | TCh-AUT 2024-25 | Austria AUT | 3.3 | Ruben Gideon Koellner | Ihor Samunenkov | 1/2-1/2 | 47 | Open |
| 137 | 2024-10-10 | TCh-AUT 2024-25 | Austria AUT | 2.3 | Alexander Naumann | Ruben Gideon Koellner | 1/2-1/2 | 31 | Open |
| 138 | 2024-10-09 | TCh-AUT 2024-25 | Austria AUT | 1.3 | Ruben Gideon Koellner | Richard Stalmach | 0-1 | 44 | Open |
| 139 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 9 | Yi Xu | Ruben Gideon Koellner | 1/2-1/2 | 37 | Open |
| 140 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 8 | Ruslan Gabdushev | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 141 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 7 | Ruben Gideon Koellner | Artyom Bogdanov | 1-0 | 26 | Open |
| 142 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 6 | Robert Aloma Vidal | Ruben Gideon Koellner | 0-1 | 84 | Open |
| 143 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 5 | Pranav Anand | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 144 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 4 | Ruben Gideon Koellner | Jeffery Xiong | 1/2-1/2 | 54 | Open |
| 145 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 3 | Ruben Gideon Koellner | Jose Antonio Garrido Diaz | 1-0 | 43 | Open |
| 146 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 2 | Vitaly Teterev | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 147 | 2024-10-08 | Titled Tue 8th Oct Late | chess.com INT | 1 | Ruben Gideon Koellner | Jesus Alberto Molina Sumoza | 1/2-1/2 | 57 | Open |
| 148 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 1 | Ruben Gideon Koellner | Mikelis Vingris | 1-0 | 72 | Open |
| 149 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 11 | Barad Yeganegi | Ruben Gideon Koellner | 0-1 | 79 | Open |
| 150 | 2024-10-08 | Titled Tue 8th Oct Early | chess.com INT | 10 | Ruben Gideon Koellner | Fabiano Caruana | 0-1 | 55 | Open |
| 151 | 2024-10-06 | Bundesliga 2024-25 | Munich GER | 2.7 | Ruben Gideon Koellner | Makan Rafiee | 1-0 | 29 | Open |
| 152 | 2024-10-05 | Bundesliga 2024-25 | Munich GER | 1.8 | Dominic Wisnet | Ruben Gideon Koellner | 0-1 | 74 | Open |
| 153 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 9 | Blazej Grot | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 154 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 9 | Ruben Gideon Koellner | Sergey Grigoriants | 1/2-1/2 | 41 | Open |
| 155 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 8 | Havard Haug | Ruben Gideon Koellner | 0-1 | 45 | Open |
| 156 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 8 | Ruben Gideon Koellner | Nebojsa M Ristic | 1-0 | 36 | Open |
| 157 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 7 | Harsha Bharathakoti | Ruben Gideon Koellner | 1-0 | 58 | Open |
| 158 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 7 | Aleksander Kumala | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 159 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 6 | Ruben Gideon Koellner | Kayden Troff | 1-0 | 27 | Open |
| 160 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 6 | Ruben Gideon Koellner | Matthew Herman | 0-1 | 53 | Open |
| 161 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 5 | Ruben Gideon Koellner | Levente Miszler | 0-1 | 54 | Open |
| 162 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 5 | Ruben Gideon Koellner | Rudik Makarian | 1-0 | 34 | Open |
| 163 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 4 | Daniel Naroditsky | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 164 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 4 | Ali Elier | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 165 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 3 | Ruben Gideon Koellner | Alexey Sarana | 1-0 | 25 | Open |
| 166 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 3 | Ruben Gideon Koellner | Adam Zielonka | 1-0 | 53 | Open |
| 167 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 2 | Kevin Pan | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 168 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 2 | Ruben Gideon Koellner | Daniel Ser | 1-0 | 31 | Open |
| 169 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 1 | Yotam Shohat | Ruben Gideon Koellner | 0-1 | 60 | Open |
| 170 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 1 | Ruben Gideon Koellner | Qi Pang | 0-1 | 74 | Open |
| 171 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 11 | Ruben Gideon Koellner | Edgar Mamedov | 0-1 | 43 | Open |
| 172 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 11 | Ruben Gideon Koellner | Reza Mahdavi | 0-1 | 33 | Open |
| 173 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 10 | Jaime Santos Latasa | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 174 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 10 | Michal Mazurkiewicz | Ruben Gideon Koellner | 0-1 | 45 | Open |
| 175 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 9 | Ruben Gideon Koellner | S.P. Sethuraman | 1-0 | 36 | Open |
| 176 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 8 | Pavel Smirnov | Ruben Gideon Koellner | 1-0 | 63 | Open |
| 177 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 7 | Ruben Gideon Koellner | Vladimir Malakhov | 1/2-1/2 | 71 | Open |
| 178 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 6 | Leinier Dominguez Perez | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 179 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 5 | Ruben Gideon Koellner | Maksim Chigaev | 1/2-1/2 | 49 | Open |
| 180 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 4 | Benjamin Gledura | Ruben Gideon Koellner | 1-0 | 50 | Open |
| 181 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 3 | Jakhongir Vakhidov | Ruben Gideon Koellner | 0-1 | 63 | Open |
| 182 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 2 | Ruben Gideon Koellner | Grigoriy Oparin | 0-1 | 35 | Open |
| 183 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 1 | Ruben Gideon Koellner | Ngoc Truong Son Nguyen | 1-0 | 77 | Open |
| 184 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 7 | German Spata | Ruben Gideon Koellner | 1-0 | 76 | Open |
| 185 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 6 | Ruben Gideon Koellner | Olexandr Bortnyk | 0-1 | 30 | Open |
| 186 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 5 | Cristi Machidon | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 187 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 4 | David Paravyan | Ruben Gideon Koellner | 1-0 | 28 | Open |
| 188 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 3 | Ruben Gideon Koellner | Rasmus Svane | 1/2-1/2 | 62 | Open |
| 189 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 2 | Ali Elier | Ruben Gideon Koellner | 0-1 | 79 | Open |
| 190 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 1 | Ruben Gideon Koellner | Luis Fernandez Siles | 1-0 | 56 | Open |
| 191 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 8 | Samuel Fieberg | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 192 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 7 | Casper Liu | Ruben Gideon Koellner | 1/2-1/2 | 46 | Open |
| 193 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 6 | Ruben Gideon Koellner | Yasel Borges Ferias | 0-1 | 40 | Open |
| 194 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 5 | Mark Plotkin | Ruben Gideon Koellner | 0-1 | 54 | Open |
| 195 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 4 | Mohamed Ezat | Ruben Gideon Koellner | 0-1 | 0 | Open |
| 196 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 3 | Ruben Gideon Koellner | Artin Ashraf | 0-1 | 55 | Open |
| 197 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 2 | Ruben Gideon Koellner | Volodymyr Vusatiuk | 1-0 | 33 | Open |
| 198 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 1 | Jacorey Bynum | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 199 | 2024-09-08 | 6th Bamberg Open 2024 | Bamberg GER | 7.3 | Yelyzaveta Hrebenshchykova | Ruben Gideon Koellner | 1/2-1/2 | 22 | Open |
| 200 | 2024-09-07 | 6th Bamberg Open 2024 | Bamberg GER | 6.3 | Ruben Gideon Koellner | Edwin Fischer | 1-0 | 38 | Open |
| 201 | 2024-09-07 | 6th Bamberg Open 2024 | Bamberg GER | 5.1 | Yevhenii Yelisieiev | Ruben Gideon Koellner | 1-0 | 13 | Open |
| 202 | 2024-09-06 | 6th Bamberg Open 2024 | Bamberg GER | 4.1 | Ruben Gideon Koellner | Cedric Chassard | 1-0 | 22 | Open |
| 203 | 2024-09-05 | 6th Bamberg Open 2024 | Bamberg GER | 3.1 | Johannes Feldmann | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 204 | 2024-09-05 | 6th Bamberg Open 2024 | Bamberg GER | 2.1 | Ruben Gideon Koellner | Fabian Meulner | 1-0 | 24 | Open |
| 205 | 2024-09-04 | 6th Bamberg Open 2024 | Bamberg GER | 1.1 | Christian Strahl | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 206 | 2024-08-27 | Titled Tue 27th Aug Late | chess.com INT | 2 | Deepak Aaron | Ruben Gideon Koellner | 1-0 | 22 | Open |
| 207 | 2024-08-27 | Titled Tue 27th Aug Late | chess.com INT | 1 | Ruben Gideon Koellner | Roberto Al Avila Bautista | 1-0 | 55 | Open |
| 208 | 2024-08-20 | Titled Tue 20th Aug Early | chess.com INT | 4 | Daniel Gutierrez Olivares | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 209 | 2024-08-20 | Titled Tue 20th Aug Early | chess.com INT | 3 | Ruben Gideon Koellner | Nikolay Pavlov | 1-0 | 39 | Open |
| 210 | 2024-08-20 | Titled Tue 20th Aug Early | chess.com INT | 2 | Logan C Shafer | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 211 | 2024-08-20 | Titled Tue 20th Aug Early | chess.com INT | 1 | Ruben Gideon Koellner | Viacheslav Slovineanu | 0-1 | 31 | Open |
| 212 | 2024-08-11 | 17th Arad Open 2024 | Arad ROU | 9.22 | Ruben Gideon Koellner | Tamas Gunes Ongut | 0-1 | 60 | Open |
| 213 | 2024-08-10 | 17th Arad Open 2024 | Arad ROU | 8.17 | Armand Veress | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 214 | 2024-08-09 | 17th Arad Open 2024 | Arad ROU | 7.4 | Max Warmerdam | Ruben Gideon Koellner | 1/2-1/2 | 69 | Open |
| 215 | 2024-08-08 | 17th Arad Open 2024 | Arad ROU | 6.9 | Ruben Gideon Koellner | Constantin Lupulescu | 1/2-1/2 | 30 | Open |
| 216 | 2024-08-08 | 17th Arad Open 2024 | Arad ROU | 5.19 | Ruben Gideon Koellner | Viktoria Radeva | 1-0 | 59 | Open |
| 217 | 2024-08-07 | 17th Arad Open 2024 | Arad ROU | 4.7 | Pouya Idani | Ruben Gideon Koellner | 1/2-1/2 | 55 | Open |
| 218 | 2024-08-06 | 17th Arad Open 2024 | Arad ROU | 3.26 | Ruben Gideon Koellner | Mihai-Edward Padurariu | 1-0 | 33 | Open |
| 219 | 2024-08-06 | 17th Arad Open 2024 | Arad ROU | 2.16 | Andrei Negrean | Ruben Gideon Koellner | 1/2-1/2 | 55 | Open |
| 220 | 2024-08-05 | 17th Arad Open 2024 | Arad ROU | 1.23 | Ruben Gideon Koellner | Tudor-Gabriel Danila | 1-0 | 35 | Open |
| 221 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 9.34 | Ruben Gideon Koellner | Iustin Toma | 1-0 | 43 | Open |
| 222 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 8.22 | Ruben Gideon Koellner | Lucian-Ioan Filip | 0-1 | 69 | Open |
| 223 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 7.5 | Bogdan-Daniel Deac | Ruben Gideon Koellner | 1-0 | 58 | Open |
| 224 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 6.4 | Ruben Gideon Koellner | Alexander Motylev | 1/2-1/2 | 24 | Open |
| 225 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 5.5 | Bojan Maksimovic | Ruben Gideon Koellner | 1/2-1/2 | 62 | Open |
| 226 | 2024-08-03 | Cristina Foisor Mem Rapid | Timisoara ROU | 4.16 | Ruben Gideon Koellner | Sebastian Poltorak | 1-0 | 44 | Open |
| 227 | 2024-08-03 | Cristina Foisor Mem Rapid | Timisoara ROU | 3.27 | David Cr. Radu | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 228 | 2024-08-03 | Cristina Foisor Mem Rapid | Timisoara ROU | 2.29 | Ruben Gideon Koellner | Dragos-Olivar Minescu | 1-0 | 35 | Open |
| 229 | 2024-08-03 | Cristina Foisor Mem Rapid | Timisoara ROU | 1.3 | Raul Cristian Codru | Ruben Gideon Koellner | 0-1 | 24 | Open |
| 230 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 9 | Ruben Gideon Koellner | Imangali Akhilbay | 0-1 | 53 | Open |
| 231 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 8 | Ward Al-Tarboush | Ruben Gideon Koellner | 0-1 | 73 | Open |
| 232 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 7 | Ruben Gideon Koellner | Alejo Ismael Gimenez Aguirre | 1-0 | 22 | Open |
| 233 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 6 | Antonio Carlos Bambino Filho | Ruben Gideon Koellner | 0-1 | 60 | Open |
| 234 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 5 | Cristhian Montero Martinez | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 235 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 4 | Ruben Gideon Koellner | Kenneth Odeh | 1-0 | 45 | Open |
| 236 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 3 | Joshua Meng | Ruben Gideon Koellner | 1/2-1/2 | 47 | Open |
| 237 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 2 | Ruben Gideon Koellner | Dawton Almino Lemos | 0-1 | 97 | Open |
| 238 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 1 | Mina Wael Sabry | Ruben Gideon Koellner | 1-0 | 63 | Open |
| 239 | 2024-07-21 | 37th Sonnenterrasse Open | Schwarzach AUT | 9.1 | Ruben Gideon Koellner | Davor Rogic | 1-0 | 36 | Open |
| 240 | 2024-07-20 | 37th Sonnenterrasse Open | Schwarzach AUT | 8.1 | Johannes Lerch | Ruben Gideon Koellner | 1/2-1/2 | 11 | Open |
| 241 | 2024-07-19 | 37th Sonnenterrasse Open | Schwarzach AUT | 7.1 | Ruben Gideon Koellner | Cedric Chassard | 1-0 | 44 | Open |
| 242 | 2024-07-18 | 37th Sonnenterrasse Open | Schwarzach AUT | 6.1 | Robert Zelcic | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 243 | 2024-07-17 | 37th Sonnenterrasse Open | Schwarzach AUT | 5.1 | Ruben Gideon Koellner | Matija Ostovic | 1-0 | 42 | Open |
| 244 | 2024-07-16 | 37th Sonnenterrasse Open | Schwarzach AUT | 4.1 | Moritz Weishaeutel | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 245 | 2024-07-15 | 37th Sonnenterrasse Open | Schwarzach AUT | 3.1 | Ruben Gideon Koellner | Matic Lavrencic | 1/2-1/2 | 41 | Open |
| 246 | 2024-07-14 | 37th Sonnenterrasse Open | Schwarzach AUT | 2.1 | Andre Kunz | Ruben Gideon Koellner | 0-1 | 54 | Open |
| 247 | 2024-07-14 | 37th Sonnenterrasse Open | Schwarzach AUT | 1.1 | Ruben Gideon Koellner | Duluu Tumur-Ochir | 1-0 | 31 | Open |
| 248 | 2024-07-13 | 43rd St Veit Open 2024 | St Veit AUT | 9.1 | Ruben Gideon Koellner | Christopher Schwarhofer | 1-0 | 32 | Open |
| 249 | 2024-07-12 | 43rd St Veit Open 2024 | St Veit AUT | 8.1 | Leon Mazi | Ruben Gideon Koellner | 1/2-1/2 | 57 | Open |
| 250 | 2024-07-11 | 43rd St Veit Open 2024 | St Veit AUT | 7.1 | Ruben Gideon Koellner | David Schernthaner | 1-0 | 68 | Open |
| 251 | 2024-07-10 | 43rd St Veit Open 2024 | St Veit AUT | 6.1 | Tobias Kuegel | Ruben Gideon Koellner | 1/2-1/2 | 43 | Open |
| 252 | 2024-07-09 | 43rd St Veit Open 2024 | St Veit AUT | 5.1 | Ruben Gideon Koellner | Marin Bosiocic | 1-0 | 86 | Open |
| 253 | 2024-07-08 | 43rd St Veit Open 2024 | St Veit AUT | 4.2 | Klaudia Kulon | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 254 | 2024-07-07 | 43rd St Veit Open 2024 | St Veit AUT | 3.2 | Ruben Gideon Koellner | Jonas Rempe | 1-0 | 32 | Open |
| 255 | 2024-07-07 | 43rd St Veit Open 2024 | St Veit AUT | 2.2 | Fred Wegerer | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 256 | 2024-07-06 | 43rd St Veit Open 2024 | St Veit AUT | 1.2 | Ruben Gideon Koellner | David Martinovic | 1-0 | 31 | Open |
| 257 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 9 | Ruben Gideon Koellner | Hugo Guillemette | 1-0 | 40 | Open |
| 258 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 8 | Sergio Adan Bermudez | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 259 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 7 | Ruben Gideon Koellner | Oleg Papayan | 1-0 | 24 | Open |
| 260 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 6 | Ruben Gideon Koellner | Kevin Yang | 1/2-1/2 | 80 | Open |
| 261 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 5 | William Safranek | Ruben Gideon Koellner | 0-1 | 90 | Open |
| 262 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 4 | Ruben Gideon Koellner | Vladislav Lymar | 0-1 | 51 | Open |
| 263 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 3 | Javokhir Sindarov | Ruben Gideon Koellner | 1-0 | 74 | Open |
| 264 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 2 | Ruben Gideon Koellner | Daniel Pinto | 1-0 | 30 | Open |
| 265 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 1 | Teimur Toktomushev | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 266 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 10 | Ruben Gideon Koellner | Kirill Klukin | 0-1 | 78 | Open |
| 267 | 2024-05-28 | Titled Tue 28th May Early | chess.com INT | 8 | Sergei Ljukin | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 268 | 2024-05-28 | Titled Tue 28th May Early | chess.com INT | 7 | Ruben Gideon Koellner | Dmitry Kononenko | 1-0 | 58 | Open |
| 269 | 2024-05-28 | Titled Tue 28th May Early | chess.com INT | 6 | Ruben Gideon Koellner | Bharadia Yash | 1-0 | 35 | Open |
| 270 | 2024-05-28 | Titled Tue 28th May Early | chess.com INT | 5 | Alexandros Papasimakopoulos | Ruben Gideon Koellner | 1-0 | 55 | Open |
| 271 | 2024-05-28 | Titled Tue 28th May Late | chess.com INT | 4 | Alain Otero Marino | Ruben Gideon Koellner | 1-0 | 49 | Open |
| 272 | 2024-05-28 | Titled Tue 28th May Early | chess.com INT | 4 | Ruben Gideon Koellner | Timofey Iljin | 1-0 | 60 | Open |
| 273 | 2024-05-28 | Titled Tue 28th May Early | chess.com INT | 3 | Soham Kamotra | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 274 | 2024-05-28 | Titled Tue 28th May Late | chess.com INT | 3 | Ruben Gideon Koellner | Jacob Flynn | 1-0 | 61 | Open |
| 275 | 2024-05-28 | Titled Tue 28th May Early | chess.com INT | 2 | Ruben Gideon Koellner | Leopold Le Ruyet | 1-0 | 34 | Open |
| 276 | 2024-05-28 | Titled Tue 28th May Late | chess.com INT | 2 | Ruben Gideon Koellner | Augustin Droin | 0-1 | 50 | Open |
| 277 | 2024-05-28 | Titled Tue 28th May Late | chess.com INT | 1 | Juan Manuel Garcia Almaguer | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 278 | 2024-05-28 | Titled Tue 28th May Early | chess.com INT | 1 | Michal Kopczynski | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 279 | 2024-05-21 | Titled Tue 21st May Late | chess.com INT | 2 | Carlos Alvarado | Ruben Gideon Koellner | 1/2-1/2 | 85 | Open |
| 280 | 2024-05-21 | Titled Tue 21st May Late | chess.com INT | 1 | Ruben Gideon Koellner | Matias Jaque Gutierrez | 0-1 | 49 | Open |
| 281 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 9 | Ruben Gideon Koellner | Mrudul Dehankar | 1-0 | 38 | Open |
| 282 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 8 | Ruben Gideon Koellner | Yevhenii Yelisieiev | 1-0 | 78 | Open |
| 283 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 7 | Faustino Oro | Ruben Gideon Koellner | 1-0 | 73 | Open |
| 284 | 2024-05-14 | Titled Tue 14th May Late | chess.com INT | 7 | Ruben Gideon Koellner | Chen Zou | 0-1 | 57 | Open |
| 285 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 6 | Ruben Gideon Koellner | Tykhon Cherniaiev | 1/2-1/2 | 51 | Open |
| 286 | 2024-05-14 | Titled Tue 14th May Late | chess.com INT | 6 | Maciej Sroczynski | Ruben Gideon Koellner | 0-1 | 18 | Open |
| 287 | 2024-05-14 | Titled Tue 14th May Late | chess.com INT | 5 | Ruben Gideon Koellner | Grigory Seletsky | 1-0 | 91 | Open |
| 288 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 5 | Ruben Gideon Koellner | Milosz Szpar | 1/2-1/2 | 126 | Open |
| 289 | 2024-05-14 | Titled Tue 14th May Late | chess.com INT | 4 | Klendi Zeneli | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 290 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 4 | Daniel Herman | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 291 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 3 | Ruben Gideon Koellner | Ronan Le Goff | 1-0 | 35 | Open |
| 292 | 2024-05-14 | Titled Tue 14th May Late | chess.com INT | 3 | Ruben Gideon Koellner | Sharath Radhakrishnan | 0-1 | 50 | Open |
| 293 | 2024-05-14 | Titled Tue 14th May Late | chess.com INT | 2 | Jaime Santos Latasa | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 294 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 2 | Aaron Matthes | Ruben Gideon Koellner | 0-1 | 55 | Open |
| 295 | 2024-05-14 | Titled Tue 14th May Late | chess.com INT | 1 | Aiden Zhou | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 296 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 1 | Ruben Gideon Koellner | David George Samir | 0-1 | 60 | Open |
| 297 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 11 | Ruben Gideon Koellner | Alejandro Castellanos Gomez | 0-1 | 28 | Open |
| 298 | 2024-05-14 | Titled Tue 14th May Early | chess.com INT | 10 | Matvey Galchenko | Ruben Gideon Koellner | 1-0 | 77 | Open |
| 299 | 2024-05-08 | Chess.com Classic Play-In | chess.com INT | 9.42 | Pavel Smirnov | Ruben Gideon Koellner | 1-0 | 76 | Open |
| 300 | 2024-05-08 | Chess.com Classic Play-In | chess.com INT | 8.43 | Samvel Ter-Sahakyan | Ruben Gideon Koellner | 1/2-1/2 | 39 | Open |
| 301 | 2024-05-08 | Chess.com Classic Play-In | chess.com INT | 7.55 | Ruben Gideon Koellner | Anton Demchenko | 1-0 | 48 | Open |
| 302 | 2024-05-08 | Chess.com Classic Play-In | chess.com INT | 6.44 | Bogdan-Daniel Deac | Ruben Gideon Koellner | 1-0 | 40 | Open |
| 303 | 2024-05-08 | Chess.com Classic Play-In | chess.com INT | 5.59 | Constantin Lupulescu | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 304 | 2024-05-08 | Chess.com Classic Play-In | chess.com INT | 4.57 | Ruben Gideon Koellner | Sanan Sjugirov | 1/2-1/2 | 45 | Open |
| 305 | 2024-05-08 | Chess.com Classic Play-In | chess.com INT | 3.43 | Bardiya Daneshvar | Ruben Gideon Koellner | 1-0 | 55 | Open |
| 306 | 2024-05-08 | Chess.com Classic Play-In | chess.com INT | 2.49 | Ruben Gideon Koellner | Christopher Woojin Yoo | 1/2-1/2 | 60 | Open |
| 307 | 2024-05-08 | Chess.com Classic Play-In | chess.com INT | 1.49 | Ruben Gideon Koellner | Pouya Idani | 1/2-1/2 | 72 | Open |
| 308 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 9 | Roman Gavrilin | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 309 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 8 | Ruben Gideon Koellner | Sanan Sjugirov | 0-1 | 59 | Open |
| 310 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 7 | Ruben Gideon Koellner | Ryan Hamley | 1-0 | 72 | Open |
| 311 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 6 | Jose Carlos Ibarra Jerez | Ruben Gideon Koellner | 1-0 | 55 | Open |
| 312 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 5 | Ruben Gideon Koellner | Mohammadhossein Shamsi | 1-0 | 28 | Open |
| 313 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 4 | Peter T Roberson | Ruben Gideon Koellner | 0-1 | 27 | Open |
| 314 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 3 | Ruben Gideon Koellner | Alexey Sarana | 0-1 | 50 | Open |
| 315 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 2 | Albert Tomasi | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 316 | 2024-05-07 | Titled Tue 7th May Early | chess.com INT | 2 | Ruben Gideon Koellner | Blazej Grot | 0-1 | 73 | Open |
| 317 | 2024-05-07 | Titled Tue 7th May Early | chess.com INT | 1 | Sabrina Vega Gutierrez | Ruben Gideon Koellner | 1/2-1/2 | 68 | Open |
| 318 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 1 | Ruben Gideon Koellner | Maxim Novik | 1-0 | 40 | Open |
| 319 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 11 | Tamas Banusz | Ruben Gideon Koellner | 1-0 | 62 | Open |
| 320 | 2024-05-07 | Titled Tue 7th May Late | chess.com INT | 10 | Ruben Gideon Koellner | Nicola Altini | 1-0 | 54 | Open |
| 321 | 2024-04-28 | Bundesliga 2023-24 | Hannover GER | 15.4 | Collin Colbow | Ruben Gideon Koellner | 1/2-1/2 | 36 | Open |
| 322 | 2024-04-27 | Bundesliga 2023-24 | Hannover GER | 14.4 | Ruben Gideon Koellner | Blazimir Kovacevic | 0-1 | 102 | Open |
| 323 | 2024-04-23 | Titled Tue 23rd Apr Early | chess.com INT | 7 | Ruben Gideon Koellner | Mohamed Ezat | 0-1 | 32 | Open |
| 324 | 2024-04-23 | Titled Tue 23rd Apr Early | chess.com INT | 6 | Maxim Novik | Ruben Gideon Koellner | 0-1 | 48 | Open |
| 325 | 2024-04-23 | Titled Tue 23rd Apr Early | chess.com INT | 5 | Ruben Gideon Koellner | Sam Shankland | 0-1 | 78 | Open |
| 326 | 2024-04-23 | Titled Tue 23rd Apr Early | chess.com INT | 4 | Ruben Gideon Koellner | Leonel Figueredo Losada | 1-0 | 31 | Open |
| 327 | 2024-04-23 | Titled Tue 23rd Apr Early | chess.com INT | 3 | Rudik Makarian | Ruben Gideon Koellner | 1-0 | 19 | Open |
| 328 | 2024-04-23 | Titled Tue 23rd Apr Early | chess.com INT | 2 | Ramon Jr. Manon-og | Ruben Gideon Koellner | 0-1 | 58 | Open |
| 329 | 2024-04-23 | Titled Tue 23rd Apr Late | chess.com INT | 1 | Sean Senft | Ruben Gideon Koellner | 1-0 | 46 | Open |
| 330 | 2024-04-23 | Titled Tue 23rd Apr Early | chess.com INT | 1 | Ruben Gideon Koellner | Piotr Brzezina | 1-0 | 75 | Open |
| 331 | 2024-04-16 | Titled Tue 16th Apr Late | chess.com INT | 4 | Jan Boder | Ruben Gideon Koellner | 1-0 | 56 | Open |
| 332 | 2024-04-16 | Titled Tue 16th Apr Late | chess.com INT | 3 | Ruben Gideon Koellner | Vincent W Stone | 1-0 | 29 | Open |
| 333 | 2024-04-16 | Titled Tue 16th Apr Late | chess.com INT | 2 | Orest Vovk | Ruben Gideon Koellner | 1/2-1/2 | 74 | Open |
| 334 | 2024-04-16 | Titled Tue 16th Apr Late | chess.com INT | 1 | Ruben Gideon Koellner | Galina Novikova | 1-0 | 29 | Open |
| 335 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 9 | Ruben Gideon Koellner | Gokhale Rishabh Chandrashekhar | 1-0 | 44 | Open |
| 336 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 8 | Ruben Gideon Koellner | Alexey Sarana | 0-1 | 34 | Open |
| 337 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 7 | Timofey Iljin | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 338 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 6 | Ruben Gideon Koellner | Gor Glidzhain | 1-0 | 55 | Open |
| 339 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 5 | Maksim Volkov | Ruben Gideon Koellner | 1-0 | 55 | Open |
| 340 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 4 | Ruben Gideon Koellner | Luke C Miller | 1-0 | 11 | Open |
| 341 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 3 | Ediz Gurel | Ruben Gideon Koellner | 1-0 | 38 | Open |
| 342 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 2 | Rushan Bogaudinov | Ruben Gideon Koellner | 0-1 | 49 | Open |
| 343 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 1 | Ruben Gideon Koellner | Artem Postnikov | 1-0 | 28 | Open |
| 344 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 11 | Bojan Maksimovic | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 345 | 2024-04-09 | Titled Tue 9th Apr Early | chess.com INT | 10 | Christof Sielecki | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 346 | 2024-04-01 | GRENKE Chess Open 2024 | Karlsruhe GER | 9.25 | Torben Knuedel | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 347 | 2024-04-01 | GRENKE Chess Open 2024 | Karlsruhe GER | 8.29 | Ruben Gideon Koellner | Jakub Janeczko | 1/2-1/2 | 49 | Open |
| 348 | 2024-03-31 | GRENKE Chess Open 2024 | Karlsruhe GER | 7.35 | Marco Dobrikov | Ruben Gideon Koellner | 0-1 | 58 | Open |
| 349 | 2024-03-31 | GRENKE Chess Open 2024 | Karlsruhe GER | 6.32 | Ruben Gideon Koellner | Gulrukhbegim Tokhirjonova | 1/2-1/2 | 45 | Open |
| 350 | 2024-03-30 | GRENKE Chess Open 2024 | Karlsruhe GER | 5.25 | Adam Frank | Ruben Gideon Koellner | 1/2-1/2 | 32 | Open |
| 351 | 2024-03-30 | GRENKE Chess Open 2024 | Karlsruhe GER | 4.39 | Ruben Gideon Koellner | Carsten Hecht | 1-0 | 76 | Open |
| 352 | 2024-03-29 | GRENKE Chess Open 2024 | Karlsruhe GER | 3.36 | Christoph Kuberczyk | Ruben Gideon Koellner | 1/2-1/2 | 56 | Open |
| 353 | 2024-03-29 | GRENKE Chess Open 2024 | Karlsruhe GER | 2.47 | Ruben Gideon Koellner | Marharyta Khrapko | 1-0 | 82 | Open |
| 354 | 2024-03-28 | GRENKE Chess Open 2024 | Karlsruhe GER | 1.53 | Andreas Mende | Ruben Gideon Koellner | 0-1 | 50 | Open |
| 355 | 2024-03-26 | Titled Tue 26th Mar Late | chess.com INT | 7 | Ruben Gideon Koellner | Marek Karas | 0-1 | 77 | Open |
| 356 | 2024-03-26 | Titled Tue 26th Mar Late | chess.com INT | 6 | Renato Terry | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 357 | 2024-03-26 | Titled Tue 26th Mar Late | chess.com INT | 5 | Ruben Gideon Koellner | Viacheslav Tikhonov | 1-0 | 54 | Open |
| 358 | 2024-03-26 | Titled Tue 26th Mar Late | chess.com INT | 4 | Irina Bulmaga | Ruben Gideon Koellner | 1/2-1/2 | 91 | Open |
| 359 | 2024-03-26 | Titled Tue 26th Mar Late | chess.com INT | 3 | Ruben Gideon Koellner | Olexandr Bortnyk | 0-1 | 58 | Open |
| 360 | 2024-03-26 | Titled Tue 26th Mar Late | chess.com INT | 2 | Ruben Gideon Koellner | Asish Panda | 1-0 | 78 | Open |
| 361 | 2024-03-26 | Titled Tue 26th Mar Early | chess.com INT | 1 | Ruben Gideon Koellner | Rushan Bogaudinov | 0-1 | 47 | Open |
| 362 | 2024-03-26 | Titled Tue 26th Mar Late | chess.com INT | 1 | Michal Mazurkiewicz | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 363 | 2024-03-19 | Titled Tue 19th Mar Early | chess.com INT | 7 | Ruben Gideon Koellner | Alexander King | 0-1 | 57 | Open |
| 364 | 2024-03-19 | Titled Tue 19th Mar Early | chess.com INT | 6 | David Paravyan | Ruben Gideon Koellner | 1-0 | 38 | Open |
| 365 | 2024-03-19 | Titled Tue 19th Mar Early | chess.com INT | 5 | Ruben Gideon Koellner | Vasif Durarbayli | 1/2-1/2 | 62 | Open |
| 366 | 2024-03-19 | Titled Tue 19th Mar Early | chess.com INT | 4 | Ruben Gideon Koellner | Sanan Sjugirov | 1-0 | 54 | Open |
| 367 | 2024-03-19 | Titled Tue 19th Mar Early | chess.com INT | 3 | Viktor Skliarov | Ruben Gideon Koellner | 0-1 | 62 | Open |
| 368 | 2024-03-19 | Titled Tue 19th Mar Early | chess.com INT | 2 | Ruben Gideon Koellner | Metehan Ozen | 1-0 | 48 | Open |
| 369 | 2024-03-19 | Titled Tue 19th Mar Early | chess.com INT | 1 | Stanoje Jovic | Ruben Gideon Koellner | 1/2-1/2 | 43 | Open |
| 370 | 2024-03-17 | Bundesliga 2023-24 | Dresden GER | 13.1 | Ruben Gideon Koellner | Gengchun Wong | 0-1 | 42 | Open |
| 371 | 2024-03-16 | Bundesliga 2023-24 | Dresden GER | 12.2 | Sreyas Payyappat | Ruben Gideon Koellner | 1/2-1/2 | 60 | Open |
| 372 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 9 | Michal Mazurkiewicz | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 373 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 8 | Ruben Gideon Koellner | Marek Karas | 1-0 | 31 | Open |
| 374 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 7 | Aleksandr Shimanov | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 375 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 6 | Paris Prestia | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 376 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 5 | Ruben Gideon Koellner | Marco Dobrikov | 1-0 | 55 | Open |
| 377 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 4 | Yoseph Theolifus Taher | Ruben Gideon Koellner | 1-0 | 28 | Open |
| 378 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 3 | Ruben Gideon Koellner | Vahap Sanal | 1/2-1/2 | 45 | Open |
| 379 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 2 | Ruben Gideon Koellner | Oscar Gerardo Sanchez Enriquez | 1-0 | 43 | Open |
| 380 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 1 | Simeon Todev | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 381 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 11 | David Paravyan | Ruben Gideon Koellner | 1/2-1/2 | 66 | Open |
| 382 | 2024-03-12 | Titled Tue 12th Mar Late | chess.com INT | 10 | Ruben Gideon Koellner | Alan Pichot | 1-0 | 25 | Open |
| 383 | 2024-03-05 | Titled Tue 5th Mar Early | chess.com INT | 2 | David George Samir | Ruben Gideon Koellner | 1-0 | 68 | Open |
| 384 | 2024-03-05 | Titled Tue 5th Mar Early | chess.com INT | 1 | Ruben Gideon Koellner | Anna-Maja Kazarian | 0-1 | 57 | Open |
| 385 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 9 | Ruben Gideon Koellner | Alan Pichot | 0-1 | 31 | Open |
| 386 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 8 | Eduardo Jesus Mendez Fortes | Ruben Gideon Koellner | 0-1 | 82 | Open |
| 387 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 7 | Dashgyn Ibadov | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 388 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 6 | Ruben Gideon Koellner | Erigaisi Arjun | 0-1 | 70 | Open |
| 389 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 5 | Kamal Aghasiyev | Ruben Gideon Koellner | 0-1 | 61 | Open |
| 390 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 4 | Ruben Gideon Koellner | Olexandr Bortnyk | 0-1 | 25 | Open |
| 391 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 3 | Ruben Gideon Koellner | Gustavo Ribeiro | 1-0 | 40 | Open |
| 392 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 2 | Erik Ronka | Ruben Gideon Koellner | 0-1 | 49 | Open |
| 393 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 1 | Ruben Gideon Koellner | Michael Kotyk | 1-0 | 48 | Open |
| 394 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 11 | Ruben Gideon Koellner | Vugar Rasulov | 1-0 | 34 | Open |
| 395 | 2024-02-27 | Titled Tue 27th Feb Late | chess.com INT | 10 | Alberto Martin Fuentes | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 396 | 2024-02-13 | Baden-Baden Faschingsopen | Baden Baden GER | 9.5 | Ruben Gideon Koellner | Simon Knudsen | 1-0 | 45 | Open |
| 397 | 2024-02-13 | Baden-Baden Faschingsopen | Baden Baden GER | 8.8 | Henrik Cernov | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 398 | 2024-02-12 | Baden-Baden Faschingsopen | Baden Baden GER | 7.8 | Ruben Gideon Koellner | Pascal Nied | 1/2-1/2 | 71 | Open |
| 399 | 2024-02-12 | Baden-Baden Faschingsopen | Baden Baden GER | 6.7 | Timur Kocharin | Ruben Gideon Koellner | 1/2-1/2 | 108 | Open |
| 400 | 2024-02-11 | Baden-Baden Faschingsopen | Baden Baden GER | 5.5 | Ruben Gideon Koellner | Martin Hartmann | 1/2-1/2 | 97 | Open |
| 401 | 2024-02-11 | Baden-Baden Faschingsopen | Baden Baden GER | 4.9 | Hannes Metzinger | Ruben Gideon Koellner | 0-1 | 50 | Open |
| 402 | 2024-02-10 | Baden-Baden Faschingsopen | Baden Baden GER | 3.4 | Ruben Gideon Koellner | Xiao Zhang | 0-1 | 74 | Open |
| 403 | 2024-02-10 | Baden-Baden Faschingsopen | Baden Baden GER | 2.4 | Maximilian Menzel | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 404 | 2024-02-09 | Baden-Baden Faschingsopen | Baden Baden GER | 1.4 | Ruben Gideon Koellner | Daniel Goldinov | 1-0 | 33 | Open |
| 405 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 9 | Ruben Gideon Koellner | Viktor N. Parfenov | 1-0 | 20 | Open |
| 406 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 8 | Eray Kilic | Ruben Gideon Koellner | 1-0 | 88 | Open |
| 407 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 7 | Sarp Sahin | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 408 | 2024-02-06 | Titled Tue 6th Feb Late | chess.com INT | 6 | Ruben Gideon Koellner | Francesco Bettalli | 0-1 | 68 | Open |
| 409 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 6 | Ruben Gideon Koellner | Samson Benen | 1-0 | 18 | Open |
| 410 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 5 | Nikolas Theodorou | Ruben Gideon Koellner | 1-0 | 49 | Open |
| 411 | 2024-02-06 | Titled Tue 6th Feb Late | chess.com INT | 5 | Malak Ismayil | Ruben Gideon Koellner | 1/2-1/2 | 78 | Open |
| 412 | 2024-02-06 | Titled Tue 6th Feb Late | chess.com INT | 4 | Ruben Gideon Koellner | Valerio Carnicelli | 1/2-1/2 | 77 | Open |
| 413 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 4 | Ruben Gideon Koellner | Igor Wilk | 1-0 | 33 | Open |
| 414 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 3 | Aadit Bhatia | Ruben Gideon Koellner | 0-1 | 27 | Open |
| 415 | 2024-02-06 | Titled Tue 6th Feb Late | chess.com INT | 3 | Bogdan-Daniel Deac | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 416 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 2 | Ruben Gideon Koellner | Carlos A. Juarez Flores | 0-1 | 39 | Open |
| 417 | 2024-02-06 | Titled Tue 6th Feb Late | chess.com INT | 2 | Ruben Gideon Koellner | Evgueniy Taranenko | 1-0 | 36 | Open |
| 418 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 1 | Mushini Ajay | Ruben Gideon Koellner | 0-1 | 53 | Open |
| 419 | 2024-02-06 | Titled Tue 6th Feb Late | chess.com INT | 1 | Alain Prieto Aranguren | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 420 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 11 | Milosz Szpar | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 421 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 10 | Hovik Hayrapetyan | Ruben Gideon Koellner | 1/2-1/2 | 78 | Open |
| 422 | 2024-01-30 | Titled Tue 30th Jan Late | chess.com INT | 5 | Ruben Gideon Koellner | Robin-Alexandru Dragomirescu | 0-1 | 45 | Open |
| 423 | 2024-01-30 | Titled Tue 30th Jan Late | chess.com INT | 4 | Alberto Santos Flores | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 424 | 2024-01-30 | Titled Tue 30th Jan Late | chess.com INT | 3 | Ruben Gideon Koellner | Metehan Ozen | 0-1 | 91 | Open |
| 425 | 2024-01-30 | Titled Tue 30th Jan Late | chess.com INT | 2 | Levente Miszler | Ruben Gideon Koellner | 1/2-1/2 | 66 | Open |
| 426 | 2024-01-30 | Titled Tue 30th Jan Late | chess.com INT | 1 | Ruben Gideon Koellner | Atousa Pourkashiyan | 1-0 | 70 | Open |
| 427 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 9 | Ruben Gideon Koellner | Valeriy Grinev | 1-0 | 40 | Open |
| 428 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 8 | Dmytro Biletskyy | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 429 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 7 | Ruben Gideon Koellner | Denis Lazavik | 0-1 | 33 | Open |
| 430 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 6 | Ruben Gideon Koellner | Viktor Shapiro | 1-0 | 59 | Open |
| 431 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 5 | Gata Kamsky | Ruben Gideon Koellner | 1-0 | 56 | Open |
| 432 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 4 | Ruben Gideon Koellner | Bruno Andre Leite Martins | 1-0 | 51 | Open |
| 433 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 3 | Kirill Alekseenko | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 434 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 2 | Blazej Grot | Ruben Gideon Koellner | 0-1 | 74 | Open |
| 435 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 1 | Ruben Gideon Koellner | Daniel Hanwen Gong | 1-0 | 70 | Open |
| 436 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 11 | Ruben Gideon Koellner | Ralph Tan | 1/2-1/2 | 64 | Open |
| 437 | 2024-01-23 | Titled Tue 23rd Jan Late | chess.com INT | 10 | Dau Khuong Duy | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 438 | 2024-01-16 | Titled Tue 16th Jan Late | chess.com INT | 4 | Ruben Gideon Koellner | Jose Carlos Ibarra Jerez | 0-1 | 51 | Open |
| 439 | 2024-01-16 | Titled Tue 16th Jan Late | chess.com INT | 3 | Chanchal Kumer Ghosh | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 440 | 2024-01-16 | Titled Tue 16th Jan Late | chess.com INT | 2 | Alexander Spichkin | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 441 | 2024-01-16 | Titled Tue 16th Jan Late | chess.com INT | 1 | Ruben Gideon Koellner | Dmitrii Marcziter | 1/2-1/2 | 50 | Open |
| 442 | 2024-01-09 | Titled Tue 9th Jan Late | chess.com INT | 5 | Ruben Gideon Koellner | Galina Novikova | 0-1 | 81 | Open |
| 443 | 2024-01-09 | Titled Tue 9th Jan Late | chess.com INT | 4 | Aron Pasti | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 444 | 2024-01-09 | Titled Tue 9th Jan Late | chess.com INT | 3 | Ruben Gideon Koellner | Kevin Davidson | 1-0 | 32 | Open |
| 445 | 2024-01-09 | Titled Tue 9th Jan Late | chess.com INT | 2 | Samuel Jesus P Goncalves | Ruben Gideon Koellner | 0-1 | 70 | Open |
| 446 | 2024-01-09 | Titled Tue 9th Jan Late | chess.com INT | 1 | Ruben Gideon Koellner | David Blanco Diez | 0-1 | 29 | Open |
| 447 | 2024-01-06 | 34th Staufer-Open 2024 | Schwaebisch Gmuend GER | 9.7 | Mykyta Volkov | Ruben Gideon Koellner | 1/2-1/2 | 17 | Open |
| 448 | 2024-01-05 | 34th Staufer-Open 2024 | Schwaebisch Gmuend GER | 8.5 | Ruben Gideon Koellner | Gengchun Wong | 1/2-1/2 | 28 | Open |
| 449 | 2024-01-05 | 34th Staufer-Open 2024 | Schwaebisch Gmuend GER | 7.11 | Ruben Gideon Koellner | Alfred Nemitz | 1-0 | 42 | Open |
| 450 | 2024-01-04 | 34th Staufer-Open 2024 | Schwaebisch Gmuend GER | 6.8 | Marharyta Khrapko | Ruben Gideon Koellner | 1/2-1/2 | 39 | Open |
| 451 | 2024-01-04 | 34th Staufer-Open 2024 | Schwaebisch Gmuend GER | 5.16 | Ruben Gideon Koellner | Florentin Luebke | 1-0 | 42 | Open |
| 452 | 2024-01-03 | 34th Staufer-Open 2024 | Schwaebisch Gmuend GER | 4.11 | Florian Lesny | Ruben Gideon Koellner | 1/2-1/2 | 80 | Open |
| 453 | 2024-01-03 | 34th Staufer-Open 2024 | Schwaebisch Gmuend GER | 3.2 | Ruben Gideon Koellner | Simon Knudsen | 0-1 | 50 | Open |
| 454 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 6 | Ruben Gideon Koellner | Kaua Marques Silva | 0-1 | 42 | Open |
| 455 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 5 | Grigoriy Oparin | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 456 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 4 | Ruben Gideon Koellner | Guillermo Baches Garcia | 1-0 | 42 | Open |
| 457 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 3 | Aleksa Alimpic | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 458 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 2 | Ruben Gideon Koellner | Irine Kharisma Sukandar | 0-1 | 31 | Open |
| 459 | 2024-01-02 | 34th Staufer-Open 2024 | Schwaebisch Gmuend GER | 2.2 | Dietmar Kolbus | Ruben Gideon Koellner | 0-1 | 53 | Open |
| 460 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 1 | Slobodan J Filipovic | Ruben Gideon Koellner | 0-1 | 74 | Open |
| 461 | 2024-01-02 | 34th Staufer-Open 2024 | Schwaebisch Gmuend GER | 1.3 | Ruben Gideon Koellner | Jonas Lenz | 1-0 | 22 | Open |
| 462 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 9 | Dumitru-Daniel Dinu | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 463 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 8 | Pedro Ramon Martinez Reyes | Ruben Gideon Koellner | 1-0 | 57 | Open |
| 464 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 7 | Ruben Gideon Koellner | Martyn Kravtsiv | 0-1 | 63 | Open |
| 465 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 6 | Joakim Nilsson | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 466 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 5 | Ruben Gideon Koellner | Afruza Khamdamova | 1-0 | 44 | Open |
| 467 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 4 | Ruben Gideon Koellner | Arturo Eduardo Caceres Benitez | 1-0 | 27 | Open |
| 468 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 3 | Sargis V. Manukyan | Ruben Gideon Koellner | 1/2-1/2 | 22 | Open |
| 469 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 2 | Ruben Gideon Koellner | Marcin Smolka | 0-1 | 72 | Open |
| 470 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 1 | Thomas Kahlert | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 471 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 11 | Shakked Tifferet | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 472 | 2023-12-19 | Titled Tue 19th Dec Early | chess.com INT | 10 | Ruben Gideon Koellner | Asish Panda | 0-1 | 38 | Open |
| 473 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 9 | Ruben Gideon Koellner | Etienne Bacrot | 1/2-1/2 | 73 | Open |
| 474 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 8 | Sean Senft | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 475 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 7 | Anton Demchenko | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 476 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 6 | Ruben Gideon Koellner | Timofey Iljin | 1-0 | 52 | Open |
| 477 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 5 | Ruben Gideon Koellner | Matthias Dann | 1-0 | 37 | Open |
| 478 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 4 | Piotr Lopusiewicz | Ruben Gideon Koellner | 1/2-1/2 | 61 | Open |
| 479 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 3 | Yelyzaveta Hrebenshchykova | Ruben Gideon Koellner | 1/2-1/2 | 64 | Open |
| 480 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 2 | Ruben Gideon Koellner | V Pranav | 0-1 | 35 | Open |
| 481 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 1 | Ruben Gideon Koellner | Juan Carlos Mesa Cruz | 1-0 | 30 | Open |
| 482 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 11 | Valentin Dragnev | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 483 | 2023-12-12 | Titled Tue 12th Dec Early | chess.com INT | 10 | Volen Dyulgerov | Ruben Gideon Koellner | 0-1 | 12 | Open |
| 484 | 2023-12-08 | 4th elllobregat Open 2023 | Sant Boi ESP | 9.26 | Ruben Gideon Koellner | Mukhammadzokhid Suyarov | 0-1 | 77 | Open |
| 485 | 2023-12-07 | 4th elllobregat Open 2023 | Sant Boi ESP | 8.25 | Savva Vetokhin | Ruben Gideon Koellner | 1/2-1/2 | 31 | Open |
| 486 | 2023-12-06 | 4th elllobregat Open 2023 | Sant Boi ESP | 7.32 | Ruben Gideon Koellner | Alex Villa Tornero | 1-0 | 41 | Open |
| 487 | 2023-12-05 | 4th elllobregat Open 2023 | Sant Boi ESP | 6.43 | Phileas Mathieu | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 488 | 2023-12-05 | Titled Tue 5th Dec Late | chess.com INT | 3 | Aram Hakobyan | Ruben Gideon Koellner | 1-0 | 55 | Open |
| 489 | 2023-12-05 | Titled Tue 5th Dec Late | chess.com INT | 2 | Carlos Eduardo Cardozo Munar | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 490 | 2023-12-05 | Titled Tue 5th Dec Late | chess.com INT | 1 | Ruben Gideon Koellner | Evgeny Degtiarev | 1/2-1/2 | 77 | Open |
| 491 | 2023-12-04 | 4th elllobregat Open 2023 | Sant Boi ESP | 5.41 | Ruben Gideon Koellner | Zhenyong Jayden Wong | 1/2-1/2 | 25 | Open |
| 492 | 2023-12-03 | 4th elllobregat Open 2023 | Sant Boi ESP | 4.3 | Almas Rakhmatullaev | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 493 | 2023-12-02 | 4th elllobregat Open 2023 | Sant Boi ESP | 3.3 | Ruben Gideon Koellner | Narayanan S L | 0-1 | 100 | Open |
| 494 | 2023-12-01 | 4th elllobregat Open 2023 | Sant Boi ESP | 2.26 | Khumoyun Begmuratov | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 495 | 2023-11-30 | 4th elllobregat Open 2023 | Sant Boi ESP | 1.38 | Ruben Gideon Koellner | Ahmad Siar Wahedi | 1-0 | 64 | Open |
| 496 | 2023-11-28 | Titled Tue 28th Nov Late | chess.com INT | 7 | Ruben Gideon Koellner | Iung Alicio de O. Pinheiro | 0-1 | 33 | Open |
| 497 | 2023-11-28 | Titled Tue 28th Nov Late | chess.com INT | 6 | Cem Kaan Gokerkan | Ruben Gideon Koellner | 1-0 | 31 | Open |
| 498 | 2023-11-28 | Titled Tue 28th Nov Late | chess.com INT | 5 | Matthias Bluebaum | Ruben Gideon Koellner | 1-0 | 20 | Open |
| 499 | 2023-11-28 | Titled Tue 28th Nov Late | chess.com INT | 4 | Ruben Gideon Koellner | Jose Carlos Ibarra Jerez | 1/2-1/2 | 71 | Open |
| 500 | 2023-11-28 | Titled Tue 28th Nov Late | chess.com INT | 3 | Ruben Gideon Koellner | David Paravyan | 1-0 | 34 | Open |
| 501 | 2023-11-28 | Titled Tue 28th Nov Early | chess.com INT | 3 | Ruben Gideon Koellner | Yuliia Osmak | 0-1 | 23 | Open |
| 502 | 2023-11-28 | Titled Tue 28th Nov Early | chess.com INT | 2 | Nyamsuren Batbold | Ruben Gideon Koellner | 0-1 | 27 | Open |
| 503 | 2023-11-28 | Titled Tue 28th Nov Late | chess.com INT | 2 | Alexander J Wang | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 504 | 2023-11-28 | Titled Tue 28th Nov Late | chess.com INT | 1 | Ruben Gideon Koellner | Felix Rose | 1-0 | 74 | Open |
| 505 | 2023-11-28 | Titled Tue 28th Nov Early | chess.com INT | 1 | Ruben Gideon Koellner | Lile Koridze | 0-1 | 16 | Open |
| 506 | 2023-11-21 | Titled Tue 21st Nov Early | chess.com INT | 9 | Ruben Gideon Koellner | Baurzhan Kassimov | 0-1 | 51 | Open |
| 507 | 2023-11-21 | Titled Tue 21st Nov Early | chess.com INT | 8 | Ruben Gideon Koellner | Semen Kazmin | 1/2-1/2 | 114 | Open |
| 508 | 2023-11-21 | Titled Tue 21st Nov Early | chess.com INT | 7 | Aleksandr Rakhmanov | Ruben Gideon Koellner | 1-0 | 64 | Open |
| 509 | 2023-11-21 | Titled Tue 21st Nov Early | chess.com INT | 6 | Ruben Gideon Koellner | Alexander Devaev | 1-0 | 63 | Open |
| 510 | 2023-11-21 | Titled Tue 21st Nov Early | chess.com INT | 5 | Carlos Jose Pinero Rodriguez | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 511 | 2023-11-21 | Titled Tue 21st Nov Early | chess.com INT | 4 | Ruben Gideon Koellner | Bryan Xie | 1-0 | 43 | Open |
| 512 | 2023-11-21 | Titled Tue 21st Nov Early | chess.com INT | 3 | Sreyas Payyappat | Ruben Gideon Koellner | 1-0 | 93 | Open |
| 513 | 2023-11-21 | Titled Tue 21st Nov Early | chess.com INT | 2 | Ruben Gideon Koellner | Hikaru Nakamura | 0-1 | 37 | Open |
| 514 | 2023-11-21 | Titled Tue 21st Nov Late | chess.com INT | 1 | Ruben Gideon Koellner | Javier Buenafe Moya | 0-1 | 33 | Open |
| 515 | 2023-11-21 | Titled Tue 21st Nov Early | chess.com INT | 1 | Katarzyna Dwilewicz | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 516 | 2023-11-14 | Titled Tue 14th Nov Early | chess.com INT | 3 | Theo Bressy | Ruben Gideon Koellner | 1/2-1/2 | 58 | Open |
| 517 | 2023-11-14 | Titled Tue 14th Nov Early | chess.com INT | 2 | Ruben Gideon Koellner | Marija Kuznecova | 1-0 | 20 | Open |
| 518 | 2023-11-14 | Titled Tue 14th Nov Early | chess.com INT | 1 | Cherry Ann Mejia | Ruben Gideon Koellner | 1-0 | 61 | Open |
| 519 | 2023-11-07 | Titled Tue 7th Nov Early | chess.com INT | 8 | Zhamsaran Tsydypov | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 520 | 2023-11-07 | Titled Tue 7th Nov Early | chess.com INT | 7 | Igor Kovalenko | Ruben Gideon Koellner | 0-1 | 0 | Open |
| 521 | 2023-11-07 | Titled Tue 7th Nov Late | chess.com INT | 6 | Viacheslav Tikhonov | Ruben Gideon Koellner | 1-0 | 54 | Open |
| 522 | 2023-11-07 | Titled Tue 7th Nov Early | chess.com INT | 6 | Ruben Gideon Koellner | Mobina Alinasab | 1-0 | 42 | Open |
| 523 | 2023-11-07 | Titled Tue 7th Nov Early | chess.com INT | 5 | Marko Nenezic | Ruben Gideon Koellner | 1-0 | 20 | Open |
| 524 | 2023-11-07 | Titled Tue 7th Nov Late | chess.com INT | 5 | Ruben Gideon Koellner | Denis Makhnev | 0-1 | 74 | Open |
| 525 | 2023-11-07 | Titled Tue 7th Nov Late | chess.com INT | 4 | Rafael Leitao | Ruben Gideon Koellner | 1/2-1/2 | 62 | Open |
| 526 | 2023-11-07 | Titled Tue 7th Nov Early | chess.com INT | 4 | Ruben Gideon Koellner | Ethan Saya | 1-0 | 76 | Open |
| 527 | 2023-11-07 | Titled Tue 7th Nov Late | chess.com INT | 3 | Ruben Gideon Koellner | Asa Hoffmann | 1-0 | 33 | Open |
| 528 | 2023-11-07 | Titled Tue 7th Nov Early | chess.com INT | 3 | Ruben Gideon Koellner | Olexandr Shevchuk | 1-0 | 19 | Open |
| 529 | 2023-11-07 | Titled Tue 7th Nov Early | chess.com INT | 2 | Camilo Corredor Castellanos | Ruben Gideon Koellner | 0-1 | 18 | Open |
| 530 | 2023-11-07 | Titled Tue 7th Nov Late | chess.com INT | 2 | Mikhail Kazakov | Ruben Gideon Koellner | 1/2-1/2 | 72 | Open |
| 531 | 2023-11-07 | Titled Tue 7th Nov Early | chess.com INT | 1 | Ruben Gideon Koellner | Addison Lee | 0-1 | 42 | Open |
| 532 | 2023-11-07 | Titled Tue 7th Nov Late | chess.com INT | 1 | Ruben Gideon Koellner | Patrick Lacey | 1-0 | 30 | Open |
| 533 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 9 | Ruben Gideon Koellner | Dmitry Gurevich | 1/2-1/2 | 59 | Open |
| 534 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 8 | Yevhenii Yelisieiev | Ruben Gideon Koellner | 0-1 | 34 | Open |
| 535 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 7 | Ruben Gideon Koellner | Kanan Hajiyev | 1-0 | 78 | Open |
| 536 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 6 | Maxim Matyunin | Ruben Gideon Koellner | 1-0 | 85 | Open |
| 537 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 5 | Nick Figorito | Ruben Gideon Koellner | 1/2-1/2 | 57 | Open |
| 538 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 4 | Ruben Gideon Koellner | Ali Ekber Dogan | 1-0 | 72 | Open |
| 539 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 3 | Ruben Gideon Koellner | Vitaly Kunin | 1-0 | 40 | Open |
| 540 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 2 | Pavel Toropov | Ruben Gideon Koellner | 1-0 | 79 | Open |
| 541 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 1 | Ruben Gideon Koellner | Richard Polaczek | 1-0 | 32 | Open |
| 542 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 11 | Ruben Gideon Koellner | Maksim Chigaev | 1-0 | 63 | Open |
| 543 | 2023-10-31 | Titled Tue 31st Oct Late | chess.com INT | 10 | Valiantsin Yezhel | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 544 | 2023-10-29 | Rainer Radtke Mem 2023 | Berlin GER | 9.3 | Ruben Gideon Koellner | Martin Petrov | 1/2-1/2 | 42 | Open |
| 545 | 2023-10-28 | Rainer Radtke Mem 2023 | Berlin GER | 8.3 | Szymon Gumularz | Ruben Gideon Koellner | 1-0 | 45 | Open |
| 546 | 2023-10-27 | Rainer Radtke Mem 2023 | Berlin GER | 7.3 | Ruben Gideon Koellner | Paulius Pultinevicius | 1-0 | 37 | Open |
| 547 | 2023-10-26 | Rainer Radtke Mem 2023 | Berlin GER | 6.3 | Bennet Hagner | Ruben Gideon Koellner | 1/2-1/2 | 60 | Open |
| 548 | 2023-10-26 | Rainer Radtke Mem 2023 | Berlin GER | 5.3 | Ruben Gideon Koellner | Pijus Stremavicius | 1-0 | 48 | Open |
| 549 | 2023-10-25 | Rainer Radtke Mem 2023 | Berlin GER | 4.3 | Johannes Tschernatsch | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 550 | 2023-10-24 | Rainer Radtke Mem 2023 | Berlin GER | 3.3 | Ruben Gideon Koellner | Mikhail Tobak | 1/2-1/2 | 57 | Open |
| 551 | 2023-10-24 | Rainer Radtke Mem 2023 | Berlin GER | 2.3 | Keyvan Farokhi | Ruben Gideon Koellner | 0-1 | 52 | Open |
| 552 | 2023-10-23 | Rainer Radtke Mem 2023 | Berlin GER | 1.3 | Ruben Gideon Koellner | Levi Malinowsky | 1-0 | 28 | Open |
| 553 | 2023-10-22 | Bundesliga 2023-24 | Viernheim GER | 2.4 | Joerg Wegerle | Ruben Gideon Koellner | 1/2-1/2 | 55 | Open |
| 554 | 2023-10-21 | Bundesliga 2023-24 | Viernheim GER | 1.4 | Ruben Gideon Koellner | Tom Dordevic | 1-0 | 44 | Open |
| 555 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 9 | Ruben Gideon Koellner | Vjacheslav Weetik | 1/2-1/2 | 71 | Open |
| 556 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 8 | Evan S Rosenberg | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 557 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 7 | Ruben Gideon Koellner | Kanan Hajiyev | 1-0 | 93 | Open |
| 558 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 6 | Nicolas Perossa | Ruben Gideon Koellner | 0-1 | 70 | Open |
| 559 | 2023-10-17 | Titled Tue 17th Oct Late | chess.com INT | 6 | Ruben Gideon Koellner | Viacheslav Tikhonov | 1-0 | 46 | Open |
| 560 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 5 | Ruben Gideon Koellner | Arseniy Shturman | 1-0 | 35 | Open |
| 561 | 2023-10-17 | Titled Tue 17th Oct Late | chess.com INT | 5 | Jacques Muller Luxama | Ruben Gideon Koellner | 1-0 | 81 | Open |
| 562 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 4 | Yotam Shohat | Ruben Gideon Koellner | 0-1 | 74 | Open |
| 563 | 2023-10-17 | Titled Tue 17th Oct Late | chess.com INT | 4 | Ruben Gideon Koellner | Wojciech Smieszek | 1-0 | 39 | Open |
| 564 | 2023-10-17 | Titled Tue 17th Oct Late | chess.com INT | 3 | Sergei Zhigalko | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 565 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 3 | Ruben Gideon Koellner | Olexandr Shevchuk | 0-1 | 70 | Open |
| 566 | 2023-10-17 | Titled Tue 17th Oct Late | chess.com INT | 2 | Emir Gulbeyaz | Ruben Gideon Koellner | 0-1 | 30 | Open |
| 567 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 2 | Wojciech Przybylski | Ruben Gideon Koellner | 1-0 | 72 | Open |
| 568 | 2023-10-17 | Titled Tue 17th Oct Late | chess.com INT | 1 | Ruben Gideon Koellner | Mark Liubarov | 1-0 | 44 | Open |
| 569 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 1 | Ruben Gideon Koellner | Kirill Shoshin | 1-0 | 29 | Open |
| 570 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 11 | Ruben Gideon Koellner | Pranav Anand | 0-1 | 30 | Open |
| 571 | 2023-10-17 | Titled Tue 17th Oct Early | chess.com INT | 10 | Etienne Bacrot | Ruben Gideon Koellner | 0-1 | 55 | Open |
| 572 | 2023-10-01 | 60th World Juniors 2023 | Mexico City MEX | 11.11 | Filip Haring | Ruben Gideon Koellner | 1-0 | 78 | Open |
| 573 | 2023-09-30 | 60th World Juniors 2023 | Mexico City MEX | 10.1 | Ruben Gideon Koellner | Tobias Koelle | 1/2-1/2 | 32 | Open |
| 574 | 2023-09-29 | 60th World Juniors 2023 | Mexico City MEX | 9.15 | Noah Fecker | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 575 | 2023-09-28 | 60th World Juniors 2023 | Mexico City MEX | 8.1 | Ruben Gideon Koellner | Dushyant Sharma | 0-1 | 65 | Open |
| 576 | 2023-09-27 | 60th World Juniors 2023 | Mexico City MEX | 7.2 | Gleb Dudin | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 577 | 2023-09-26 | 60th World Juniors 2023 | Mexico City MEX | 6.4 | Ruben Gideon Koellner | Rudik Makarian | 1-0 | 36 | Open |
| 578 | 2023-09-24 | 60th World Juniors 2023 | Mexico City MEX | 5.5 | Nikolozi Kacharava | Ruben Gideon Koellner | 1/2-1/2 | 51 | Open |
| 579 | 2023-09-23 | 60th World Juniors 2023 | Mexico City MEX | 4.1 | Ruben Gideon Koellner | Arseniy Nesterov | 1/2-1/2 | 41 | Open |
| 580 | 2023-09-22 | 60th World Juniors 2023 | Mexico City MEX | 3.12 | Ruben Gideon Koellner | Konstantin Peyrer | 1-0 | 1 | Open |
| 581 | 2023-09-22 | 60th World Juniors 2023 | Mexico City MEX | 2.16 | Juan Sebastian Melian | Ruben Gideon Koellner | 0-1 | 49 | Open |
| 582 | 2023-09-21 | 60th World Juniors 2023 | Mexico City MEX | 1.17 | Ruben Gideon Koellner | Emmanuel Diaz Gonzalez Jardon | 1-0 | 31 | Open |
| 583 | 2023-09-18 | AI Cup Play-In 2023 | chess.com INT | 9 | Ruben Gideon Koellner | Pavel V. Tregubov | 1-0 | 14 | Open |
| 584 | 2023-09-18 | AI Cup Play-In 2023 | chess.com INT | 8 | Robby Kevlishvili | Ruben Gideon Koellner | 1-0 | 15 | Open |
| 585 | 2023-09-18 | AI Cup Play-In 2023 | chess.com INT | 7 | Ruben Gideon Koellner | Benjamin Bok | 1-0 | 49 | Open |
| 586 | 2023-09-18 | AI Cup Play-In 2023 | chess.com INT | 6 | Ruben Gideon Koellner | Tuan Minh Le | 0-1 | 68 | Open |
| 587 | 2023-09-18 | AI Cup Play-In 2023 | chess.com INT | 5 | Shamsiddin Vokhidov | Ruben Gideon Koellner | 1-0 | 26 | Open |
| 588 | 2023-09-18 | AI Cup Play-In 2023 | chess.com INT | 4 | Ruben Gideon Koellner | V Pranav | 1-0 | 43 | Open |
| 589 | 2023-09-18 | AI Cup Play-In 2023 | chess.com INT | 3 | Ruben Gideon Koellner | Rodrigo Vasquez Schroeder | 1-0 | 31 | Open |
| 590 | 2023-09-18 | AI Cup Play-In 2023 | chess.com INT | 2 | Eduardo Iturrizaga Bonelli | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 591 | 2023-09-18 | AI Cup Play-In 2023 | chess.com INT | 1 | Ioan-Cristian Chirila | Ruben Gideon Koellner | 1/2-1/2 | 47 | Open |
| 592 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 9 | Ruben Gideon Koellner | Artyom Timofeev | 1-0 | 66 | Open |
| 593 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 8 | Harsh Suresh | Ruben Gideon Koellner | 0-1 | 79 | Open |
| 594 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 7 | Ruben Gideon Koellner | Bharath Subramaniyam H | 0-1 | 35 | Open |
| 595 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 6 | Vladimir Zakhartsov | Ruben Gideon Koellner | 0-1 | 61 | Open |
| 596 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 5 | Ruben Gideon Koellner | Dmitry Zenin | 1-0 | 44 | Open |
| 597 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 4 | Bruno Andre Leite Martins | Ruben Gideon Koellner | 1/2-1/2 | 72 | Open |
| 598 | 2023-09-12 | Titled Tue 12th Sep Late | chess.com INT | 3 | David Paravyan | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 599 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 3 | Ruben Gideon Koellner | Daniel Herman | 1-0 | 35 | Open |
| 600 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 2 | Jose Eduardo Martinez Alcantara | Ruben Gideon Koellner | 1-0 | 28 | Open |
| 601 | 2023-09-12 | Titled Tue 12th Sep Late | chess.com INT | 2 | Ruben Gideon Koellner | Jaime Vaglio Munoz | 1-0 | 74 | Open |
| 602 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 1 | Olexandr Shevchuk | Ruben Gideon Koellner | 0-1 | 53 | Open |
| 603 | 2023-09-12 | Titled Tue 12th Sep Late | chess.com INT | 1 | Dimitry Korol | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 604 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 11 | Ruben Gideon Koellner | Jose Angel Guerra Mendez | 1-0 | 22 | Open |
| 605 | 2023-09-12 | Titled Tue 12th Sep Early | chess.com INT | 10 | Anton Demchenko | Ruben Gideon Koellner | 1/2-1/2 | 77 | Open |
| 606 | 2023-09-05 | Titled Tue 5th Sep Late | chess.com INT | 7 | Ruben Gideon Koellner | Jose Carlos Ibarra Jerez | 0-1 | 55 | Open |
| 607 | 2023-09-05 | Titled Tue 5th Sep Late | chess.com INT | 6 | Ruben Gideon Koellner | Taran Idnani | 1-0 | 93 | Open |
| 608 | 2023-09-05 | Titled Tue 5th Sep Late | chess.com INT | 5 | Grigor Grigorov | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 609 | 2023-09-05 | Titled Tue 5th Sep Late | chess.com INT | 4 | Ruben Gideon Koellner | Youhe Huang | 1-0 | 21 | Open |
| 610 | 2023-09-05 | Titled Tue 5th Sep Late | chess.com INT | 3 | Marcos Rodriguez Fontecha | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 611 | 2023-09-05 | Titled Tue 5th Sep Early | chess.com INT | 2 | Andrey Khromkin | Ruben Gideon Koellner | 1-0 | 22 | Open |
| 612 | 2023-09-05 | Titled Tue 5th Sep Late | chess.com INT | 2 | Ruben Gideon Koellner | Alexey Sarana | 0-1 | 28 | Open |
| 613 | 2023-09-05 | Titled Tue 5th Sep Late | chess.com INT | 1 | Samuel Copeland | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 614 | 2023-09-05 | Titled Tue 5th Sep Early | chess.com INT | 1 | Ruben Gideon Koellner | Mathis Sabatier | 0-1 | 28 | Open |
| 615 | 2023-08-29 | Titled Tue 29th Aug Early | chess.com INT | 1 | Viktoriya Tarasova | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 616 | 2023-08-29 | Titled Tue 29th Aug Late | chess.com INT | 1 | Ruben Gideon Koellner | Yago Labussiere | 0-1 | 78 | Open |
| 617 | 2023-08-28 | World Rapid Team 2023 | Dusseldorf GER | 9.4 | Robert Rabiega | Ruben Gideon Koellner | 1/2-1/2 | 38 | Open |
| 618 | 2023-08-28 | World Rapid Team 2023 | Dusseldorf GER | 12.7 | Ruben Gideon Koellner | Evgeny Zanan | 1-0 | 53 | Open |
| 619 | 2023-08-28 | World Rapid Team 2023 | Dusseldorf GER | 11.11 | Ruben Gideon Koellner | Thomas Koch | 1/2-1/2 | 81 | Open |
| 620 | 2023-08-28 | World Rapid Team 2023 | Dusseldorf GER | 10.7 | Peter Svidler | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 621 | 2023-08-27 | World Rapid Team 2023 | Dusseldorf GER | 8.8 | Ruben Gideon Koellner | Nigel D Short | 0-1 | 32 | Open |
| 622 | 2023-08-27 | World Rapid Team 2023 | Dusseldorf GER | 7.8 | Bilel Bellahcene | Ruben Gideon Koellner | 1-0 | 27 | Open |
| 623 | 2023-08-27 | World Rapid Team 2023 | Dusseldorf GER | 6.6 | Ruben Gideon Koellner | Jorden Van Foreest | 1/2-1/2 | 59 | Open |
| 624 | 2023-08-27 | World Rapid Team 2023 | Dusseldorf GER | 5.1 | Ruben Gideon Koellner | Ben Magana | 1-0 | 42 | Open |
| 625 | 2023-08-26 | World Rapid Team 2023 | Dusseldorf GER | 4.3 | Haik M. Martirosyan | Ruben Gideon Koellner | 1-0 | 64 | Open |
| 626 | 2023-08-26 | World Rapid Team 2023 | Dusseldorf GER | 3.7 | Ruben Gideon Koellner | Nicolas Perossa | 1-0 | 60 | Open |
| 627 | 2023-08-26 | World Rapid Team 2023 | Dusseldorf GER | 2.3 | Alexander Grischuk | Ruben Gideon Koellner | 1-0 | 32 | Open |
| 628 | 2023-08-26 | World Rapid Team 2023 | Dusseldorf GER | 1.14 | Sander Miesen | Ruben Gideon Koellner | 0-1 | 53 | Open |
| 629 | 2023-08-22 | Titled Tue 22nd Aug Early | chess.com INT | 6 | Ruben Gideon Koellner | Tomasz Jaskolka | 0-1 | 61 | Open |
| 630 | 2023-08-22 | Titled Tue 22nd Aug Late | chess.com INT | 5 | Gerson Principe | Ruben Gideon Koellner | 1-0 | 32 | Open |
| 631 | 2023-08-22 | Titled Tue 22nd Aug Early | chess.com INT | 5 | Ruben Gideon Koellner | Olga Badelka | 1/2-1/2 | 54 | Open |
| 632 | 2023-08-22 | Titled Tue 22nd Aug Late | chess.com INT | 4 | Ruben Gideon Koellner | Asish Panda | 1/2-1/2 | 31 | Open |
| 633 | 2023-08-22 | Titled Tue 22nd Aug Early | chess.com INT | 4 | Amir Hosein Kashefi | Ruben Gideon Koellner | 0-1 | 48 | Open |
| 634 | 2023-08-22 | Titled Tue 22nd Aug Late | chess.com INT | 3 | Ruben Gideon Koellner | Rauf Mamedov | 0-1 | 79 | Open |
| 635 | 2023-08-22 | Titled Tue 22nd Aug Early | chess.com INT | 3 | Ruben Gideon Koellner | Tuan Minh Le | 0-1 | 75 | Open |
| 636 | 2023-08-22 | Titled Tue 22nd Aug Early | chess.com INT | 2 | Ruben Gideon Koellner | Dias Issabayev | 1-0 | 43 | Open |
| 637 | 2023-08-22 | Titled Tue 22nd Aug Late | chess.com INT | 2 | Cristian-Stefan Serban | Ruben Gideon Koellner | 0-1 | 62 | Open |
| 638 | 2023-08-22 | Titled Tue 22nd Aug Early | chess.com INT | 1 | Rafael 1982 Merino Garcia | Ruben Gideon Koellner | 0-1 | 0 | Open |
| 639 | 2023-08-22 | Titled Tue 22nd Aug Late | chess.com INT | 1 | Ruben Gideon Koellner | Sergio Joshafatt Morales Garcia | 1-0 | 34 | Open |
| 640 | 2023-08-21 | chess.com SpeedChess Q1Sw | chess.com INT | 6 | Ruben Gideon Koellner | M. Amin Tabatabaei | 0-1 | 36 | Open |
| 641 | 2023-08-21 | chess.com SpeedChess Q1Sw | chess.com INT | 5 | Ruben Gideon Koellner | Konstantin L. Kodinets | 1-0 | 60 | Open |
| 642 | 2023-08-21 | chess.com SpeedChess Q1Sw | chess.com INT | 4 | Rosh Jain | Ruben Gideon Koellner | 1/2-1/2 | 47 | Open |
| 643 | 2023-08-21 | chess.com SpeedChess Q1Sw | chess.com INT | 3 | Ruben Gideon Koellner | Alexey Sarana | 0-1 | 26 | Open |
| 644 | 2023-08-21 | chess.com SpeedChess Q1Sw | chess.com INT | 2 | Ruben Gideon Koellner | Rinat Jumabayev | 0-1 | 57 | Open |
| 645 | 2023-08-21 | chess.com SpeedChess Q1Sw | chess.com INT | 1 | Marcel Winkels | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 646 | 2023-08-12 | Erkenschwick Jubilee 2023 | Oer-Erkenschwick GER | 9.5 | Ruben Gideon Koellner | Nikita Meshkovs | 1/2-1/2 | 53 | Open |
| 647 | 2023-08-11 | Erkenschwick Jubilee 2023 | Oer-Erkenschwick GER | 8.1 | Zigurds Lanka | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 648 | 2023-08-10 | Erkenschwick Jubilee 2023 | Oer-Erkenschwick GER | 7.5 | Hussain Besou | Ruben Gideon Koellner | 0-1 | 59 | Open |
| 649 | 2023-08-09 | Erkenschwick Jubilee 2023 | Oer-Erkenschwick GER | 6.2 | Ruben Gideon Koellner | Alexander Berelowitsch | 0-1 | 36 | Open |
| 650 | 2023-08-08 | Erkenschwick Jubilee 2023 | Oer-Erkenschwick GER | 5.4 | Shreyas Royal | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 651 | 2023-08-08 | Titled Tue 8th Aug Early | chess.com INT | 4 | Ruben Gideon Koellner | Bruno Andre Leite Martins | 0-1 | 60 | Open |
| 652 | 2023-08-08 | Titled Tue 8th Aug Early | chess.com INT | 3 | Mark Smirnov | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 653 | 2023-08-08 | Titled Tue 8th Aug Early | chess.com INT | 2 | Ruben Gideon Koellner | Jacob Chudnovsky | 1-0 | 23 | Open |
| 654 | 2023-08-08 | Titled Tue 8th Aug Early | chess.com INT | 1 | Kukreja Sankalp | Ruben Gideon Koellner | 1-0 | 27 | Open |
| 655 | 2023-08-07 | Erkenschwick Jubilee 2023 | Oer-Erkenschwick GER | 4.3 | Ruben Gideon Koellner | Kai Spriestersbach | 1-0 | 65 | Open |
| 656 | 2023-08-06 | Erkenschwick Jubilee 2023 | Oer-Erkenschwick GER | 3.3 | Thomas Willemze | Ruben Gideon Koellner | 0-1 | 52 | Open |
| 657 | 2023-08-05 | Erkenschwick Jubilee 2023 | Oer-Erkenschwick GER | 2.4 | Ruben Gideon Koellner | Alexander Krastev | 1/2-1/2 | 18 | Open |
| 658 | 2023-08-04 | Erkenschwick Jubilee 2023 | Oer-Erkenschwick GER | 1.2 | Arthur De Winter | Ruben Gideon Koellner | 1-0 | 60 | Open |
| 659 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 9 | Ruben Gideon Koellner | Marcin Krzyzanowski | 1-0 | 55 | Open |
| 660 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 8 | Ruben Gideon Koellner | Alan Pichot | 0-1 | 31 | Open |
| 661 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 7 | Egor Baskakov | Ruben Gideon Koellner | 1-0 | 60 | Open |
| 662 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 6 | Ruben Gideon Koellner | Roman Zhenetl | 1-0 | 57 | Open |
| 663 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 5 | Samvel Ter-Sahakyan | Ruben Gideon Koellner | 0-1 | 62 | Open |
| 664 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 4 | Ruben Gideon Koellner | Aram Hakobyan | 1-0 | 68 | Open |
| 665 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 3 | Nicolai Maxime Ostensen | Ruben Gideon Koellner | 0-1 | 77 | Open |
| 666 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 2 | Ruben Gideon Koellner | Marcos Rodriguez Fontecha | 1-0 | 72 | Open |
| 667 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 1 | Frederick Waldhausen Gordon | Ruben Gideon Koellner | 1/2-1/2 | 59 | Open |
| 668 | 2023-08-01 | Titled Tue 1st Aug Late | chess.com INT | 1 | Ruben Gideon Koellner | Guillermo Baches Garcia | 1/2-1/2 | 77 | Open |
| 669 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 11 | Ruben Gideon Koellner | Augustinas Bazilius | 1-0 | 69 | Open |
| 670 | 2023-08-01 | Titled Tue 1st Aug Early | chess.com INT | 10 | Yaroslav Remizov | Ruben Gideon Koellner | 1-0 | 40 | Open |
| 671 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 9 | Jan Marn | Ruben Gideon Koellner | 1/2-1/2 | 97 | Open |
| 672 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 8 | Ruben Gideon Koellner | Gustas Morkunas | 1-0 | 54 | Open |
| 673 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 7 | Aleksandar Indjic | Ruben Gideon Koellner | 1-0 | 34 | Open |
| 674 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 6 | Armin Musovic | Ruben Gideon Koellner | 1-0 | 16 | Open |
| 675 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 6 | Vitaliy Bernadskiy | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 676 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 5 | Ruben Gideon Koellner | Kazim Gulamali | 1/2-1/2 | 34 | Open |
| 677 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 5 | Ruben Gideon Koellner | Seyed Khalil Mousavi | 1-0 | 74 | Open |
| 678 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 4 | Daniel Taboas Rodriguez | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 679 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 4 | Ruben Gideon Koellner | Mark Liubarov | 1-0 | 36 | Open |
| 680 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 3 | Aaron Bendayan Claros | Ruben Gideon Koellner | 0-1 | 54 | Open |
| 681 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 3 | Ruben Gideon Koellner | Shant Sargsyan | 0-1 | 50 | Open |
| 682 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 2 | Ruben Gideon Koellner | Stephen Willy | 1-0 | 35 | Open |
| 683 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 2 | Ruben Gideon Koellner | Hrvoje Fajdetic | 1-0 | 34 | Open |
| 684 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 1 | Evgeny V. Melikhov | Ruben Gideon Koellner | 1-0 | 59 | Open |
| 685 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 1 | Maria Jose Campos | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 686 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 11 | Henry Lopez | Ruben Gideon Koellner | 0-1 | 55 | Open |
| 687 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 10 | Ruben Gideon Koellner | Pavel Salman | 1/2-1/2 | 76 | Open |
| 688 | 2023-07-24 | Julius Baer Play-In 2023 | chess.com INT | 3.73 | Ruben Gideon Koellner | Pavel Ponkratov | 0-1 | 34 | Open |
| 689 | 2023-07-24 | Julius Baer Play-In 2023 | chess.com INT | 2.72 | Jon Ludvig Hammer | Ruben Gideon Koellner | 1-0 | 55 | Open |
| 690 | 2023-07-24 | Julius Baer Play-In 2023 | chess.com INT | 1.65 | Benjamin Gledura | Ruben Gideon Koellner | 1-0 | 62 | Open |
| 691 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 9 | Michal Kopczynski | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 692 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 8 | Ruben Gideon Koellner | Vladimir Demin | 1-0 | 35 | Open |
| 693 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 7 | Sultai Chyngyz | Ruben Gideon Koellner | 1-0 | 48 | Open |
| 694 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 6 | Ruben Gideon Koellner | Ritvik Krishnan | 1-0 | 40 | Open |
| 695 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 5 | Daniel Dardha | Ruben Gideon Koellner | 1-0 | 77 | Open |
| 696 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 4 | Rasmus Svane | Ruben Gideon Koellner | 1-0 | 76 | Open |
| 697 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 3 | Ruben Gideon Koellner | Jose Carlos Ibarra Jerez | 1-0 | 42 | Open |
| 698 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 2 | Ruben Gideon Koellner | Alain Prieto Aranguren | 1-0 | 61 | Open |
| 699 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 2 | Ruben Gideon Koellner | Maria Jose Campos | 0-1 | 52 | Open |
| 700 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 1 | Aleksandar Topalov | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 701 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 1 | Vladimir Mikhalsky | Ruben Gideon Koellner | 1-0 | 71 | Open |
| 702 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 11 | Ruben Gideon Koellner | Anton Demchenko | 1-0 | 46 | Open |
| 703 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 10 | Ruben Gideon Koellner | Kukreja Sankalp | 1-0 | 27 | Open |
| 704 | 2023-07-02 | 50th NRW Cup 2023 | Dortmund GER | 9.2 | Ruben Gideon Koellner | Dinara Wagner | 1/2-1/2 | 18 | Open |
| 705 | 2023-07-01 | 50th NRW Cup 2023 | Dortmund GER | 8.4 | Hussain Besou | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 706 | 2023-06-30 | 50th NRW Cup 2023 | Dortmund GER | 7.3 | Ruben Gideon Koellner | Karthik Venkataraman | 1/2-1/2 | 49 | Open |
| 707 | 2023-06-29 | 50th NRW Cup 2023 | Dortmund GER | 6.3 | Arthur De Winter | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 708 | 2023-06-28 | 50th NRW Cup 2023 | Dortmund GER | 5.4 | Ruben Gideon Koellner | Georgios Souleidis | 1-0 | 51 | Open |
| 709 | 2023-06-27 | 50th NRW Cup 2023 | Dortmund GER | 4.2 | Alexander Bagrationi | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 710 | 2023-06-26 | 50th NRW Cup 2023 | Dortmund GER | 3.5 | Ruben Gideon Koellner | Mihail Saltaev | 1-0 | 30 | Open |
| 711 | 2023-06-25 | 50th NRW Cup 2023 | Dortmund GER | 2.1 | Vadym Petrovskiy | Ruben Gideon Koellner | 1/2-1/2 | 34 | Open |
| 712 | 2023-06-24 | 50th NRW Cup 2023 | Dortmund GER | 1.5 | Jana Schneider | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 713 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 9 | Yusuf Eren Kavri | Ruben Gideon Koellner | 1-0 | 56 | Open |
| 714 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 8 | Ruben Gideon Koellner | Vahap Sanal | 0-1 | 38 | Open |
| 715 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 7 | Leon Livaic | Ruben Gideon Koellner | 1/2-1/2 | 54 | Open |
| 716 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 6 | Yagiz Kaan Erdogmus | Ruben Gideon Koellner | 0-1 | 69 | Open |
| 717 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 5 | Ruben Gideon Koellner | Sergey Grigoriants | 1/2-1/2 | 45 | Open |
| 718 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 4 | Ruben Gideon Koellner | Robert Sanchez | 1-0 | 47 | Open |
| 719 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 3 | Juan Sebastian Herrera | Ruben Gideon Koellner | 0-1 | 77 | Open |
| 720 | 2023-06-20 | Titled Tue 20th Jun Early | chess.com INT | 2 | Sai Nirupama Kotepalli | Ruben Gideon Koellner | 1-0 | 62 | Open |
| 721 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 2 | Ruben Gideon Koellner | Aram Hakobyan | 0-1 | 91 | Open |
| 722 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 1 | Maksim Zhukov | Ruben Gideon Koellner | 0-1 | 25 | Open |
| 723 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 7 | Ruben Gideon Koellner | Abdulla Gadimbayli | 0-1 | 75 | Open |
| 724 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 6 | Shawn Rodrigue-Lemieux | Ruben Gideon Koellner | 1-0 | 80 | Open |
| 725 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 5 | Ruben Gideon Koellner | Dmitry Goltsev | 1-0 | 39 | Open |
| 726 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 4 | Ruben Gideon Koellner | Licael Roderick Ticona Rocabado | 1-0 | 43 | Open |
| 727 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 3 | Melih Kaan Can | Ruben Gideon Koellner | 0-1 | 52 | Open |
| 728 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 2 | Ruben Gideon Koellner | Sebastian Marin Posada | 1-0 | 26 | Open |
| 729 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 1 | Jaime Vaglio Munoz | Ruben Gideon Koellner | 1-0 | 67 | Open |
| 730 | 2023-06-13 | Titled Tue 13th Jun Early | chess.com INT | 1 | Zbigniew Wieczorek | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 731 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 7.7 | Ruben Gideon Koellner | Sourath Biswas | 1/2-1/2 | 71 | Open |
| 732 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 6.8 | Harmen Jonkman | Ruben Gideon Koellner | 0-1 | 26 | Open |
| 733 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 5.74 | Dennis Wagner | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 734 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 4.69 | Ruben Gideon Koellner | Leon Luke Mendonca | 0-1 | 68 | Open |
| 735 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 3.79 | Raja Harshit | Ruben Gideon Koellner | 0-1 | 54 | Open |
| 736 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 2.76 | Miguel Santos Ruiz | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 737 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 1.63 | Ruben Gideon Koellner | Igor Kovalenko | 0-1 | 57 | Open |
| 738 | 2023-06-06 | 1st Munich Pfingst-Open A | Munich GER | 9.1 | Anton Demchenko | Ruben Gideon Koellner | 1/2-1/2 | 34 | Open |
| 739 | 2023-06-05 | 1st Munich Pfingst-Open A | Munich GER | 8.4 | Ruben Gideon Koellner | Bharath Subramaniyam H | 1-0 | 41 | Open |
| 740 | 2023-06-05 | 1st Munich Pfingst-Open A | Munich GER | 7.5 | Baadur Jobava | Ruben Gideon Koellner | 0-1 | 22 | Open |
| 741 | 2023-06-04 | 1st Munich Pfingst-Open A | Munich GER | 6.13 | Ruben Gideon Koellner | Frank Bracker | 1-0 | 35 | Open |
| 742 | 2023-06-03 | 1st Munich Pfingst-Open A | Munich GER | 5.14 | Ruben Gideon Koellner | Yelyzaveta Hrebenshchykova | 1/2-1/2 | 37 | Open |
| 743 | 2023-06-03 | 1st Munich Pfingst-Open A | Munich GER | 4.2 | Alexander Motylev | Ruben Gideon Koellner | 1-0 | 49 | Open |
| 744 | 2023-06-02 | 1st Munich Pfingst-Open A | Munich GER | 3.13 | Anna-Maja Kazarian | Ruben Gideon Koellner | 0-1 | 56 | Open |
| 745 | 2023-06-01 | 1st Munich Pfingst-Open A | Munich GER | 2.19 | Ruben Gideon Koellner | Ankush Khandelwal | 1-0 | 39 | Open |
| 746 | 2023-05-31 | 1st Munich Pfingst-Open A | Munich GER | 1.21 | Bennett Schnabel | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 747 | 2023-05-30 | 2nd Laimer Pfingst-Open | Munich GER | 9.2 | Ruben Gideon Koellner | Oleg Korneev | 0-1 | 30 | Open |
| 748 | 2023-05-30 | 2nd Laimer Pfingst-Open | Munich GER | 8.3 | Ruben Gideon Koellner | Souhardo Basak | 1/2-1/2 | 25 | Open |
| 749 | 2023-05-29 | 2nd Laimer Pfingst-Open | Munich GER | 7.1 | Hampus Sorensen | Ruben Gideon Koellner | 1/2-1/2 | 42 | Open |
| 750 | 2023-05-29 | 2nd Laimer Pfingst-Open | Munich GER | 6.4 | Ruben Gideon Koellner | Deepan Chakkravarthy J. | 1-0 | 35 | Open |
| 751 | 2023-05-28 | 2nd Laimer Pfingst-Open | Munich GER | 5.5 | Rudolf Kobl | Ruben Gideon Koellner | 1/2-1/2 | 53 | Open |
| 752 | 2023-05-28 | 2nd Laimer Pfingst-Open | Munich GER | 4.7 | Ruben Gideon Koellner | Juan Rottenwohrer Suarez | 1-0 | 29 | Open |
| 753 | 2023-05-27 | 2nd Laimer Pfingst-Open | Munich GER | 3.2 | Artem Dobrosmyslov | Ruben Gideon Koellner | 1/2-1/2 | 46 | Open |
| 754 | 2023-05-27 | 2nd Laimer Pfingst-Open | Munich GER | 2.7 | Ruben Gideon Koellner | Richard Mueller | 1-0 | 68 | Open |
| 755 | 2023-05-23 | Titled Tue 23rd May Early | chess.com INT | 4 | Ruben Gideon Koellner | Yihe Fu | 0-1 | 28 | Open |
| 756 | 2023-05-23 | Titled Tue 23rd May Early | chess.com INT | 3 | Sergey D. Rodchenkov | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 757 | 2023-05-23 | Titled Tue 23rd May Early | chess.com INT | 2 | Ruben Gideon Koellner | Daniel Rangel | 0-1 | 64 | Open |
| 758 | 2023-05-23 | Titled Tue 23rd May Early | chess.com INT | 1 | Rodrigo Mendoza | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 759 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 9 | Ruben Gideon Koellner | Aziz Degenbaev | 0-1 | 32 | Open |
| 760 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 8 | Zbigniew Pakleza | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 761 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 7 | Ruben Gideon Koellner | Sergey Grigoriants | 1-0 | 32 | Open |
| 762 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 6 | Yaroslav Zherebukh | Ruben Gideon Koellner | 1-0 | 27 | Open |
| 763 | 2023-05-16 | Titled Tue 16th May Late | chess.com INT | 5 | David 1981 Martinez Martin | Ruben Gideon Koellner | 1-0 | 70 | Open |
| 764 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 5 | Ruben Gideon Koellner | Ansh M Shah | 1-0 | 43 | Open |
| 765 | 2023-05-16 | Titled Tue 16th May Late | chess.com INT | 4 | Ruben Gideon Koellner | David Paravyan | 0-1 | 44 | Open |
| 766 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 4 | Ruben Gideon Koellner | Casper Liu | 1-0 | 53 | Open |
| 767 | 2023-05-16 | Titled Tue 16th May Late | chess.com INT | 3 | Nestor Favian Lozano Ramirez | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 768 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 3 | Dariusz Swiercz | Ruben Gideon Koellner | 1-0 | 87 | Open |
| 769 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 2 | Ruben Gideon Koellner | Timur Yonal | 1-0 | 39 | Open |
| 770 | 2023-05-16 | Titled Tue 16th May Late | chess.com INT | 2 | Ruben Gideon Koellner | Eduardo Gerbelli Neto | 1-0 | 51 | Open |
| 771 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 1 | Kapriaga Rian | Ruben Gideon Koellner | 1/2-1/2 | 55 | Open |
| 772 | 2023-05-16 | Titled Tue 16th May Late | chess.com INT | 1 | Alexandr Kostiukov | Ruben Gideon Koellner | 1-0 | 66 | Open |
| 773 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 6 | Alexander Devaev | Ruben Gideon Koellner | 1-0 | 81 | Open |
| 774 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 5 | Ruben Gideon Koellner | Pavel Salman | 0-1 | 50 | Open |
| 775 | 2023-05-09 | Titled Tue 9th May Late | chess.com INT | 4 | Ruben Gideon Koellner | Ari Guz | 0-1 | 39 | Open |
| 776 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 4 | Atousa Pourkashiyan | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 777 | 2023-05-09 | Titled Tue 9th May Late | chess.com INT | 3 | Stanislav Kovalevsky | Ruben Gideon Koellner | 1/2-1/2 | 40 | Open |
| 778 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 3 | Benjamin Bok | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 779 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 2 | Ruben Gideon Koellner | Zsolt Korpics | 1-0 | 31 | Open |
| 780 | 2023-05-09 | Titled Tue 9th May Late | chess.com INT | 2 | Ruben Gideon Koellner | Dmitry Andreikin | 0-1 | 16 | Open |
| 781 | 2023-05-09 | Titled Tue 9th May Late | chess.com INT | 1 | Gary Ng | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 782 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 1 | Ethan Bashkansky | Ruben Gideon Koellner | 1/2-1/2 | 47 | Open |
| 783 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 9 | Ruben Gideon Koellner | Tomasz Jaskolka | 1/2-1/2 | 64 | Open |
| 784 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 8 | Ruben Gideon Koellner | David Paravyan | 0-1 | 54 | Open |
| 785 | 2023-05-02 | Titled Tue 2nd May Late | chess.com INT | 8 | Ruben Gideon Koellner | Alvaro Bayo Milagro | 0-1 | 36 | Open |
| 786 | 2023-05-02 | Titled Tue 2nd May Late | chess.com INT | 7 | Elene Tsotsonava | Ruben Gideon Koellner | 1-0 | 31 | Open |
| 787 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 7 | Aydin Suleymanli | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 788 | 2023-05-02 | Titled Tue 2nd May Late | chess.com INT | 6 | Daniel Gutierrez Olivares | Ruben Gideon Koellner | 0-1 | 67 | Open |
| 789 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 6 | Ruben Gideon Koellner | Yuniesky Quesada Perez | 1-0 | 69 | Open |
| 790 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 5 | Ruben Gideon Koellner | Dashgyn Ibadov | 1-0 | 39 | Open |
| 791 | 2023-05-02 | Titled Tue 2nd May Late | chess.com INT | 5 | Ruben Gideon Koellner | William Olsson | 1-0 | 23 | Open |
| 792 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 4 | Alexander Rustemov | Ruben Gideon Koellner | 1-0 | 99 | Open |
| 793 | 2023-05-02 | Titled Tue 2nd May Late | chess.com INT | 4 | Jean Meunier-Pion | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 794 | 2023-05-02 | Titled Tue 2nd May Late | chess.com INT | 3 | Ruben Gideon Koellner | Gata Kamsky | 0-1 | 42 | Open |
| 795 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 3 | Ruben Gideon Koellner | Irina Petrova | 1-0 | 26 | Open |
| 796 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 2 | Ruben Gideon Koellner | Galina Novikova | 1-0 | 38 | Open |
| 797 | 2023-05-02 | Titled Tue 2nd May Late | chess.com INT | 2 | Ruben Gideon Koellner | Alain Prieto Aranguren | 1-0 | 36 | Open |
| 798 | 2023-05-02 | Titled Tue 2nd May Late | chess.com INT | 1 | Antonio Lopez Del Alamo | Ruben Gideon Koellner | 0-1 | 52 | Open |
| 799 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 1 | Eric Zhang | Ruben Gideon Koellner | 1/2-1/2 | 81 | Open |
| 800 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 11 | Pavel Chernomordik | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 801 | 2023-05-02 | Titled Tue 2nd May Early | chess.com INT | 10 | Artem Dyachuk | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 802 | 2023-05-01 | ChessKid Cup Play-In | chess.com INT | 9.55 | Pavel V. Tregubov | Ruben Gideon Koellner | 1-0 | 126 | Open |
| 803 | 2023-05-01 | ChessKid Cup Play-In | chess.com INT | 8.51 | Mahammad Muradli | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 804 | 2023-05-01 | ChessKid Cup Play-In | chess.com INT | 7.55 | Ruben Gideon Koellner | Anton Demchenko | 1/2-1/2 | 88 | Open |
| 805 | 2023-05-01 | ChessKid Cup Play-In | chess.com INT | 6.63 | Ruben Gideon Koellner | Alexandr Predke | 1-0 | 51 | Open |
| 806 | 2023-05-01 | ChessKid Cup Play-In | chess.com INT | 5.58 | Srinath Narayanan | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 807 | 2023-05-01 | ChessKid Cup Play-In | chess.com INT | 4.52 | Jose Carlos Ibarra Jerez | Ruben Gideon Koellner | 1-0 | 38 | Open |
| 808 | 2023-05-01 | ChessKid Cup Play-In | chess.com INT | 3.65 | Ruben Gideon Koellner | Rudik Makarian | 1-0 | 74 | Open |
| 809 | 2023-05-01 | ChessKid Cup Play-In | chess.com INT | 2.56 | Dmitry Frolyanov | Ruben Gideon Koellner | 1-0 | 53 | Open |
| 810 | 2023-05-01 | ChessKid Cup Play-In | chess.com INT | 1.44 | Ruben Gideon Koellner | Jorden Van Foreest | 0-1 | 71 | Open |
| 811 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 9 | Ruben Gideon Koellner | Matvey Galchenko | 0-1 | 43 | Open |
| 812 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 8 | Jakub Kosakowski | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 813 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 7 | Arsen Kukhmazov | Ruben Gideon Koellner | 1/2-1/2 | 56 | Open |
| 814 | 2023-04-25 | Titled Tue 25th Apr Late | chess.com INT | 6 | Ivan Kubatko | Ruben Gideon Koellner | 1-0 | 30 | Open |
| 815 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 6 | Ruben Gideon Koellner | Alexander Alexikov | 1-0 | 52 | Open |
| 816 | 2023-04-25 | Titled Tue 25th Apr Late | chess.com INT | 5 | Ruben Gideon Koellner | Sebastian Marin Posada | 0-1 | 25 | Open |
| 817 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 5 | Ruben Gideon Koellner | Kanan Hajiyev | 1-0 | 76 | Open |
| 818 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 4 | Aleksandr Shimanov | Ruben Gideon Koellner | 1-0 | 28 | Open |
| 819 | 2023-04-25 | Titled Tue 25th Apr Late | chess.com INT | 4 | Gata Kamsky | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 820 | 2023-04-25 | Titled Tue 25th Apr Late | chess.com INT | 3 | Ruben Gideon Koellner | Maksim Chigaev | 1-0 | 61 | Open |
| 821 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 3 | Augustinas Bazilius | Ruben Gideon Koellner | 0-1 | 48 | Open |
| 822 | 2023-04-25 | Titled Tue 25th Apr Late | chess.com INT | 2 | Gabriel Eidelman | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 823 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 2 | Ruben Gideon Koellner | Aaron Grabinsky | 0-1 | 56 | Open |
| 824 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 1 | Ruben Gideon Koellner | Alfie Onslow | 1-0 | 33 | Open |
| 825 | 2023-04-25 | Titled Tue 25th Apr Late | chess.com INT | 1 | Ruben Gideon Koellner | Todd Bryant | 1/2-1/2 | 26 | Open |
| 826 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 11 | Valentina Gunina | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 827 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 10 | Ruben Gideon Koellner | Aryan Tari | 1-0 | 40 | Open |
| 828 | 2023-04-19 | Mitropa Cup 2023 | Mali Losinj CRO | 9.1 | Ruben Gideon Koellner | Fabian Baenziger | 1/2-1/2 | 25 | Open |
| 829 | 2023-04-18 | Mitropa Cup 2023 | Mali Losinj CRO | 8.1 | Maxime Lagarde | Ruben Gideon Koellner | 1-0 | 50 | Open |
| 830 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 6 | Ruben Gideon Koellner | Thomas Beerdsen | 0-1 | 57 | Open |
| 831 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 5 | Diego Flores | Ruben Gideon Koellner | 1/2-1/2 | 64 | Open |
| 832 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 4 | Ruben Gideon Koellner | Mauricio Vargas Benavides | 1-0 | 30 | Open |
| 833 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 3 | Anderson Esmeraldas Huachi | Ruben Gideon Koellner | 0-1 | 24 | Open |
| 834 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 2 | Ruben Gideon Koellner | Carter Peatman | 1-0 | 47 | Open |
| 835 | 2023-04-17 | Mitropa Cup 2023 | Mali Losinj CRO | 7.1 | Mladen Palac | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 836 | 2023-04-16 | Mitropa Cup 2023 | Mali Losinj CRO | 6.1 | Ruben Gideon Koellner | Adam Kozak | 0-1 | 59 | Open |
| 837 | 2023-04-15 | Mitropa Cup 2023 | Mali Losinj CRO | 5.1 | Luca Jr Moroni | Ruben Gideon Koellner | 1/2-1/2 | 60 | Open |
| 838 | 2023-04-14 | Mitropa Cup 2023 | Mali Losinj CRO | 4.1 | Ruben Gideon Koellner | Lukas Dotzer | 1-0 | 45 | Open |
| 839 | 2023-04-13 | Mitropa Cup 2023 | Mali Losinj CRO | 3.1 | Matej Sebenik | Ruben Gideon Koellner | 1/2-1/2 | 23 | Open |
| 840 | 2023-04-12 | Mitropa Cup 2023 | Mali Losinj CRO | 2.1 | Ruben Gideon Koellner | Samir Sahidi | 0-1 | 75 | Open |
| 841 | 2023-04-11 | Mitropa Cup 2023 | Mali Losinj CRO | 1.1 | Jan Vykouk | Ruben Gideon Koellner | 1/2-1/2 | 50 | Open |
| 842 | 2023-04-02 | Bundesliga 2022-23 | Munich GER | 13.6 | Georg Halvax | Ruben Gideon Koellner | 1/2-1/2 | 31 | Open |
| 843 | 2023-04-01 | Bundesliga 2022-23 | Munich GER | 12.6 | Ruben Gideon Koellner | Alexander Hoenig | 1-0 | 35 | Open |
| 844 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 9 | Harshavardhan G B | Ruben Gideon Koellner | 1/2-1/2 | 101 | Open |
| 845 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 8 | Ruben Gideon Koellner | Vasiliy Korchmar | 1-0 | 33 | Open |
| 846 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 8 | Ruben Gideon Koellner | Arystanbek Urazayev | 0-1 | 91 | Open |
| 847 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 7 | Tykhon Cherniaiev | Ruben Gideon Koellner | 1/2-1/2 | 74 | Open |
| 848 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 7 | Arad Nazari | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 849 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 6 | Egor Baskakov | Ruben Gideon Koellner | 1/2-1/2 | 72 | Open |
| 850 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 6 | Ruben Gideon Koellner | Michael Buscar | 1-0 | 42 | Open |
| 851 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 5 | Ruben Gideon Koellner | Dennis Wagner | 0-1 | 25 | Open |
| 852 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 5 | Ruben Gideon Koellner | Lucas Van Foreest | 0-1 | 42 | Open |
| 853 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 4 | Carlos Daniel Albornoz Cabrera | Ruben Gideon Koellner | 0-1 | 76 | Open |
| 854 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 4 | Pa Iniyan | Ruben Gideon Koellner | 1/2-1/2 | 50 | Open |
| 855 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 3 | Joaquin Jimenez | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 856 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 3 | Marcel Winkels | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 857 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 2 | Ruben Gideon Koellner | Christian Silvestre | 1-0 | 28 | Open |
| 858 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 2 | Ruben Gideon Koellner | Frederik Svane | 0-1 | 82 | Open |
| 859 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 1 | Ruben Gideon Koellner | Alex Bullen | 1-0 | 29 | Open |
| 860 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 1 | Arkadiusz Szmyd | Ruben Gideon Koellner | 1-0 | 76 | Open |
| 861 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 11 | Ruben Gideon Koellner | Balazs Csonka | 1-0 | 46 | Open |
| 862 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 10 | Ruben Gideon Koellner | Ramil Hasangatin | 1/2-1/2 | 82 | Open |
| 863 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 7 | Ruben Gideon Koellner | Anna Shukhman | 0-1 | 27 | Open |
| 864 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 6 | Asa Hoffmann | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 865 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 6 | Ruben Gideon Koellner | Przemyslaw Liwak | 0-1 | 34 | Open |
| 866 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 5 | Lazaro Lorenzo De La Riva | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 867 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 5 | Luis Fernandez Siles | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 868 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 4 | Ruben Gideon Koellner | Leandro Jimenez Jimenez | 1-0 | 59 | Open |
| 869 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 4 | Ruben Gideon Koellner | Sargis A. Manukyan | 0-1 | 52 | Open |
| 870 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 3 | Erigaisi Arjun | Ruben Gideon Koellner | 1-0 | 46 | Open |
| 871 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 3 | Vugar Rasulov | Ruben Gideon Koellner | 1-0 | 57 | Open |
| 872 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 2 | Ruben Gideon Koellner | Andrey Drygalov | 0-1 | 47 | Open |
| 873 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 2 | Ruben Gideon Koellner | Twan Burg | 1-0 | 94 | Open |
| 874 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 1 | Ilya Gruzman | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 875 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 1 | Ruben Gideon Koellner | Alina Semenova | 1-0 | 19 | Open |
| 876 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 8 | Fruzsina Szente Varga | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 877 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 7 | Ivan Yeletsky | Ruben Gideon Koellner | 1-0 | 31 | Open |
| 878 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 6 | Ruben Gideon Koellner | Leon Luke Mendonca | 1-0 | 69 | Open |
| 879 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 5 | Carlos Daniel Albornoz Cabrera | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 880 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 4 | Yi Xu | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 881 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 3 | Ruben Gideon Koellner | Garrett L Smith | 1-0 | 35 | Open |
| 882 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 2 | Ruben Gideon Koellner | Casper Liu | 1-0 | 30 | Open |
| 883 | 2023-03-12 | Chessemy Open A 2023 | Walsrode GER | 9.8 | Ruben Gideon Koellner | Kaloyan Popvasilev | 1-0 | 47 | Open |
| 884 | 2023-03-11 | Chessemy Open A 2023 | Walsrode GER | 8.13 | Aaron Noah Koellner | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 885 | 2023-03-10 | Chessemy Open A 2023 | Walsrode GER | 7.7 | Ruben Gideon Koellner | Jan Pubantz | 0-1 | 31 | Open |
| 886 | 2023-03-09 | Chessemy Open A 2023 | Walsrode GER | 6.2 | Diptayan Ghosh | Ruben Gideon Koellner | 1-0 | 23 | Open |
| 887 | 2023-03-08 | Chessemy Open A 2023 | Walsrode GER | 5.6 | Ruben Gideon Koellner | Makan Rafiee | 1-0 | 35 | Open |
| 888 | 2023-03-07 | Chessemy Open A 2023 | Walsrode GER | 4.1 | Christoph Ramme | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 889 | 2023-03-06 | Chessemy Open A 2023 | Walsrode GER | 3.9 | Matthias Bach | Ruben Gideon Koellner | 1/2-1/2 | 68 | Open |
| 890 | 2023-03-04 | Chessemy Open A 2023 | Walsrode GER | 1.8 | Ruben Gideon Koellner | Anton Weigand | 1-0 | 42 | Open |
| 891 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 9 | Ekaterina Goltseva | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 892 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 8 | Ruben Gideon Koellner | Matvey Galchenko | 0-1 | 61 | Open |
| 893 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 7 | Dimitrios Makridis | Ruben Gideon Koellner | 1-0 | 72 | Open |
| 894 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 7 | Grigory Seletsky | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 895 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 6 | Ruben Gideon Koellner | Leinier Dominguez Perez | 0-1 | 32 | Open |
| 896 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 6 | Ruben Gideon Koellner | Jakub Pulpan | 0-1 | 54 | Open |
| 897 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 5 | Ruben Gideon Koellner | Dimitris Alexakis | 1-0 | 37 | Open |
| 898 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 5 | Ruben Gideon Koellner | Guillermo Llanos | 1-0 | 21 | Open |
| 899 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 4 | Mouhcine Benaddi | Ruben Gideon Koellner | 0-1 | 25 | Open |
| 900 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 4 | Evgeny V. Melikhov | Ruben Gideon Koellner | 1/2-1/2 | 50 | Open |
| 901 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 3 | Ruben Gideon Koellner | Lazaro Pino Perez | 1-0 | 17 | Open |
| 902 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 3 | Arturs Neiksans | Ruben Gideon Koellner | 1-0 | 65 | Open |
| 903 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 2 | Julian Estrada Nieto | Ruben Gideon Koellner | 1/2-1/2 | 77 | Open |
| 904 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 2 | Ruben Gideon Koellner | Luca Jr Moroni | 1/2-1/2 | 88 | Open |
| 905 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 1 | Ruben Gideon Koellner | Felix Rose | 1-0 | 11 | Open |
| 906 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 1 | Ruben Gideon Koellner | Christopher Chabris | 0-1 | 29 | Open |
| 907 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 10 | Konstantin Andreev | Ruben Gideon Koellner | 1-0 | 87 | Open |
| 908 | 2023-02-21 | Baden-Baden Faschingsopen | Baden Baden GER | 9.2 | Ruben Gideon Koellner | David Faerber | 1-0 | 60 | Open |
| 909 | 2023-02-21 | Baden-Baden Faschingsopen | Baden Baden GER | 8.2 | Jonathan Carlstedt | Ruben Gideon Koellner | 1/2-1/2 | 6 | Open |
| 910 | 2023-02-20 | Baden-Baden Faschingsopen | Baden Baden GER | 7.2 | Ruben Gideon Koellner | Veaceslav Cofmann | 1/2-1/2 | 20 | Open |
| 911 | 2023-02-20 | Baden-Baden Faschingsopen | Baden Baden GER | 6.3 | Vadim Cernov | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 912 | 2023-02-19 | Baden-Baden Faschingsopen | Baden Baden GER | 5.4 | Ruben Gideon Koellner | Henrik Cernov | 1-0 | 37 | Open |
| 913 | 2023-02-19 | Baden-Baden Faschingsopen | Baden Baden GER | 4.1 | Andreas Heimann | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 914 | 2023-02-18 | Baden-Baden Faschingsopen | Baden Baden GER | 3.3 | Ruben Gideon Koellner | Martin Hartmann | 1-0 | 42 | Open |
| 915 | 2023-02-18 | Baden-Baden Faschingsopen | Baden Baden GER | 2.4 | Matthias Mattenberger | Ruben Gideon Koellner | 0-1 | 58 | Open |
| 916 | 2023-02-17 | Baden-Baden Faschingsopen | Baden Baden GER | 1.4 | Ruben Gideon Koellner | Georg Voss | 1-0 | 33 | Open |
| 917 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 9 | Gal Drnovsek | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 918 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 8 | Ruben Gideon Koellner | Jaan Ehlvest | 0-1 | 49 | Open |
| 919 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 8 | Ruben Gideon Koellner | Kamil Grycel | 0-1 | 41 | Open |
| 920 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 7 | Ahmad Ahmadzada | Ruben Gideon Koellner | 1-0 | 32 | Open |
| 921 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 7 | Ruben Gideon Koellner | Mathias Womacka | 1-0 | 35 | Open |
| 922 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 6 | Caio Medeiros Poeta | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 923 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 6 | Ruben Gideon Koellner | Joachim Mouhamad | 1-0 | 41 | Open |
| 924 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 5 | Rudik Makarian | Ruben Gideon Koellner | 1-0 | 32 | Open |
| 925 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 5 | Ruben Gideon Koellner | Daniel Rangel | 0-1 | 46 | Open |
| 926 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 4 | Hikaru Nakamura | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 927 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 4 | Augustinas Bazilius | Ruben Gideon Koellner | 0-1 | 89 | Open |
| 928 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 3 | Ruben Gideon Koellner | Michael Fernandez | 1-0 | 22 | Open |
| 929 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 3 | Ruben Gideon Koellner | Blazej Grot | 1-0 | 54 | Open |
| 930 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 2 | Javier Freile Martin | Ruben Gideon Koellner | 0-1 | 59 | Open |
| 931 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 2 | Ivan Kalajzic | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 932 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 1 | Ruben Gideon Koellner | Fruzsina Szente Varga | 0-1 | 40 | Open |
| 933 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 1 | Ruben Gideon Koellner | Hrvoje Fajdetic | 0-1 | 36 | Open |
| 934 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 11 | Ruben Gideon Koellner | Augustinas Bazilius | 0-1 | 57 | Open |
| 935 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 10 | Attila Jr. Forgacs | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 936 | 2023-02-07 | Titled Tue 7th Feb Late | chess.com INT | 8 | Ruben Gideon Koellner | Roman Yanchenko | 0-1 | 50 | Open |
| 937 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 8 | Ruben Gideon Koellner | Tomasz Jaskolka | 0-1 | 28 | Open |
| 938 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 7 | Roy Vagman | Ruben Gideon Koellner | 0-1 | 27 | Open |
| 939 | 2023-02-07 | Titled Tue 7th Feb Late | chess.com INT | 7 | Marco Riehle | Ruben Gideon Koellner | 1/2-1/2 | 67 | Open |
| 940 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 6 | Davide Podetti | Ruben Gideon Koellner | 1-0 | 31 | Open |
| 941 | 2023-02-07 | Titled Tue 7th Feb Late | chess.com INT | 6 | Ruben Gideon Koellner | Blazej Grot | 1-0 | 91 | Open |
| 942 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 5 | Ruben Gideon Koellner | Anna Jakubowska | 1/2-1/2 | 48 | Open |
| 943 | 2023-02-07 | Titled Tue 7th Feb Late | chess.com INT | 5 | Alan Pichot | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 944 | 2023-02-07 | Titled Tue 7th Feb Late | chess.com INT | 4 | Ruben Gideon Koellner | Justin Sarkar | 1-0 | 38 | Open |
| 945 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 4 | Ruben Gideon Koellner | Ihor Samunenkov | 0-1 | 23 | Open |
| 946 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 3 | Cem Kaan Gokerkan | Ruben Gideon Koellner | 1/2-1/2 | 69 | Open |
| 947 | 2023-02-07 | Titled Tue 7th Feb Late | chess.com INT | 3 | Juan David Becerra | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 948 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 2 | Ruben Gideon Koellner | Miroslav Simonovic | 1-0 | 52 | Open |
| 949 | 2023-02-07 | Titled Tue 7th Feb Late | chess.com INT | 2 | Ruben Gideon Koellner | Olexandr Bortnyk | 0-1 | 28 | Open |
| 950 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 1 | Aleksandar Topalov | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 951 | 2023-02-07 | Titled Tue 7th Feb Late | chess.com INT | 1 | Hrvoje Fajdetic | Ruben Gideon Koellner | 0-1 | 59 | Open |
| 952 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 9 | Ivan Kochiev | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 953 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 9 | Zbigniew Pakleza | Ruben Gideon Koellner | 1/2-1/2 | 68 | Open |
| 954 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 8 | Antonio Carlos Bambino Filho | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 955 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 8 | Ruben Gideon Koellner | Claudius-Thomas Gottstein | 1-0 | 36 | Open |
| 956 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 7 | Erik Ronka | Ruben Gideon Koellner | 1-0 | 56 | Open |
| 957 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 7 | Ruben Gideon Koellner | Oleg Papayan | 1-0 | 29 | Open |
| 958 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 6 | Ioannis Kalogeris | Ruben Gideon Koellner | 1/2-1/2 | 92 | Open |
| 959 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 6 | Ruben Gideon Koellner | Frank Buchenau | 1-0 | 41 | Open |
| 960 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 5 | Ruben Gideon Koellner | Alexandr Predke | 0-1 | 58 | Open |
| 961 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 5 | Ruben Gideon Koellner | Kamil Grycel | 0-1 | 33 | Open |
| 962 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 4 | Ruben Gideon Koellner | Orest Vovk | 1-0 | 67 | Open |
| 963 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 4 | Maria Florencia Fernandez | Ruben Gideon Koellner | 0-1 | 48 | Open |
| 964 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 3 | David Anton Guijarro | Ruben Gideon Koellner | 1-0 | 33 | Open |
| 965 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 3 | Vahe Danielyan | Ruben Gideon Koellner | 1-0 | 50 | Open |
| 966 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 2 | Andrew Tang | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 967 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 2 | Fabiano Caruana | Ruben Gideon Koellner | 1/2-1/2 | 77 | Open |
| 968 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 1 | Ruben Gideon Koellner | Felix Rose | 1-0 | 30 | Open |
| 969 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 1 | Ruben Gideon Koellner | Pablo Alexander Ruiz Aguilar | 1-0 | 35 | Open |
| 970 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 11 | Ruben Gideon Koellner | David Torres Dominguez | 1-0 | 51 | Open |
| 971 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 10 | Egor Baskakov | Ruben Gideon Koellner | 1-0 | 27 | Open |
| 972 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 10 | Ruben Gideon Koellner | Olga Girya | 0-1 | 74 | Open |
| 973 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 8 | Ruben Gideon Koellner | Sergey Kim | 1/2-1/2 | 69 | Open |
| 974 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 7 | Aleksandar Indjic | Ruben Gideon Koellner | 1-0 | 23 | Open |
| 975 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 6 | Ruben Gideon Koellner | Evgenij Novikov | 1-0 | 52 | Open |
| 976 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 5 | Ruben Gideon Koellner | Kanan Hajiyev | 1-0 | 51 | Open |
| 977 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 4 | David Gasparyan | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 978 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 3 | Dmitry Andreikin | Ruben Gideon Koellner | 1/2-1/2 | 68 | Open |
| 979 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 2 | Ruben Gideon Koellner | Matthias Bluebaum | 1/2-1/2 | 59 | Open |
| 980 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 1 | Ruben Gideon Koellner | Jens Nebel | 1-0 | 60 | Open |
| 981 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 6 | Mikhail V. Kuznetsov | Ruben Gideon Koellner | 1-0 | 28 | Open |
| 982 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 5 | Ruben Gideon Koellner | Guha Mitrabha | 0-1 | 63 | Open |
| 983 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 4 | Alex Golding | Ruben Gideon Koellner | 0-1 | 53 | Open |
| 984 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 3 | Ruben Gideon Koellner | Gata Kamsky | 0-1 | 27 | Open |
| 985 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 2 | Jaime Vaglio Munoz | Ruben Gideon Koellner | 0-1 | 62 | Open |
| 986 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 1 | Ruben Gideon Koellner | Elvin Wilson | 1-0 | 54 | Open |
| 987 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 9 | Ruben Gideon Koellner | Jakub Kosakowski | 0-1 | 59 | Open |
| 988 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 8 | Martyn Kravtsiv | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 989 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 7 | Ruben Gideon Koellner | Etienne Bacrot | 1-0 | 66 | Open |
| 990 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 6 | Ruben Gideon Koellner | Igor L. Vakhlamov | 1-0 | 61 | Open |
| 991 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 5 | Harsha Bharathakoti | Ruben Gideon Koellner | 0-1 | 72 | Open |
| 992 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 4 | Ruben Gideon Koellner | Egor Baskakov | 1/2-1/2 | 53 | Open |
| 993 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 3 | Assel Lesbekova | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 994 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 2 | Ruben Gideon Koellner | Evgeny Tomashevsky | 1/2-1/2 | 43 | Open |
| 995 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 1 | Jan Marn | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 996 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 11 | Samvel Ter-Sahakyan | Ruben Gideon Koellner | 1-0 | 24 | Open |
| 997 | 2023-01-10 | Titled Tue 10th Jan Early | chess.com INT | 10 | Ruben Gideon Koellner | Arsen Kukhmazov | 1/2-1/2 | 55 | Open |
| 998 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 7 | Ruben Gideon Koellner | Afruza Khamdamova | 0-1 | 31 | Open |
| 999 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 6 | Matei-Valeriu Mogirzan | Ruben Gideon Koellner | 1-0 | 27 | Open |
| 1000 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 5 | Ruben Gideon Koellner | Bardiya Daneshvar | 0-1 | 50 | Open |
| 1001 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 4 | Aisen Mestnikov | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 1002 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 3 | Ruben Gideon Koellner | Srinath Narayanan | 0-1 | 39 | Open |
| 1003 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 2 | Kapriaga Rian | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 1004 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 1 | Ruben Gideon Koellner | Adham Fawzy | 1-0 | 47 | Open |
| 1005 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 9 | Sergei Zhigalko | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 1006 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 8 | Kacper Tomaszewski | Ruben Gideon Koellner | 1/2-1/2 | 82 | Open |
| 1007 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 7 | Ruben Gideon Koellner | Bahadir Ozen | 1/2-1/2 | 46 | Open |
| 1008 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 6 | Ruben Gideon Koellner | David Paravyan | 1/2-1/2 | 53 | Open |
| 1009 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 5 | Danila Bilan | Ruben Gideon Koellner | 0-1 | 61 | Open |
| 1010 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 4 | Ruben Gideon Koellner | Lela Javakhishvili | 1-0 | 35 | Open |
| 1011 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 3 | Levente Miszler | Ruben Gideon Koellner | 1/2-1/2 | 55 | Open |
| 1012 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 2 | Ruben Gideon Koellner | Jesus Martin Duque | 1-0 | 36 | Open |
| 1013 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 1 | Wojciech Przybylski | Ruben Gideon Koellner | 1-0 | 57 | Open |
| 1014 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 11 | Eduardo Jesus Mendez Fortes | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 1015 | 2022-12-13 | Titled Tue 13th Dec Early | chess.com INT | 10 | Ruben Gideon Koellner | Alberto Santos Flores | 1-0 | 24 | Open |
| 1016 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 9 | Ruben Gideon Koellner | Dmitry Andreikin | 0-1 | 59 | Open |
| 1017 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 8 | Tomasz Jaskolka | Ruben Gideon Koellner | 0-1 | 34 | Open |
| 1018 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 7 | Bahadir Ozen | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 1019 | 2022-12-06 | Titled Tue 6th Dec Late | chess.com INT | 7 | Artem Omelja | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 1020 | 2022-12-06 | Titled Tue 6th Dec Late | chess.com INT | 6 | Ruben Gideon Koellner | Serafin Moral Garcia | 1/2-1/2 | 77 | Open |
| 1021 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 6 | Ruben Gideon Koellner | Peter Sadilek | 1-0 | 46 | Open |
| 1022 | 2022-12-06 | Titled Tue 6th Dec Late | chess.com INT | 5 | Christopher Woojin Yoo | Ruben Gideon Koellner | 1-0 | 24 | Open |
| 1023 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 5 | Ruben Gideon Koellner | Bardiya Daneshvar | 0-1 | 76 | Open |
| 1024 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 4 | Attila Jr. Forgacs | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 1025 | 2022-12-06 | Titled Tue 6th Dec Late | chess.com INT | 4 | Charles H Storey | Ruben Gideon Koellner | 0-1 | 65 | Open |
| 1026 | 2022-12-06 | Titled Tue 6th Dec Late | chess.com INT | 3 | Ruben Gideon Koellner | Yuniesky Quesada Perez | 0-1 | 32 | Open |
| 1027 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 3 | Ruben Gideon Koellner | Nijat Abasov | 1/2-1/2 | 68 | Open |
| 1028 | 2022-12-06 | Titled Tue 6th Dec Late | chess.com INT | 2 | 2605767 | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1029 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 2 | Tuan Minh Le | Ruben Gideon Koellner | 1/2-1/2 | 107 | Open |
| 1030 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 1 | Antonio Lopez Del Alamo | Ruben Gideon Koellner | 0-1 | 34 | Open |
| 1031 | 2022-12-06 | Titled Tue 6th Dec Late | chess.com INT | 1 | Ruben Gideon Koellner | David Bernat | 1-0 | 47 | Open |
| 1032 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 11 | Maksim Chigaev | Ruben Gideon Koellner | 1-0 | 45 | Open |
| 1033 | 2022-12-06 | Titled Tue 6th Dec Early | chess.com INT | 10 | Julian Estrada Nieto | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 1034 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 9 | Ruben Gideon Koellner | Alexandros Papasimakopoulos | 1-0 | 45 | Open |
| 1035 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 9 | Ruben Gideon Koellner | Roman Kezin | 0-1 | 24 | Open |
| 1036 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 8 | Zozek Salah Mohammed | Ruben Gideon Koellner | 1/2-1/2 | 87 | Open |
| 1037 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 8 | Mikhail Chernov | Ruben Gideon Koellner | 0-1 | 34 | Open |
| 1038 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 7 | Ruben Gideon Koellner | Velimir Ivic | 0-1 | 87 | Open |
| 1039 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 7 | Ruben Gideon Koellner | Igor Kowalski | 0-1 | 76 | Open |
| 1040 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 6 | Jose Carlos Ibarra Jerez | Ruben Gideon Koellner | 0-1 | 67 | Open |
| 1041 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 6 | Vladimir Mikhalsky | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1042 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 5 | Ruben Gideon Koellner | Alexander Rustemov | 0-1 | 68 | Open |
| 1043 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 5 | Ruben Gideon Koellner | Francesco Bettalli | 1-0 | 36 | Open |
| 1044 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 4 | Alban Delorme | Ruben Gideon Koellner | 0-1 | 74 | Open |
| 1045 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 4 | Olexandr Bortnyk | Ruben Gideon Koellner | 1-0 | 81 | Open |
| 1046 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 3 | Florian Gatterer | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 1047 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 3 | Ruben Gideon Koellner | Ruslan Kashtanov | 1-0 | 63 | Open |
| 1048 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 2 | Raunak Sadhwani | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 1049 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 2 | Ruben Gideon Koellner | Jorden Van Foreest | 0-1 | 42 | Open |
| 1050 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 1 | Wilfredo Sariego Figueredo | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1051 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 1 | Ruben Gideon Koellner | Nurai Sovetbekova | 1-0 | 37 | Open |
| 1052 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 11 | Zachary Tanenbaum | Ruben Gideon Koellner | 1-0 | 49 | Open |
| 1053 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 11 | Ruben Gideon Koellner | Kapriaga Rian | 1-0 | 46 | Open |
| 1054 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 10 | Rushan Bogaudinov | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 1055 | 2022-11-29 | Titled Tue 29th Nov Late | chess.com INT | 10 | Luke C Miller | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 1056 | 2022-11-22 | Titled Tue 22nd Nov Late | chess.com INT | 6 | Ruben Gideon Koellner | Vuk Djordjevic | 0-1 | 30 | Open |
| 1057 | 2022-11-22 | Titled Tue 22nd Nov Late | chess.com INT | 5 | Eray Kilic | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 1058 | 2022-11-22 | Titled Tue 22nd Nov Late | chess.com INT | 4 | Vojtech Plat | Ruben Gideon Koellner | 0-1 | 18 | Open |
| 1059 | 2022-11-22 | Titled Tue 22nd Nov Late | chess.com INT | 3 | Ruben Gideon Koellner | Evan Ai | 1-0 | 60 | Open |
| 1060 | 2022-11-22 | Titled Tue 22nd Nov Late | chess.com INT | 2 | Ruben Gideon Koellner | Sergei Zhigalko | 0-1 | 16 | Open |
| 1061 | 2022-11-22 | Titled Tue 22nd Nov Late | chess.com INT | 1 | Luis Migu Floresvillar Gonzalez | Ruben Gideon Koellner | 0-1 | 31 | Open |
| 1062 | 2022-11-13 | 25th OIBM 2022 | Tegernsee GER | 9.14 | Daniel Kristoferitsch | Ruben Gideon Koellner | 1/2-1/2 | 81 | Open |
| 1063 | 2022-11-12 | 25th OIBM 2022 | Tegernsee GER | 8.18 | Ruben Gideon Koellner | Kemal Bashirov | 1-0 | 21 | Open |
| 1064 | 2022-11-11 | 25th OIBM 2022 | Tegernsee GER | 7.16 | Lars Goldbeck | Ruben Gideon Koellner | 1/2-1/2 | 84 | Open |
| 1065 | 2022-11-10 | 25th OIBM 2022 | Tegernsee GER | 6.2 | Ruben Gideon Koellner | Georg Seisenberger | 1-0 | 39 | Open |
| 1066 | 2022-11-09 | 25th OIBM 2022 | Tegernsee GER | 5.2 | Bernhard Nagel | Ruben Gideon Koellner | 1/2-1/2 | 83 | Open |
| 1067 | 2022-11-08 | 25th OIBM 2022 | Tegernsee GER | 4.14 | Ruben Gideon Koellner | Vitus Lederle | 1/2-1/2 | 70 | Open |
| 1068 | 2022-11-07 | 25th OIBM 2022 | Tegernsee GER | 3.2 | Anton Demchenko | Ruben Gideon Koellner | 1/2-1/2 | 56 | Open |
| 1069 | 2022-11-06 | 25th OIBM 2022 | Tegernsee GER | 2.19 | Ruben Gideon Koellner | Florian Duerr | 1-0 | 58 | Open |
| 1070 | 2022-11-05 | 25th OIBM 2022 | Tegernsee GER | 1.23 | Christoph Staeblein | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 1071 | 2022-10-25 | Titled Tue 25th Oct Late | chess.com INT | 9 | Drasko Boskovic | Ruben Gideon Koellner | 1-0 | 32 | Open |
| 1072 | 2022-10-25 | Titled Tue 25th Oct Late | chess.com INT | 8 | Rudik Makarian | Ruben Gideon Koellner | 1-0 | 85 | Open |
| 1073 | 2022-10-25 | Titled Tue 25th Oct Late | chess.com INT | 7 | Ruben Gideon Koellner | Kevin Bordi | 0-1 | 47 | Open |
| 1074 | 2022-10-25 | Titled Tue 25th Oct Late | chess.com INT | 6 | Meri Arabidze | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 1075 | 2022-10-25 | Titled Tue 25th Oct Late | chess.com INT | 5 | Milosz Szpar | Ruben Gideon Koellner | 0-1 | 31 | Open |
| 1076 | 2022-10-25 | Titled Tue 25th Oct Late | chess.com INT | 4 | Ruben Gideon Koellner | Ansh M Shah | 1-0 | 45 | Open |
| 1077 | 2022-10-25 | Titled Tue 25th Oct Late | chess.com INT | 3 | Ramyres Santana Coelho | Ruben Gideon Koellner | 1/2-1/2 | 53 | Open |
| 1078 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 2 | Ruben Gideon Koellner | Michel Saucey | 0-1 | 37 | Open |
| 1079 | 2022-10-25 | Titled Tue 25th Oct Late | chess.com INT | 2 | Ruben Gideon Koellner | Vladimir Belous | 0-1 | 40 | Open |
| 1080 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 1 | Gisela Roque Sola | Ruben Gideon Koellner | 1-0 | 27 | Open |
| 1081 | 2022-10-25 | Titled Tue 25th Oct Late | chess.com INT | 1 | Ruben Gideon Koellner | Neeraj Harish | 1-0 | 18 | Open |
| 1082 | 2022-10-23 | Bundesliga 2022-23 | Munich GER | 2.4 | Marc Morgunov | Ruben Gideon Koellner | 1/2-1/2 | 22 | Open |
| 1083 | 2022-10-22 | Bundesliga 2022-23 | Munich GER | 1.4 | Ruben Gideon Koellner | Ruben Lutz | 1-0 | 49 | Open |
| 1084 | 2022-10-18 | Titled Tue 18th Oct Early | chess.com INT | 5 | Mikhail V. Kuznetsov | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 1085 | 2022-10-18 | Titled Tue 18th Oct Early | chess.com INT | 4 | Ruben Gideon Koellner | Grigoriy Oparin | 0-1 | 49 | Open |
| 1086 | 2022-10-18 | Titled Tue 18th Oct Early | chess.com INT | 3 | Ruben Gideon Koellner | Antonio Pedro Freixial Vasques | 1-0 | 18 | Open |
| 1087 | 2022-10-18 | Titled Tue 18th Oct Early | chess.com INT | 2 | Daniel Jones | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 1088 | 2022-10-18 | Titled Tue 18th Oct Early | chess.com INT | 1 | Ruben Gideon Koellner | Talaibek Osmonbekov | 0-1 | 38 | Open |
| 1089 | 2022-10-11 | Titled Tue 11th Oct Late | chess.com INT | 6 | Alexey Reshetnikov | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 1090 | 2022-10-11 | Titled Tue 11th Oct Late | chess.com INT | 5 | Vitaliy Bernadskiy | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 1091 | 2022-10-11 | Titled Tue 11th Oct Late | chess.com INT | 4 | Ruben Gideon Koellner | Miragha Aghayev | 1-0 | 31 | Open |
| 1092 | 2022-10-11 | Titled Tue 11th Oct Late | chess.com INT | 3 | Jemal Ovezdurdyyeva | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 1093 | 2022-10-11 | Titled Tue 11th Oct Late | chess.com INT | 2 | Ruben Gideon Koellner | Aydin Suleymanli | 0-1 | 52 | Open |
| 1094 | 2022-10-11 | Titled Tue 11th Oct Late | chess.com INT | 1 | Ruben Gideon Koellner | Oscar Humberto Ardila | 1-0 | 75 | Open |
| 1095 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 9 | Kacper Zochowski | Ruben Gideon Koellner | 1/2-1/2 | 93 | Open |
| 1096 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 8 | Ruben Gideon Koellner | Francisco Silva Gonzalez | 1-0 | 65 | Open |
| 1097 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 7 | Michael Buscar | Ruben Gideon Koellner | 1/2-1/2 | 50 | Open |
| 1098 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 6 | Ruben Gideon Koellner | Wesley So | 0-1 | 87 | Open |
| 1099 | 2022-09-27 | Titled Tue 27th Sep Early | chess.com INT | 5 | Ruben Gideon Koellner | Anastasios Mihailidis | 1/2-1/2 | 65 | Open |
| 1100 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 5 | Ruben Gideon Koellner | Davi Sulzbacher Goncalves | 1-0 | 35 | Open |
| 1101 | 2022-09-27 | Titled Tue 27th Sep Early | chess.com INT | 4 | Marius Deuer | Ruben Gideon Koellner | 1-0 | 33 | Open |
| 1102 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 4 | Hrant Melkumyan | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 1103 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 3 | Julian Estrada Nieto | Ruben Gideon Koellner | 0-1 | 30 | Open |
| 1104 | 2022-09-27 | Titled Tue 27th Sep Early | chess.com INT | 3 | Oleg Kislov | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 1105 | 2022-09-27 | Titled Tue 27th Sep Early | chess.com INT | 2 | Ruben Gideon Koellner | Nils Grandelius | 0-1 | 52 | Open |
| 1106 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 2 | Ruben Gideon Koellner | Mykola Bortnyk | 0-1 | 30 | Open |
| 1107 | 2022-09-27 | Titled Tue 27th Sep Early | chess.com INT | 1 | Florian Gatterer | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 1108 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 1 | Ruben Gideon Koellner | Ieuan C Ward | 1-0 | 32 | Open |
| 1109 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 11 | Viacheslav Mikhailov | Ruben Gideon Koellner | 1-0 | 34 | Open |
| 1110 | 2022-09-27 | Titled Tue 27th Sep Late | chess.com INT | 10 | Ruben Gideon Koellner | Piotr Mickiewicz | 1-0 | 39 | Open |
| 1111 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 9 | Oleksandr Yurovskykh | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 1112 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 8 | Ruben Gideon Koellner | Davi Sulzbacher Goncalves | 1-0 | 43 | Open |
| 1113 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 7 | Eduardo Jesus Mendez Fortes | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 1114 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 6 | Alexander Alexikov | Ruben Gideon Koellner | 1-0 | 60 | Open |
| 1115 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 5 | Ruben Gideon Koellner | Nisim Iliaguev | 0-1 | 51 | Open |
| 1116 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 4 | Pedro Filipe Rego | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 1117 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 3 | Daniel Kazmaier | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1118 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 2 | Ruben Gideon Koellner | Aleksandr Lenderman | 0-1 | 59 | Open |
| 1119 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 1 | Ruben Gideon Koellner | Andriy Prydun | 1-0 | 17 | Open |
| 1120 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 11 | Jens Hirneise | Ruben Gideon Koellner | 0-1 | 63 | Open |
| 1121 | 2022-09-20 | Titled Tue 20th Sep Late | chess.com INT | 10 | Ruben Gideon Koellner | Leonardo Tristan | 0-1 | 26 | Open |
| 1122 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 6 | Ruben Gideon Koellner | Vsevolod Ovchinnikov | 0-1 | 20 | Open |
| 1123 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 5 | Jose Gabriel Cardoso Cardoso | Ruben Gideon Koellner | 1-0 | 86 | Open |
| 1124 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 4 | Abhimanyu Puranik | Ruben Gideon Koellner | 0-1 | 49 | Open |
| 1125 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 3 | Ruben Gideon Koellner | Anton Demchenko | 0-1 | 34 | Open |
| 1126 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 2 | Benjamin Bok | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 1127 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 1 | Ruben Gideon Koellner | Julien Sohier | 1-0 | 54 | Open |
| 1128 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 9 | Andres Carrasco Miranda | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 1129 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 8 | Ruben Gideon Koellner | Adan Rios Escobar | 1-0 | 24 | Open |
| 1130 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 7 | Lewis Martin | Ruben Gideon Koellner | 1/2-1/2 | 60 | Open |
| 1131 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 6 | Ruben Gideon Koellner | Lucian-Costin Miron | 0-1 | 41 | Open |
| 1132 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 5 | Ruben Gideon Koellner | Alban Delorme | 1-0 | 31 | Open |
| 1133 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 4 | David Paravyan | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 1134 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 3 | Roberto Junio Brito Molina | Ruben Gideon Koellner | 1/2-1/2 | 77 | Open |
| 1135 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 2 | Ruben Gideon Koellner | Luis Fernandez Siles | 1-0 | 25 | Open |
| 1136 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 1 | Andrew Tang | Ruben Gideon Koellner | 1-0 | 26 | Open |
| 1137 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 10 | Shah Dev | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 1138 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 9 | Ruben Gideon Koellner | Nikolai Vlassov | 0-1 | 33 | Open |
| 1139 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 8 | Ruben Gideon Koellner | Harsh Suresh | 1-0 | 51 | Open |
| 1140 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 7 | Jan Malek | Ruben Gideon Koellner | 1-0 | 60 | Open |
| 1141 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 6 | Ruben Gideon Koellner | Anatole Vlachos | 1-0 | 54 | Open |
| 1142 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 5 | Han Schut | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 1143 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 4 | Carlos Jose Pinero Rodriguez | Ruben Gideon Koellner | 0-1 | 52 | Open |
| 1144 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 3 | Ruben Gideon Koellner | Asa Hoffmann | 0-1 | 32 | Open |
| 1145 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 2 | Volkan Yirik | Ruben Gideon Koellner | 1/2-1/2 | 58 | Open |
| 1146 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 1 | Ruben Gideon Koellner | Aleksandr Lenderman | 0-1 | 26 | Open |
| 1147 | 2022-08-23 | Titled Tue 23rd Aug Early | chess.com INT | 10 | Pawel Dudzinski | Ruben Gideon Koellner | 1-0 | 49 | Open |
| 1148 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 8 | Ruben Gideon Koellner | Atanas Dimitrov | 1-0 | 54 | Open |
| 1149 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 7 | Luis Fernandez Siles | Ruben Gideon Koellner | 0-1 | 52 | Open |
| 1150 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 6 | Ruben Gideon Koellner | Denis Garrido | 1-0 | 34 | Open |
| 1151 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 5 | Anish Vivekananthan | Ruben Gideon Koellner | 1-0 | 65 | Open |
| 1152 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 4 | Galina Novikova | Ruben Gideon Koellner | 0-1 | 20 | Open |
| 1153 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 3 | Ruben Gideon Koellner | Jose Carlos Ibarra Jerez | 0-1 | 46 | Open |
| 1154 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 2 | Ruben Gideon Koellner | Martyn Kravtsiv | 0-1 | 26 | Open |
| 1155 | 2022-08-02 | Titled Tue 2nd Aug Late | chess.com INT | 1 | Robby Kevlishvili | Ruben Gideon Koellner | 0-1 | 88 | Open |
| 1156 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 9 | Ruben Gideon Koellner | Kerem Tinmaz | 0-1 | 29 | Open |
| 1157 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 8 | Ruben Gideon Koellner | Daniel Rangel | 0-1 | 65 | Open |
| 1158 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 8 | Ruben Gideon Koellner | Samuel Fieberg | 0-1 | 33 | Open |
| 1159 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 7 | Uriel Vazquez Espino | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 1160 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 7 | Ruben Gideon Koellner | Hector Luis Gil Alba | 0-1 | 33 | Open |
| 1161 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 6 | Harshavardhan G B | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 1162 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 6 | Sipke Ernst | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 1163 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 5 | Guha Mitrabha | Ruben Gideon Koellner | 1-0 | 80 | Open |
| 1164 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 5 | Ruben Gideon Koellner | Richard Stalmach | 1-0 | 36 | Open |
| 1165 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 4 | Martin Horcajuelo Rocamora | Ruben Gideon Koellner | 1/2-1/2 | 67 | Open |
| 1166 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 4 | Ruben Gideon Koellner | Dmitry Andreikin | 0-1 | 42 | Open |
| 1167 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 3 | Ruben Gideon Koellner | Gyula Pap | 1-0 | 31 | Open |
| 1168 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 3 | Ruben Gideon Koellner | Richard Shtivelband | 1-0 | 45 | Open |
| 1169 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 2 | David W L Howell | Ruben Gideon Koellner | 1-0 | 60 | Open |
| 1170 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 2 | Abtin Atakhan | Ruben Gideon Koellner | 0-1 | 62 | Open |
| 1171 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 1 | David Levine | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 1172 | 2022-07-26 | Titled Tue 26th Jul Late | chess.com INT | 1 | Ruben Gideon Koellner | Enrique Butti | 1/2-1/2 | 56 | Open |
| 1173 | 2022-07-19 | Titled Tue 19th Jul Early | chess.com INT | 2 | Ruben Gideon Koellner | Wagner Peixoto Guimaraes | 0-1 | 63 | Open |
| 1174 | 2022-07-19 | Titled Tue 19th Jul Early | chess.com INT | 1 | Saadat Bashirli | Ruben Gideon Koellner | 1-0 | 60 | Open |
| 1175 | 2022-07-18 | TCh-EUR Youth U18 2022 | Thessaloniki GRE | 7.2 | Ruben Gideon Koellner | Marius Deuer | 1/2-1/2 | 44 | Open |
| 1176 | 2022-07-17 | TCh-EUR Youth U18 2022 | Thessaloniki GRE | 6.3 | Stefan Tadic | Ruben Gideon Koellner | 1/2-1/2 | 57 | Open |
| 1177 | 2022-07-16 | TCh-EUR Youth U18 2022 | Thessaloniki GRE | 5.5 | Ruben Gideon Koellner | Nicodim-Cosmin Stepanencu | 1-0 | 30 | Open |
| 1178 | 2022-07-15 | TCh-EUR Youth U18 2022 | Thessaloniki GRE | 4.2 | Maciej Czopor | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 1179 | 2022-07-14 | TCh-EUR Youth U18 2022 | Thessaloniki GRE | 3.4 | Andraz Gregoric | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 1180 | 2022-07-13 | TCh-EUR Youth U18 2022 | Thessaloniki GRE | 2.6 | Ruben Gideon Koellner | Valentyn Prokofiev | 1/2-1/2 | 101 | Open |
| 1181 | 2022-07-12 | TCh-EUR Youth U18 2022 | Thessaloniki GRE | 1.1 | Jan Marn | Ruben Gideon Koellner | 1-0 | 54 | Open |
| 1182 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 3 | Ruben Gideon Koellner | Shawn Martinez | 0-1 | 22 | Open |
| 1183 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 2 | Ruben Gideon Koellner | Nitzan Steinberg | 0-1 | 27 | Open |
| 1184 | 2022-06-28 | Titled Tue 28th Jun Late | chess.com INT | 1 | Rene Phillips | Ruben Gideon Koellner | 0-1 | 62 | Open |
| 1185 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 9 | Ruben Gideon Koellner | Mitch Fishbein | 1-0 | 27 | Open |
| 1186 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 8 | Hristos Alexiadis | Ruben Gideon Koellner | 1-0 | 50 | Open |
| 1187 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 7 | Ruben Gideon Koellner | Zachary Tanenbaum | 1/2-1/2 | 30 | Open |
| 1188 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 6 | Galina Novikova | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 1189 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 5 | Ruben Gideon Koellner | Andriy Prydun | 1-0 | 31 | Open |
| 1190 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 4 | Domen Tisaj | Ruben Gideon Koellner | 1-0 | 30 | Open |
| 1191 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 4 | Ruben Gideon Koellner | Leon Luke Mendonca | 0-1 | 51 | Open |
| 1192 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 3 | Bryan Weisz | Ruben Gideon Koellner | 1/2-1/2 | 58 | Open |
| 1193 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 3 | Ruben Gideon Koellner | Jorge Carlos Antonio | 1-0 | 47 | Open |
| 1194 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 2 | Artiom Samsonkin | Ruben Gideon Koellner | 1-0 | 48 | Open |
| 1195 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 2 | Ruben Gideon Koellner | Zbigniew Pakleza | 0-1 | 58 | Open |
| 1196 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 1 | Ruben Gideon Koellner | 4489270234334223919 | 1-0 | 14 | Open |
| 1197 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 1 | Bogusz Piliczewski | Ruben Gideon Koellner | 0-1 | 24 | Open |
| 1198 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 11 | Qingyu Yuan | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 1199 | 2022-06-21 | Titled Tue 21st Jun Late | chess.com INT | 10 | Aleksandra Maltsevskaya | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 1200 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 9 | Robert Yorisan Ramirez Vido | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 1201 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 9 | Rinat Jumabayev | Ruben Gideon Koellner | 1-0 | 30 | Open |
| 1202 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 8 | Maksim Chigaev | Ruben Gideon Koellner | 1-0 | 33 | Open |
| 1203 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 8 | Ruben Gideon Koellner | Jose Joaquin Bas Mas | 0-1 | 32 | Open |
| 1204 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 7 | Luis Fernandez Siles | Ruben Gideon Koellner | 1/2-1/2 | 60 | Open |
| 1205 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 7 | Ruben Gideon Koellner | Alexander Donchenko | 0-1 | 38 | Open |
| 1206 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 6 | Ruben Gideon Koellner | German Bazeev | 1-0 | 62 | Open |
| 1207 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 6 | Ruben Gideon Koellner | Viktor Skliarov | 0-1 | 79 | Open |
| 1208 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 5 | Dmitry Rostovtsev | Ruben Gideon Koellner | 0-1 | 60 | Open |
| 1209 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 5 | Ruben Gideon Koellner | Pham Tran Gia Phuc | 1-0 | 46 | Open |
| 1210 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 4 | Dmitry Goltsev | Ruben Gideon Koellner | 1-0 | 53 | Open |
| 1211 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 4 | Ruben Gideon Koellner | Razvan Preotu | 1-0 | 51 | Open |
| 1212 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 3 | Aleksandr Shimanov | Ruben Gideon Koellner | 1-0 | 63 | Open |
| 1213 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 3 | Ruben Gideon Koellner | Aleksandar Indjic | 1-0 | 41 | Open |
| 1214 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 2 | Alexei Shirov | Ruben Gideon Koellner | 0-1 | 54 | Open |
| 1215 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 2 | Ruben Gideon Koellner | Anna Golubova | 1-0 | 54 | Open |
| 1216 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 1 | Tiago Carvalho Mangialardo | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 1217 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 1 | Ruben Gideon Koellner | Maksims Golubovskis | 1-0 | 24 | Open |
| 1218 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 11 | Ruben Gideon Koellner | Artiom Stribuk | 0-1 | 42 | Open |
| 1219 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 11 | Ricardo D. D`Arruda | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 1220 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 10 | Pablo Salinas Herrera | Ruben Gideon Koellner | 0-1 | 67 | Open |
| 1221 | 2022-05-31 | Titled Tue 31st May Late | chess.com INT | 10 | Ruben Gideon Koellner | Artai Bringas Gomez | 1/2-1/2 | 41 | Open |
| 1222 | 2022-05-27 | HSK GM 2022 | Hamburg GER | 9.2 | Ruben Gideon Koellner | Frederik Svane | 0-1 | 51 | Open |
| 1223 | 2022-05-26 | HSK GM 2022 | Hamburg GER | 8.4 | Malte Colpe | Ruben Gideon Koellner | 1-0 | 60 | Open |
| 1224 | 2022-05-25 | HSK GM 2022 | Hamburg GER | 7.3 | Ruben Gideon Koellner | Lawrence Trent | 0-1 | 39 | Open |
| 1225 | 2022-05-24 | HSK GM 2022 | Hamburg GER | 6.3 | Georgios Souleidis | Ruben Gideon Koellner | 1/2-1/2 | 30 | Open |
| 1226 | 2022-05-24 | HSK GM 2022 | Hamburg GER | 5.4 | Ruben Gideon Koellner | Leon Luke Mendonca | 1/2-1/2 | 65 | Open |
| 1227 | 2022-05-23 | HSK GM 2022 | Hamburg GER | 4.2 | Tom-Frederic Woelk | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 1228 | 2022-05-22 | HSK GM 2022 | Hamburg GER | 3.5 | Ruben Gideon Koellner | Jonathan Carlstedt | 1/2-1/2 | 6 | Open |
| 1229 | 2022-05-21 | HSK GM 2022 | Hamburg GER | 2.1 | Peter Prohaszka | Ruben Gideon Koellner | 1/2-1/2 | 77 | Open |
| 1230 | 2022-05-20 | HSK GM 2022 | Hamburg GER | 1.5 | Vasilios Kotronias | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 1231 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 3 | Ruben Gideon Koellner | Evan S Rosenberg | 0-1 | 36 | Open |
| 1232 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 2 | Luis Fernandez Siles | Ruben Gideon Koellner | 0-1 | 15 | Open |
| 1233 | 2022-05-17 | Titled Tue 17th May Late | chess.com INT | 2 | Ruben Gideon Koellner | Oliver Wartiovaara | 0-1 | 0 | Open |
| 1234 | 2022-05-17 | Titled Tue 17th May Late | chess.com INT | 1 | Ramyres Santana Coelho | Ruben Gideon Koellner | 1-0 | 69 | Open |
| 1235 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 1 | Ruben Gideon Koellner | Jemal Ovezdurdyyeva | 0-1 | 34 | Open |
| 1236 | 2022-05-15 | Bundesliga 2021-22 | Deizisau GER | 8.2 | Philipp Richter | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 1237 | 2022-05-14 | Bundesliga 2021-22 | Deizisau GER | 7.1 | Ruben Gideon Koellner | Jarno Pitl | 1-0 | 42 | Open |
| 1238 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 9 | Ruben Gideon Koellner | Brandon G I Clarke | 1/2-1/2 | 56 | Open |
| 1239 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 8 | Ruben Gideon Koellner | Miran Oganian | 1-0 | 19 | Open |
| 1240 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 7 | Artur Dilmukhametov | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1241 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 6 | Sergey Kim | Ruben Gideon Koellner | 0-1 | 34 | Open |
| 1242 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 5 | Ruben Gideon Koellner | Robinson Perez Molina | 1/2-1/2 | 30 | Open |
| 1243 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 4 | Sanan Sjugirov | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 1244 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 3 | Ruben Gideon Koellner | Lazaro Lorenzo De La Riva | 1-0 | 103 | Open |
| 1245 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 2 | David Paravyan | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 1246 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 1 | Martin Horcajuelo Rocamora | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 1247 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 11 | Ruben Gideon Koellner | Robert Hess | 0-1 | 57 | Open |
| 1248 | 2022-05-10 | Titled Tue 10th May Late | chess.com INT | 10 | Anton Demchenko | Ruben Gideon Koellner | 1-0 | 48 | Open |
| 1249 | 2022-05-08 | Mitropa Cup 2022 | Corte FRA | 9.1 | Ruben Gideon Koellner | Valentin Dragnev | 1/2-1/2 | 26 | Open |
| 1250 | 2022-05-07 | Mitropa Cup 2022 | Corte FRA | 8.1 | Fabian Baenziger | Ruben Gideon Koellner | 1/2-1/2 | 40 | Open |
| 1251 | 2022-05-06 | Mitropa Cup 2022 | Corte FRA | 7.1 | Ruben Gideon Koellner | Jergus Pechac | 1/2-1/2 | 28 | Open |
| 1252 | 2022-05-04 | Mitropa Cup 2022 | Corte FRA | 5.1 | Viktor Erdos | Ruben Gideon Koellner | 1-0 | 23 | Open |
| 1253 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 9 | Aleksandr Kholin | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1254 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 8 | Bojan Maksimovic | Ruben Gideon Koellner | 1-0 | 33 | Open |
| 1255 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 7 | Ruben Gideon Koellner | Mikhail Pesotskiy | 1-0 | 50 | Open |
| 1256 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 6 | Wojciech Przybylski | Ruben Gideon Koellner | 0-1 | 61 | Open |
| 1257 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 5 | Ruben Gideon Koellner | Guillermo Baches Garcia | 0-1 | 48 | Open |
| 1258 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 4 | Matthias Bluebaum | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 1259 | 2022-05-03 | Mitropa Cup 2022 | Corte FRA | 4.1 | Ruben Gideon Koellner | Pierluigi Piscopo | 1-0 | 79 | Open |
| 1260 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 3 | Aleksa Petrovic | Ruben Gideon Koellner | 0-1 | 18 | Open |
| 1261 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 2 | Ruben Gideon Koellner | Jose Eduardo Martinez Alcantara | 0-1 | 47 | Open |
| 1262 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 1 | Ruben Gideon Koellner | Irina Petrova | 1-0 | 69 | Open |
| 1263 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 11 | Viacheslav Mikhailov | Ruben Gideon Koellner | 1-0 | 38 | Open |
| 1264 | 2022-05-03 | Titled Tue 3rd May Late | chess.com INT | 10 | Ruben Gideon Koellner | Roberto Mogranzini | 1-0 | 55 | Open |
| 1265 | 2022-05-02 | Mitropa Cup 2022 | Corte FRA | 3.2 | Ruben Gideon Koellner | Jakub Kusa | 1/2-1/2 | 49 | Open |
| 1266 | 2022-05-01 | Mitropa Cup 2022 | Corte FRA | 2.1 | Ruben Gideon Koellner | Jules Moussard | 0-1 | 53 | Open |
| 1267 | 2022-04-30 | Mitropa Cup 2022 | Corte FRA | 1.1 | Luca Jr Moroni | Ruben Gideon Koellner | 1-0 | 57 | Open |
| 1268 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 9 | Bojan Todorovic | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 1269 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 8 | Ruben Gideon Koellner | Dennis Wagner | 0-1 | 32 | Open |
| 1270 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 7 | Rodrigo Vasquez Schroeder | Ruben Gideon Koellner | 1-0 | 77 | Open |
| 1271 | 2022-04-26 | Titled Tue 26th Apr Late | chess.com INT | 7 | Emin Ohanyan | Ruben Gideon Koellner | 1-0 | 54 | Open |
| 1272 | 2022-04-26 | Titled Tue 26th Apr Late | chess.com INT | 6 | Ruben Gideon Koellner | Sanan Sjugirov | 0-1 | 44 | Open |
| 1273 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 6 | Ruben Gideon Koellner | Daniel Fernandez | 1-0 | 45 | Open |
| 1274 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 5 | Ben Li | Ruben Gideon Koellner | 0-1 | 45 | Open |
| 1275 | 2022-04-26 | Titled Tue 26th Apr Late | chess.com INT | 5 | Ruben Gideon Koellner | Yuniesky Quesada Perez | 1-0 | 68 | Open |
| 1276 | 2022-04-26 | Titled Tue 26th Apr Late | chess.com INT | 4 | Aleksandr Shimanov | Ruben Gideon Koellner | 1-0 | 34 | Open |
| 1277 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 4 | Ruben Gideon Koellner | Maksim Chigaev | 0-1 | 42 | Open |
| 1278 | 2022-04-26 | Titled Tue 26th Apr Late | chess.com INT | 3 | Qingyu Yuan | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 1279 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 3 | Ruben Gideon Koellner | Cem Kaan Gokerkan | 1-0 | 48 | Open |
| 1280 | 2022-04-26 | Titled Tue 26th Apr Late | chess.com INT | 2 | Ruben Gideon Koellner | Rodrigo Vasquez Schroeder | 1/2-1/2 | 75 | Open |
| 1281 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 2 | Mihnea Costachi | Ruben Gideon Koellner | 1/2-1/2 | 66 | Open |
| 1282 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 1 | Cumayi Unver | Ruben Gideon Koellner | 0-1 | 53 | Open |
| 1283 | 2022-04-26 | Titled Tue 26th Apr Late | chess.com INT | 1 | Ruben Gideon Koellner | Cristiano Gomes De Souza | 1-0 | 25 | Open |
| 1284 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 11 | Todd Andrews | Ruben Gideon Koellner | 0-1 | 58 | Open |
| 1285 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 10 | Ruben Gideon Koellner | Gianmarco Leiva | 0-1 | 35 | Open |
| 1286 | 2022-04-10 | Bundesliga 2021-22 | Aachen GER | 4.4 | Ruben Gideon Koellner | Thomas Huesmann | 1-0 | 43 | Open |
| 1287 | 2022-04-09 | Bundesliga 2021-22 | Aachen GER | 3.4 | Paul Wiedenbruch | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1288 | 2022-04-05 | Titled Tue 5th Apr Early | chess.com INT | 6 | Roman Kezin | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 1289 | 2022-04-05 | Titled Tue 5th Apr Late | chess.com INT | 6 | Ruben Gideon Koellner | Krikor Sevag Mekhitarian | 0-1 | 40 | Open |
| 1290 | 2022-04-05 | Titled Tue 5th Apr Late | chess.com INT | 5 | Regita Desyari Putri | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 1291 | 2022-04-05 | Titled Tue 5th Apr Early | chess.com INT | 5 | Dmitry Maximov | Ruben Gideon Koellner | 1-0 | 40 | Open |
| 1292 | 2022-04-05 | Titled Tue 5th Apr Early | chess.com INT | 4 | Ruben Gideon Koellner | Nikolay Noritsyn | 1-0 | 57 | Open |
| 1293 | 2022-04-05 | Titled Tue 5th Apr Late | chess.com INT | 4 | Ruben Gideon Koellner | Leonardo Tristan | 0-1 | 36 | Open |
| 1294 | 2022-04-05 | Titled Tue 5th Apr Late | chess.com INT | 3 | Jules Moussard | Ruben Gideon Koellner | 1-0 | 62 | Open |
| 1295 | 2022-04-05 | Titled Tue 5th Apr Early | chess.com INT | 3 | Ruben Gideon Koellner | V Pranav | 0-1 | 70 | Open |
| 1296 | 2022-04-05 | Titled Tue 5th Apr Early | chess.com INT | 2 | Gianmarco Leiva | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 1297 | 2022-04-05 | Titled Tue 5th Apr Late | chess.com INT | 2 | Ruben Gideon Koellner | Miran Oganian | 1-0 | 61 | Open |
| 1298 | 2022-04-05 | Titled Tue 5th Apr Late | chess.com INT | 1 | 2605767 | Ruben Gideon Koellner | 0-1 | 27 | Open |
| 1299 | 2022-04-05 | Titled Tue 5th Apr Early | chess.com INT | 1 | Mohammad Mohammadian | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 1300 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 5 | Christian Polster | Ruben Gideon Koellner | 1-0 | 53 | Open |
| 1301 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 4 | Josefine Safarli | Ruben Gideon Koellner | 1-0 | 28 | Open |
| 1302 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 3 | Ruben Gideon Koellner | Anysia Thomas | 0-1 | 86 | Open |
| 1303 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 2 | Aleksey Dreev | Ruben Gideon Koellner | 1-0 | 33 | Open |
| 1304 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 1 | Hrvoje Fajdetic | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 1305 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 9 | Luiz Antonio Coel Araujo Filho | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 1306 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 8 | Ruben Gideon Koellner | Miran Oganian | 0-1 | 42 | Open |
| 1307 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 7 | Ruben Gideon Koellner | Olzhas Khamzin | 1/2-1/2 | 49 | Open |
| 1308 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 6 | Khazar Babazada | Ruben Gideon Koellner | 1-0 | 45 | Open |
| 1309 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 5 | Ruben Gideon Koellner | Marius Manolache | 1-0 | 69 | Open |
| 1310 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 4 | Aleksey Dreev | Ruben Gideon Koellner | 1-0 | 81 | Open |
| 1311 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 3 | Ruben Gideon Koellner | Pavel Smirnov | 1-0 | 30 | Open |
| 1312 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 2 | Vjacheslav Weetik | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 1313 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 1 | Ruben Gideon Koellner | Manuel Petrosyan | 1/2-1/2 | 74 | Open |
| 1314 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 11 | Ruben Gideon Koellner | Abtin Atakhan | 0-1 | 28 | Open |
| 1315 | 2022-03-22 | Titled Tue 22nd Mar Early | chess.com INT | 10 | Simon K Williams | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 1316 | 2022-03-20 | Primavera Cattolica Open | Cattolica ITA | 8.7 | Moksh Amit Doshi | Ruben Gideon Koellner | 1-0 | 54 | Open |
| 1317 | 2022-03-19 | Primavera Cattolica Open | Cattolica ITA | 7.8 | Ruben Gideon Koellner | Ivajlo Enchev | 1/2-1/2 | 43 | Open |
| 1318 | 2022-03-19 | Primavera Cattolica Open | Cattolica ITA | 6.1 | Anastasios Koukas | Ruben Gideon Koellner | 0-1 | 52 | Open |
| 1319 | 2022-03-18 | Primavera Cattolica Open | Cattolica ITA | 5.14 | Ruben Gideon Koellner | Michael Kotyk | 1-0 | 26 | Open |
| 1320 | 2022-03-18 | Primavera Cattolica Open | Cattolica ITA | 4.9 | Evan Park | Ruben Gideon Koellner | 1-0 | 58 | Open |
| 1321 | 2022-03-17 | Primavera Cattolica Open | Cattolica ITA | 3.1 | Ruben Gideon Koellner | Khumoyun Begmuratov | 1/2-1/2 | 77 | Open |
| 1322 | 2022-03-17 | Primavera Cattolica Open | Cattolica ITA | 2.13 | Angelo Damia | Ruben Gideon Koellner | 1/2-1/2 | 49 | Open |
| 1323 | 2022-03-16 | Primavera Cattolica Open | Cattolica ITA | 1.15 | Ruben Gideon Koellner | Alessio Gattafoni | 1-0 | 42 | Open |
| 1324 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 9 | Koosha Jaferian | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 1325 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 8 | Ruben Gideon Koellner | Zbigniew Pakleza | 0-1 | 45 | Open |
| 1326 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 7 | Aleksandar Indjic | Ruben Gideon Koellner | 1/2-1/2 | 41 | Open |
| 1327 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 6 | Shiyam Thavandiran | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 1328 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 5 | Ruben Gideon Koellner | Aleksandra Maltsevskaya | 1-0 | 48 | Open |
| 1329 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 4 | Sergey Vokarev | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 1330 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 3 | Nurai Sovetbekova | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 1331 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 2 | Ruben Gideon Koellner | Rinat Jumabayev | 0-1 | 63 | Open |
| 1332 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 1 | Alexandr Fier | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 1333 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 11 | Ruben Gideon Koellner | Viktor Skliarov | 0-1 | 31 | Open |
| 1334 | 2022-03-15 | Titled Tue 15th Mar Early | chess.com INT | 10 | Evgeny Postny | Ruben Gideon Koellner | 1-0 | 75 | Open |
| 1335 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 9 | Ruben Gideon Koellner | Jose Carlos Ibarra Jerez | 0-1 | 58 | Open |
| 1336 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 8 | Jorden Van Foreest | Ruben Gideon Koellner | 1/2-1/2 | 63 | Open |
| 1337 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 7 | Ruben Gideon Koellner | Jose Eduardo Martinez Alcantara | 1-0 | 58 | Open |
| 1338 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 6 | Vuk Djordjevic | Ruben Gideon Koellner | 0-1 | 95 | Open |
| 1339 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 5 | Martin Hollan | Ruben Gideon Koellner | 0-1 | 54 | Open |
| 1340 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 4 | Ruben Gideon Koellner | Oskar Wieczorek | 1-0 | 32 | Open |
| 1341 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 3 | Ruben Gideon Koellner | Nemanja Zivkovic | 1/2-1/2 | 65 | Open |
| 1342 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 2 | Grayson Rorrer | Ruben Gideon Koellner | 0-1 | 61 | Open |
| 1343 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 1 | Leonardo Tristan | Ruben Gideon Koellner | 1-0 | 69 | Open |
| 1344 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 11 | Shiyam Thavandiran | Ruben Gideon Koellner | 0-1 | 49 | Open |
| 1345 | 2022-03-08 | Titled Tue 8th Mar Late | chess.com INT | 10 | Ruben Gideon Koellner | Alexander Fishbein | 1-0 | 41 | Open |
| 1346 | 2022-03-06 | Bundesliga 2021-22 | Bremen GER | 2.8 | Ruben Gideon Koellner | Alexander Markgraf | 0-1 | 60 | Open |
| 1347 | 2022-03-05 | Bundesliga 2021-22 | Bremen GER | 1.8 | Alexander Hoenig | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 1348 | 2022-02-06 | chessemy Open 2022 | Reinstorf GER | 9.7 | Lara Schulze | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 1349 | 2022-02-05 | chessemy Open 2022 | Reinstorf GER | 8.8 | Ruben Gideon Koellner | Hannes Ewert | 1-0 | 36 | Open |
| 1350 | 2022-02-04 | chessemy Open 2022 | Reinstorf GER | 7.2 | Justin Tan | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 1351 | 2022-02-03 | chessemy Open 2022 | Reinstorf GER | 6.1 | Ruben Gideon Koellner | Erik Van den Doel | 1/2-1/2 | 65 | Open |
| 1352 | 2022-02-02 | chessemy Open 2022 | Reinstorf GER | 5.4 | Melanie Lubbe | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 1353 | 2022-02-01 | chessemy Open 2022 | Reinstorf GER | 4.7 | Ruben Gideon Koellner | David Kardoeus | 1-0 | 45 | Open |
| 1354 | 2022-01-31 | chessemy Open 2022 | Reinstorf GER | 3.5 | Jeremy Hommer | Ruben Gideon Koellner | 1/2-1/2 | 60 | Open |
| 1355 | 2022-01-30 | chessemy Open 2022 | Reinstorf GER | 2.6 | Ruben Gideon Koellner | Peter Anderberg | 1-0 | 26 | Open |
| 1356 | 2022-01-29 | chessemy Open 2022 | Reinstorf GER | 1.6 | Nathalie Pellicoro | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1357 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 9 | Ruben Gideon Koellner | Lilit Mkrtchian | 0-1 | 51 | Open |
| 1358 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 8 | Ruben Gideon Koellner | Nikolaos Aggelis | 0-1 | 38 | Open |
| 1359 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 7 | Murad Ibrahimli | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 1360 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 6 | Ruben Gideon Koellner | Gellert Karacsonyi | 1/2-1/2 | 94 | Open |
| 1361 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 5 | Ruben Gideon Koellner | Jahandar Azadaliyev | 1/2-1/2 | 41 | Open |
| 1362 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 4 | Pavel-Alexandru Nastore | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 1363 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 3 | Ruben Gideon Koellner | Serhan Berat Ozdemir | 1-0 | 38 | Open |
| 1364 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 2 | Ruben Gideon Koellner | Zhamsaran Tsydypov | 0-1 | 45 | Open |
| 1365 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 1 | Fausto Gerola | Ruben Gideon Koellner | 0-1 | 66 | Open |
| 1366 | 2021-12-30 | 1st BICA Pawn Open 2021 | Sousse TUN | 9.6 | Ruben Gideon Koellner | Volodymyr Vetoshko | 1/2-1/2 | 16 | Open |
| 1367 | 2021-12-29 | 1st BICA Pawn Open 2021 | Sousse TUN | 8.3 | Ruben Gideon Koellner | Vitaliy Bernadskiy | 1/2-1/2 | 52 | Open |
| 1368 | 2021-12-28 | 1st BICA Pawn Open 2021 | Sousse TUN | 7.8 | Abdimalik Abdisalimov | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 1369 | 2021-12-28 | Titled Tuesday 28th Dec | chess.com INT | 6 | Ruben Gideon Koellner | Slaven Pastar | 1-0 | 42 | Open |
| 1370 | 2021-12-28 | Titled Tuesday 28th Dec | chess.com INT | 5 | Visakh N R | Ruben Gideon Koellner | 1-0 | 68 | Open |
| 1371 | 2021-12-28 | Titled Tuesday 28th Dec | chess.com INT | 4 | Ruben Gideon Koellner | Marcelo Jorquera | 1-0 | 64 | Open |
| 1372 | 2021-12-28 | Titled Tuesday 28th Dec | chess.com INT | 3 | Bahadir Ozen | Ruben Gideon Koellner | 1-0 | 75 | Open |
| 1373 | 2021-12-28 | Titled Tuesday 28th Dec | chess.com INT | 2 | Leonardo Liu | Ruben Gideon Koellner | 0-1 | 49 | Open |
| 1374 | 2021-12-28 | Titled Tuesday 28th Dec | chess.com INT | 1 | Ruben Gideon Koellner | Olga Karavaeva | 1-0 | 54 | Open |
| 1375 | 2021-12-27 | 1st BICA Pawn Open 2021 | Sousse TUN | 6.4 | Ruben Gideon Koellner | Evgeny Romanov | 1/2-1/2 | 25 | Open |
| 1376 | 2021-12-27 | 1st BICA Pawn Open 2021 | Sousse TUN | 5.14 | Ahmed Bouzidi | Ruben Gideon Koellner | 0-1 | 0 | Open |
| 1377 | 2021-12-26 | 1st BICA Pawn Open 2021 | Sousse TUN | 4.15 | Ruben Gideon Koellner | Rami Taher | 1-0 | 49 | Open |
| 1378 | 2021-12-25 | 1st BICA Pawn Open 2021 | Sousse TUN | 3.7 | Valery Sviridov | Ruben Gideon Koellner | 1-0 | 58 | Open |
| 1379 | 2021-12-25 | 1st BICA Pawn Open 2021 | Sousse TUN | 2.21 | Ruben Gideon Koellner | Omid Bashirinia | 1-0 | 34 | Open |
| 1380 | 2021-12-24 | 1st BICA Pawn Open 2021 | Sousse TUN | 1.23 | Salem Abdulrahim | Ruben Gideon Koellner | 0-1 | 20 | Open |
| 1381 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 9 | Ruben Gideon Koellner | Pavel Chernomordik | 1-0 | 52 | Open |
| 1382 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 8 | Artur Gabrielian | Ruben Gideon Koellner | 1-0 | 69 | Open |
| 1383 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 7 | Ruben Gideon Koellner | Arash Tahbaz | 0-1 | 41 | Open |
| 1384 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 6 | Bartlomiej Turski | Ruben Gideon Koellner | 0-1 | 66 | Open |
| 1385 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 5 | Andrey Tsvetkov | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 1386 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 4 | Ruben Gideon Koellner | Oleg Krivonosov | 1-0 | 24 | Open |
| 1387 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 3 | Ildar F Idrisov | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 1388 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 2 | Ruben Gideon Koellner | Dincer Tasdogen | 0-1 | 34 | Open |
| 1389 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 1 | Ruben Gideon Koellner | Alexander A. Chernov | 1-0 | 44 | Open |
| 1390 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 11 | Ruben Gideon Koellner | Ramil Sadykov | 1-0 | 51 | Open |
| 1391 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 10 | Aziz Mert Erdogdu | Ruben Gideon Koellner | 1-0 | 78 | Open |
| 1392 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 9 | Ramil Faizrakhmanov | Ruben Gideon Koellner | 1-0 | 74 | Open |
| 1393 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 8 | Ruben Gideon Koellner | Dominik Horvath | 0-1 | 29 | Open |
| 1394 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 7 | Vasiliy Korchmar | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 1395 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 6 | Ruben Gideon Koellner | Arman Hakemi | 1-0 | 53 | Open |
| 1396 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 5 | Ruben Gideon Koellner | Konstantin Garagulya | 1-0 | 87 | Open |
| 1397 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 4 | Baadur Jobava | Ruben Gideon Koellner | 1-0 | 68 | Open |
| 1398 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 3 | Alexandra Shvedova | Ruben Gideon Koellner | 0-1 | 60 | Open |
| 1399 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 2 | Ruben Gideon Koellner | Vugar Rasulov | 0-1 | 35 | Open |
| 1400 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 1 | Ruben Gideon Koellner | Francisco Silva Gonzalez | 1-0 | 36 | Open |
| 1401 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 11 | Ruben Gideon Koellner | Artur Gabrielian | 0-1 | 22 | Open |
| 1402 | 2021-12-14 | Titled Tuesday 14th Dec | chess.com INT | 10 | Ruben Gideon Koellner | Tomasz Jaskolka | 1-0 | 47 | Open |
| 1403 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 9 | Ruben Gideon Koellner | Zachary Tanenbaum | 0-1 | 62 | Open |
| 1404 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 8 | Ruben Gideon Koellner | Boris Itkis | 1-0 | 72 | Open |
| 1405 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 7 | Zbigniew Pakleza | Ruben Gideon Koellner | 1-0 | 66 | Open |
| 1406 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 6 | Ruben Gideon Koellner | Read Samadov | 0-1 | 28 | Open |
| 1407 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 5 | Ruben Gideon Koellner | Nikita Khoroshev | 1-0 | 64 | Open |
| 1408 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 4 | Frederik Svane | Ruben Gideon Koellner | 0-1 | 18 | Open |
| 1409 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 3 | Ruben Gideon Koellner | Lewis Martin | 1-0 | 66 | Open |
| 1410 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 2 | Conrad Holt | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 1411 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 1 | Jesper Morch Lauridsen | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 1412 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 11 | Ruben Gideon Koellner | Daniel Rangel | 1-0 | 62 | Open |
| 1413 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 10 | Kateryna Dolzhykova | Ruben Gideon Koellner | 1/2-1/2 | 114 | Open |
| 1414 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 9 | Dumitru-Daniel Dinu | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 1415 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 8 | Ruben Gideon Koellner | Evgenij Shuvalov | 1-0 | 61 | Open |
| 1416 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 7 | Arman Erzhanov | Ruben Gideon Koellner | 1/2-1/2 | 69 | Open |
| 1417 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 6 | Ruben Gideon Koellner | Michael Buscar | 1-0 | 20 | Open |
| 1418 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 5 | Alicja Sliwicka | Ruben Gideon Koellner | 1-0 | 54 | Open |
| 1419 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 4 | Ruben Gideon Koellner | Rinat Jumabayev | 0-1 | 30 | Open |
| 1420 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 3 | Artak Manukian | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 1421 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 2 | Ruben Gideon Koellner | Jonah B Willow | 0-1 | 34 | Open |
| 1422 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 1 | Adrian Musat | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 1423 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 11 | Igor Lysyj | Ruben Gideon Koellner | 1-0 | 25 | Open |
| 1424 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 10 | Ruben Gideon Koellner | Orest Vovk | 1-0 | 39 | Open |
| 1425 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 9 | Ruben Gideon Koellner | Aziz Mert Erdogdu | 1-0 | 24 | Open |
| 1426 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 8 | Oleg Gubanov | Ruben Gideon Koellner | 0-1 | 61 | Open |
| 1427 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 7 | Ruben Gideon Koellner | Ihor Samunenkov | 0-1 | 0 | Open |
| 1428 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 6 | Ediz Gurel | Ruben Gideon Koellner | 0-1 | 62 | Open |
| 1429 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 5 | Ruben Gideon Koellner | Dumitru-Daniel Dinu | 1-0 | 40 | Open |
| 1430 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 4 | Vjacheslav Weetik | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 1431 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 3 | Olga Matveeva | Ruben Gideon Koellner | 0-1 | 30 | Open |
| 1432 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 2 | Ruben Gideon Koellner | Alan Pichot | 0-1 | 63 | Open |
| 1433 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 1 | Isara Banidu Dahanayake | Ruben Gideon Koellner | 0-1 | 20 | Open |
| 1434 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 11 | Sergei Shipov | Ruben Gideon Koellner | 1-0 | 58 | Open |
| 1435 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 10 | Ruben Gideon Koellner | Levy Rozman | 0-1 | 80 | Open |
| 1436 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 9 | Ruben Gideon Koellner | Marcos Vinicius Torsani Pires | 0-1 | 28 | Open |
| 1437 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 8 | Artak Manukian | Ruben Gideon Koellner | 1/2-1/2 | 58 | Open |
| 1438 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 7 | Ruben Gideon Koellner | Tobias Lang Nilsen | 0-1 | 55 | Open |
| 1439 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 6 | Damiano Locci | Ruben Gideon Koellner | 0-1 | 83 | Open |
| 1440 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 5 | Ruben Gideon Koellner | Levente Miszler | 1/2-1/2 | 64 | Open |
| 1441 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 4 | Jose Eduardo Martinez Alcantara | Ruben Gideon Koellner | 1-0 | 31 | Open |
| 1442 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 3 | William Alfaro | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 1443 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 2 | Ruben Gideon Koellner | Frederik Svane | 0-1 | 58 | Open |
| 1444 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 1 | Ruben Gideon Koellner | Cristian-Gabriel Voiteanu | 1-0 | 1 | Open |
| 1445 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 11 | Ruben Gideon Koellner | Samarth J Rao | 1-0 | 37 | Open |
| 1446 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 10 | Michel Bifulco | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 1447 | 2021-11-01 | 15th Deizisau Autumn Open | Deizisau GER | 7.2 | Ruben Gideon Koellner | Aaron Noah Koellner | 1-0 | 51 | Open |
| 1448 | 2021-11-01 | 15th Deizisau Autumn Open | Deizisau GER | 6.1 | Tobias Koelle | Ruben Gideon Koellner | 1/2-1/2 | 17 | Open |
| 1449 | 2021-10-31 | 15th Deizisau Autumn Open | Deizisau GER | 5.2 | Noah Geltz | Ruben Gideon Koellner | 0-1 | 76 | Open |
| 1450 | 2021-10-30 | 15th Deizisau Autumn Open | Deizisau GER | 3.4 | Ruben Gideon Koellner | Alexander Honisch | 1-0 | 48 | Open |
| 1451 | 2021-10-30 | 15th Deizisau Autumn Open | Deizisau GER | 2.1 | Stefan Lehmann | Ruben Gideon Koellner | 1/2-1/2 | 48 | Open |
| 1452 | 2021-10-29 | 15th Deizisau Autumn Open | Deizisau GER | 1.1 | Ruben Gideon Koellner | Florian Coellen | 1-0 | 35 | Open |
| 1453 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 9 | Assel Serikbay | Ruben Gideon Koellner | 1/2-1/2 | 71 | Open |
| 1454 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 8 | Gabriel Gaehwiler | Ruben Gideon Koellner | 1-0 | 77 | Open |
| 1455 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 7 | Ruben Gideon Koellner | Atilla Eynullayev | 1-0 | 63 | Open |
| 1456 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 6 | Ruben Gideon Koellner | Pavel Plotnikov | 1-0 | 56 | Open |
| 1457 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 5 | Nicolas Brunner | Ruben Gideon Koellner | 1/2-1/2 | 42 | Open |
| 1458 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 4 | Ruben Gideon Koellner | Anna Gvanceladze | 1-0 | 64 | Open |
| 1459 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 3 | David Shahinyan | Ruben Gideon Koellner | 1-0 | 49 | Open |
| 1460 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 2 | Ruben Gideon Koellner | Damian Sliwicki | 1-0 | 29 | Open |
| 1461 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 1 | Mikhail Pesotskiy | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 1462 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 11 | Ruben Gideon Koellner | Vladimir Dobrov | 0-1 | 27 | Open |
| 1463 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 10 | Ruben Gideon Koellner | Julian Estrada Nieto | 1-0 | 58 | Open |
| 1464 | 2021-10-15 | 38th Muensterland Open | Muenster GER | 9.2 | Ruben Gideon Koellner | Maurice Gulatz | 1-0 | 39 | Open |
| 1465 | 2021-10-14 | 38th Muensterland Open | Muenster GER | 8.1 | Matthias Dann | Ruben Gideon Koellner | 1/2-1/2 | 32 | Open |
| 1466 | 2021-10-13 | 38th Muensterland Open | Muenster GER | 7.2 | Ruben Gideon Koellner | Maximilian Wensing | 1-0 | 35 | Open |
| 1467 | 2021-10-12 | 38th Muensterland Open | Muenster GER | 6.3 | Bernhard Stillger | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 1468 | 2021-10-11 | 38th Muensterland Open | Muenster GER | 5.2 | Ruben Gideon Koellner | Uwe Kersten | 1/2-1/2 | 40 | Open |
| 1469 | 2021-10-10 | 38th Muensterland Open | Muenster GER | 4.2 | Roland Ollenberger | Ruben Gideon Koellner | 1/2-1/2 | 42 | Open |
| 1470 | 2021-10-10 | 38th Muensterland Open | Muenster GER | 3.2 | Ruben Gideon Koellner | Ulf Gohla | 1-0 | 30 | Open |
| 1471 | 2021-10-09 | 38th Muensterland Open | Muenster GER | 2.2 | Martin Mainusch | Ruben Gideon Koellner | 0-1 | 64 | Open |
| 1472 | 2021-10-08 | 38th Muensterland Open | Muenster GER | 1.2 | Ruben Gideon Koellner | Klaus Wingenfeld | 1-0 | 25 | Open |
| 1473 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 9 | Klementy Sychev | Ruben Gideon Koellner | 1-0 | 25 | Open |
| 1474 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 8 | Ruben Gideon Koellner | Maximilian Mostbauer | 1-0 | 40 | Open |
| 1475 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 7 | Mykhailo Dorokhin | Ruben Gideon Koellner | 0-1 | 45 | Open |
| 1476 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 6 | Ruben Gideon Koellner | Fabian Ernesto Vivas Zamora | 1-0 | 25 | Open |
| 1477 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 5 | Omar Garcia Blanco | Ruben Gideon Koellner | 1-0 | 56 | Open |
| 1478 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 4 | Ruben Gideon Koellner | Raunak Sadhwani | 0-1 | 47 | Open |
| 1479 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 3 | Ruben Gideon Koellner | Roman Kezin | 0-1 | 33 | Open |
| 1480 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 2 | Pablo Salinas Herrera | Ruben Gideon Koellner | 0-1 | 24 | Open |
| 1481 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 1 | Evan S Rosenberg | Ruben Gideon Koellner | 0-1 | 22 | Open |
| 1482 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 5 | Ruben Gideon Koellner | Bojan Todorovic | 0-1 | 19 | Open |
| 1483 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 4 | Luuk Van Kooten | Ruben Gideon Koellner | 1-0 | 45 | Open |
| 1484 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 3 | Ruben Gideon Koellner | Niranjan Navalgund | 0-1 | 38 | Open |
| 1485 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 2 | Alexander Zubov | Ruben Gideon Koellner | 1-0 | 27 | Open |
| 1486 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 1 | Nilufar Yakubbaeva | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 1487 | 2021-09-25 | Speed Chess GP2 2021 | chess.com INT | 9 | Luca Jr Moroni | Ruben Gideon Koellner | 1-0 | 62 | Open |
| 1488 | 2021-09-25 | Speed Chess GP2 2021 | chess.com INT | 8 | Andrey Rychagov | Ruben Gideon Koellner | 0-1 | 0 | Open |
| 1489 | 2021-09-25 | Speed Chess GP2 2021 | chess.com INT | 7 | Ruben Gideon Koellner | Eduardo Iturrizaga Bonelli | 0-1 | 21 | Open |
| 1490 | 2021-09-25 | Speed Chess GP2 2021 | chess.com INT | 6 | Ruben Gideon Koellner | Read Samadov | 1-0 | 58 | Open |
| 1491 | 2021-09-25 | Speed Chess GP2 2021 | chess.com INT | 5 | Mikhail Kobalia | Ruben Gideon Koellner | 0-1 | 53 | Open |
| 1492 | 2021-09-25 | Speed Chess GP2 2021 | chess.com INT | 4 | Lamine Brahami | Ruben Gideon Koellner | 0-1 | 26 | Open |
| 1493 | 2021-09-25 | Speed Chess GP2 2021 | chess.com INT | 3 | Ruben Gideon Koellner | Pavel Smirnov | 0-1 | 44 | Open |
| 1494 | 2021-09-25 | Speed Chess GP2 2021 | chess.com INT | 2 | Ruben Gideon Koellner | Nicholas Ladan | 1-0 | 22 | Open |
| 1495 | 2021-09-25 | Speed Chess GP2 2021 | chess.com INT | 1 | Dmitrij Kollars | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 1496 | 2021-09-25 | Speed Chess GP2 2021 | chess.com INT | 10 | Ruben Gideon Koellner | Fabien Libiszewski | 0-1 | 37 | Open |
| 1497 | 2021-09-24 | DSB Rising Stars GM 2021 | Berlin GER | 9.2 | Ruben Gideon Koellner | Valentin Buckels | 0-1 | 32 | Open |
| 1498 | 2021-09-23 | DSB Rising Stars GM 2021 | Berlin GER | 8.4 | Mihail Saltaev | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 1499 | 2021-09-23 | DSB Rising Stars GM 2021 | Berlin GER | 7.3 | Ruben Gideon Koellner | Evgeny Romanov | 1-0 | 31 | Open |
| 1500 | 2021-09-22 | DSB Rising Stars GM 2021 | Berlin GER | 6.3 | Petr Haba | Ruben Gideon Koellner | 1/2-1/2 | 30 | Open |
| 1501 | 2021-09-21 | DSB Rising Stars GM 2021 | Berlin GER | 5.4 | Ruben Gideon Koellner | Richard Bethke | 0-1 | 54 | Open |
| 1502 | 2021-09-21 | DSB Rising Stars GM 2021 | Berlin GER | 4.2 | Leonid Sawlin | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 1503 | 2021-09-20 | DSB Rising Stars GM 2021 | Berlin GER | 3.5 | Ruben Gideon Koellner | Alexander Krastev | 1/2-1/2 | 23 | Open |
| 1504 | 2021-09-19 | DSB Rising Stars GM 2021 | Berlin GER | 2.1 | Ashot Parvanyan | Ruben Gideon Koellner | 0-1 | 75 | Open |
| 1505 | 2021-09-19 | DSB Rising Stars GM 2021 | Berlin GER | 1.5 | Zigurds Lanka | Ruben Gideon Koellner | 0-1 | 60 | Open |
| 1506 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 9 | Ruben Gideon Koellner | Aziz Mert Erdogdu | 1-0 | 42 | Open |
| 1507 | 2021-09-14 | 1. Int Swiss Masters 2021 | Baden Baden GER | 9.9 | Johannes von Mettenheim | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 1508 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 8 | Andrzej Krzywda | Ruben Gideon Koellner | 0-1 | 50 | Open |
| 1509 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 7 | Ruben Gideon Koellner | Felix Hindermann | 0-1 | 23 | Open |
| 1510 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 6 | Oleg Gubanov | Ruben Gideon Koellner | 1/2-1/2 | 64 | Open |
| 1511 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 5 | Ruben Gideon Koellner | Maxime Lagarde | 0-1 | 59 | Open |
| 1512 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 4 | Alexander Rustemov | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 1513 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 3 | Nikita Vitiugov | Ruben Gideon Koellner | 1-0 | 19 | Open |
| 1514 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 2 | Ruben Gideon Koellner | David Gorodetzky | 1-0 | 70 | Open |
| 1515 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 1 | Ruben Gideon Koellner | Han Schut | 1-0 | 37 | Open |
| 1516 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 11 | Ruben Gideon Koellner | Levy Rozman | 0-1 | 16 | Open |
| 1517 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 10 | Milosz Szpar | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 1518 | 2021-09-13 | 1. Int Swiss Masters 2021 | Baden Baden GER | 8.6 | Ruben Gideon Koellner | Georg Froewis | 0-1 | 39 | Open |
| 1519 | 2021-09-13 | 1. Int Swiss Masters 2021 | Baden Baden GER | 7.6 | Ashot Parvanyan | Ruben Gideon Koellner | 1-0 | 58 | Open |
| 1520 | 2021-09-12 | 1. Int Swiss Masters 2021 | Baden Baden GER | 6.7 | Ruben Gideon Koellner | Nils Richter | 1-0 | 49 | Open |
| 1521 | 2021-09-11 | 1. Int Swiss Masters 2021 | Baden Baden GER | 5.6 | Niklas Schmider | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 1522 | 2021-09-11 | 1. Int Swiss Masters 2021 | Baden Baden GER | 4.5 | Ruben Gideon Koellner | Elliot Papadiamandis | 1/2-1/2 | 17 | Open |
| 1523 | 2021-09-10 | 1. Int Swiss Masters 2021 | Baden Baden GER | 3.2 | Philipp Schlosser | Ruben Gideon Koellner | 1/2-1/2 | 52 | Open |
| 1524 | 2021-09-10 | 1. Int Swiss Masters 2021 | Baden Baden GER | 2.3 | Ruben Gideon Koellner | Soham Das | 1/2-1/2 | 51 | Open |
| 1525 | 2021-09-09 | 1. Int Swiss Masters 2021 | Baden Baden GER | 1.7 | Christof Koellner | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 1526 | 2021-09-05 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 11.48 | Ruben Gideon Koellner | Martin Wecker | 1-0 | 21 | Open |
| 1527 | 2021-09-04 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 10.4 | Adam Kozak | Ruben Gideon Koellner | 1-0 | 40 | Open |
| 1528 | 2021-09-03 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 9.38 | Ruben Gideon Koellner | Jorge Viterbo Ferreira | 1/2-1/2 | 98 | Open |
| 1529 | 2021-09-02 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 8.36 | Aydin Suleymanli | Ruben Gideon Koellner | 1/2-1/2 | 47 | Open |
| 1530 | 2021-09-01 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 7.34 | Ruben Gideon Koellner | Tiger Hillarp Persson | 1/2-1/2 | 45 | Open |
| 1531 | 2021-08-31 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 6.54 | Bardur Orn Birkisson | Ruben Gideon Koellner | 0-1 | 34 | Open |
| 1532 | 2021-08-30 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 5.55 | Korab Saraci | Ruben Gideon Koellner | 1/2-1/2 | 71 | Open |
| 1533 | 2021-08-29 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 4.32 | Ruben Gideon Koellner | Valentin Dragnev | 0-1 | 76 | Open |
| 1534 | 2021-08-28 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 3.56 | Ruben Gideon Koellner | Alexander Oliver Mai | 1-0 | 46 | Open |
| 1535 | 2021-08-27 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 2.36 | Luka Paichadze | Ruben Gideon Koellner | 1-0 | 61 | Open |
| 1536 | 2021-08-26 | 21st ch-EUR Indiv 2021 | Reykjavik ISL | 1.87 | Ruben Gideon Koellner | Gudmundur Orri Sveinbjornsson | 1-0 | 19 | Open |
| 1537 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 9 | Evgeny Sapunov | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 1538 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 8 | Ruben Gideon Koellner | Luis Daniel Rodriguez Hernandez | 1/2-1/2 | 15 | Open |
| 1539 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 7 | Sergey Drygalov | Ruben Gideon Koellner | 1-0 | 48 | Open |
| 1540 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 6 | Ruben Gideon Koellner | Jung Min Seo | 1-0 | 36 | Open |
| 1541 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 5 | Ali Rastbod | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 1542 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 4 | Ioan-Cristian Chirila | Ruben Gideon Koellner | 0-1 | 49 | Open |
| 1543 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 3 | Ruben Gideon Koellner | Leonardo Tristan | 0-1 | 43 | Open |
| 1544 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 2 | Ediz Gurel | Ruben Gideon Koellner | 0-1 | 86 | Open |
| 1545 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 1 | Henryk Seifert | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 1546 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 11 | Aman Hambleton | Ruben Gideon Koellner | 1-0 | 93 | Open |
| 1547 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 10 | Ruben Gideon Koellner | Siar Yaran | 0-1 | 19 | Open |
| 1548 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 9 | Grigory Seletsky | Ruben Gideon Koellner | 1-0 | 63 | Open |
| 1549 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 8 | Ruben Gideon Koellner | Bruno Morado Rodrigues | 1-0 | 42 | Open |
| 1550 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 7 | Jesus Martin Duque | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 1551 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 6 | Ruben Gideon Koellner | Elene Tsotsonava | 1-0 | 29 | Open |
| 1552 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 5 | Pandey Srishti | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 1553 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 4 | Ruben Gideon Koellner | Ladislav Langner | 1-0 | 66 | Open |
| 1554 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 3 | Volodymyr Vusatiuk | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 1555 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 2 | Ruben Gideon Koellner | Viktoriya Tarasova | 1-0 | 86 | Open |
| 1556 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 1 | Martyna Starosta | Ruben Gideon Koellner | 1-0 | 50 | Open |
| 1557 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 11 | Joakim Nilsson | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 1558 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 10 | Ruben Gideon Koellner | Konstantin Bazarov | 1/2-1/2 | 74 | Open |
| 1559 | 2021-08-01 | Aarhus Chess House Summer | Aarhus DEN | 9.1 | Ruben Gideon Koellner | Lena Georgescu | 1/2-1/2 | 13 | Open |
| 1560 | 2021-07-31 | Aarhus Chess House Summer | Aarhus DEN | 8.1 | Mogens Thuesen | Ruben Gideon Koellner | 1/2-1/2 | 32 | Open |
| 1561 | 2021-07-31 | Aarhus Chess House Summer | Aarhus DEN | 7.1 | Pelle Bank | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 1562 | 2021-07-30 | Aarhus Chess House Summer | Aarhus DEN | 6.1 | Ruben Gideon Koellner | Mikkel Antonsen | 1-0 | 40 | Open |
| 1563 | 2021-07-29 | Aarhus Chess House Summer | Aarhus DEN | 5.1 | Jens Ove Fries-Nielsen | Ruben Gideon Koellner | 0-1 | 48 | Open |
| 1564 | 2021-07-28 | Aarhus Chess House Summer | Aarhus DEN | 4.1 | Ruben Gideon Koellner | Bjorn Ahlander | 1-0 | 40 | Open |
| 1565 | 2021-07-28 | Aarhus Chess House Summer | Aarhus DEN | 3.2 | Hilmir Freyr Heimisson | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 1566 | 2021-07-27 | Aarhus Chess House Summer | Aarhus DEN | 2.2 | Ruben Gideon Koellner | Klaus Berg | 1-0 | 37 | Open |
| 1567 | 2021-07-26 | Aarhus Chess House Summer | Aarhus DEN | 1.2 | Aaron Noah Koellner | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 1568 | 2021-07-18 | Sportland NRW Cup 2021 | Dortmund GER | 9.1 | Ruben Gideon Koellner | Oliver Stork | 1/2-1/2 | 27 | Open |
| 1569 | 2021-07-17 | Sportland NRW Cup 2021 | Dortmund GER | 8.5 | Alexander Krastev | Ruben Gideon Koellner | 1/2-1/2 | 30 | Open |
| 1570 | 2021-07-17 | Sportland NRW Cup 2021 | Dortmund GER | 7.2 | Ruben Gideon Koellner | Mihail Saltaev | 1/2-1/2 | 57 | Open |
| 1571 | 2021-07-16 | Sportland NRW Cup 2021 | Dortmund GER | 6.4 | Marius Deuer | Ruben Gideon Koellner | 0-1 | 63 | Open |
| 1572 | 2021-07-15 | Sportland NRW Cup 2021 | Dortmund GER | 5.3 | Ruben Gideon Koellner | Dennes Abel | 1-0 | 72 | Open |
| 1573 | 2021-07-15 | Sportland NRW Cup 2021 | Dortmund GER | 4.3 | Alessia-Mihaela Ciolacu | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1574 | 2021-07-14 | Sportland NRW Cup 2021 | Dortmund GER | 3.4 | Ruben Gideon Koellner | Moritz Runte | 1/2-1/2 | 46 | Open |
| 1575 | 2021-07-14 | Sportland NRW Cup 2021 | Dortmund GER | 2.2 | Sreyas Payyappat | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 1576 | 2021-07-13 | Sportland NRW Cup 2021 | Dortmund GER | 1.5 | Ruben Gideon Koellner | Thomas Beerdsen | 1/2-1/2 | 23 | Open |
| 1577 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 9 | Bibisara Assaubayeva | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 1578 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 8 | Nodar Lortkipanidze | Ruben Gideon Koellner | 1-0 | 33 | Open |
| 1579 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 7 | Ruben Gideon Koellner | Rafael Leitao | 1-0 | 26 | Open |
| 1580 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 6 | Ruben Gideon Koellner | Frederik Svane | 1-0 | 31 | Open |
| 1581 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 5 | Alexey Maly | Ruben Gideon Koellner | 1-0 | 69 | Open |
| 1582 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 4 | Ruben Gideon Koellner | Siva Mahadevan | 0-1 | 64 | Open |
| 1583 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 3 | Ruben Gideon Koellner | Dennis Wagner | 1-0 | 43 | Open |
| 1584 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 2 | Roman Yanchenko | Ruben Gideon Koellner | 0-1 | 69 | Open |
| 1585 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 1 | Aung Thant Zin | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 1586 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 11 | Ruben Gideon Koellner | Zbigniew Pakleza | 0-1 | 38 | Open |
| 1587 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 10 | Ruben Gideon Koellner | Piotr Mickiewicz | 1-0 | 48 | Open |
| 1588 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 8 | Ruben Gideon Koellner | Darius Viskelis | 0-1 | 45 | Open |
| 1589 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 5 | Praveen Balakrishnan | Ruben Gideon Koellner | 1-0 | 40 | Open |
| 1590 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 4 | Ruben Gideon Koellner | Ismayil Shahaliyev | 1-0 | 44 | Open |
| 1591 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 3 | Georg Von Buelow | Ruben Gideon Koellner | 0-1 | 17 | Open |
| 1592 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 2 | Ruben Gideon Koellner | Srinath Narayanan | 0-1 | 67 | Open |
| 1593 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 1 | Ruben Gideon Koellner | Isuru Alahakoon | 1-0 | 37 | Open |
| 1594 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 9 | Ruben Gideon Koellner | Frank Buchenau | 1-0 | 48 | Open |
| 1595 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 8 | Wagh Suyog | Ruben Gideon Koellner | 1-0 | 40 | Open |
| 1596 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 7 | Ruben Gideon Koellner | Evgenij Kretov | 0-1 | 37 | Open |
| 1597 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 6 | Konstantin Borsuk | Ruben Gideon Koellner | 0-1 | 31 | Open |
| 1598 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 5 | Balazs Csonka | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 1599 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 4 | Ruben Gideon Koellner | Read Samadov | 0-1 | 34 | Open |
| 1600 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 3 | Ruben Gideon Koellner | Oleg Krivonosov | 1/2-1/2 | 56 | Open |
| 1601 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 2 | Yoon-Young Kim | Ruben Gideon Koellner | 0-1 | 56 | Open |
| 1602 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 11 | Alexander Rustemov | Ruben Gideon Koellner | 1-0 | 48 | Open |
| 1603 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 10 | Ruben Gideon Koellner | Humberto L. Blanco Ronquillo | 1-0 | 28 | Open |
| 1604 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 9 | Ruben Gideon Koellner | Deep Sengupta | 0-1 | 25 | Open |
| 1605 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 8 | Ruben Gideon Koellner | Federico Sellitti | 1-0 | 84 | Open |
| 1606 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 7 | Vuk Djordjevic | Ruben Gideon Koellner | 0-1 | 83 | Open |
| 1607 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 6 | Nguyen Hong Anh | Ruben Gideon Koellner | 1-0 | 22 | Open |
| 1608 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 5 | Ruben Gideon Koellner | Leon Livaic | 1-0 | 51 | Open |
| 1609 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 3 | Arystanbek Urazayev | Ruben Gideon Koellner | 1-0 | 66 | Open |
| 1610 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 2 | Ruben Gideon Koellner | Bagyashree Sathe Thipsay | 1-0 | 31 | Open |
| 1611 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 1 | Anton Korobov | Ruben Gideon Koellner | 1-0 | 25 | Open |
| 1612 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 11 | Sandi Stojanovski | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 1613 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 10 | Ranindu Dilshan Liyanage | Ruben Gideon Koellner | 1-0 | 38 | Open |
| 1614 | 2021-05-12 | Mitropa Online Cup 2021 | Tornelo INT | 9.1 | Loic Travadon | Ruben Gideon Koellner | 1-0 | 89 | Open |
| 1615 | 2021-05-11 | Mitropa Online Cup 2021 | Tornelo INT | 8.1 | Ruben Gideon Koellner | Jan Krejci | 0-1 | 68 | Open |
| 1616 | 2021-05-10 | Mitropa Online Cup 2021 | Tornelo INT | 7.1 | Francesco Sonis | Ruben Gideon Koellner | 1-0 | 93 | Open |
| 1617 | 2021-05-09 | Mitropa Online Cup 2021 | Tornelo INT | 6.1 | Ruben Gideon Koellner | Samir Sahidi | 0-1 | 41 | Open |
| 1618 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Harikrishnan.A.Ra | Ruben Gideon Koellner | 0-1 | 99 | Open |
| 1619 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Rasmus Svane | Ruben Gideon Koellner | 1-0 | 60 | Open |
| 1620 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Konstantin Bazarov | Ruben Gideon Koellner | 1-0 | 74 | Open |
| 1621 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Renan do Carmo Reis | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 1622 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Helge Nordahl | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 1623 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Igor Babiy | Ruben Gideon Koellner | 1-0 | 66 | Open |
| 1624 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Dmitry Mischuk | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 1625 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Andras Dankhazi | 0-1 | 46 | Open |
| 1626 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Volkan Yirik | 1-0 | 57 | Open |
| 1627 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Alexandros Papasimakopoulos | 0-1 | 50 | Open |
| 1628 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Andre Ventura Sousa | 0-1 | 58 | Open |
| 1629 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Collin Colbow | 0-1 | 68 | Open |
| 1630 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Alikhan Rashit | 1-0 | 14 | Open |
| 1631 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Samvel Ter-Sahakyan | 0-1 | 37 | Open |
| 1632 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Fy Antenaina Rakotomaharo | 0-1 | 80 | Open |
| 1633 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Ritvars Reimanis | 0-1 | 62 | Open |
| 1634 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Max Warmerdam | 0-1 | 60 | Open |
| 1635 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Piotr Piesik | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 1636 | 2021-05-08 | Titled Arena May 8th 2021 | lichess.org INT | - | Michal Bartel | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 1637 | 2021-05-08 | Mitropa Online Cup 2021 | Tornelo INT | 5.1 | Jernej Spalir | Ruben Gideon Koellner | 1/2-1/2 | 51 | Open |
| 1638 | 2021-05-07 | Mitropa Online Cup 2021 | Tornelo INT | 4.1 | Ruben Gideon Koellner | Gabor Nagy | 1/2-1/2 | 42 | Open |
| 1639 | 2021-05-06 | Mitropa Online Cup 2021 | Tornelo INT | 3.1 | Robert Zelcic | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 1640 | 2021-05-05 | Mitropa Online Cup 2021 | Tornelo INT | 2.1 | Ruben Gideon Koellner | Florian Schwabeneder | 1/2-1/2 | 52 | Open |
| 1641 | 2021-05-04 | Mitropa Online Cup 2021 | Tornelo INT | 1.1 | Ruben Gideon Koellner | Fabian Baenziger | 1-0 | 41 | Open |
| 1642 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 8 | Ruben Gideon Koellner | Ivan Ivanisevic | 0-1 | 41 | Open |
| 1643 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 7 | Ruben Gideon Koellner | Nathan Solon | 1/2-1/2 | 75 | Open |
| 1644 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 6 | Harshavardhan G B | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 1645 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 5 | Omer Faruk Ozer | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1646 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 4 | Ruben Gideon Koellner | Wagh Suyog | 0-1 | 78 | Open |
| 1647 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 2 | Ruben Gideon Koellner | Alejandro Rios Parra | 1-0 | 45 | Open |
| 1648 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 1 | Gata Kamsky | Ruben Gideon Koellner | 1-0 | 53 | Open |
| 1649 | 2021-04-16 | TCh-GER Online Playoffs | PlayChess INT | 1.4 | Denny Lawrenz | Ruben Gideon Koellner | 1/2-1/2 | 37 | Open |
| 1650 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 7 | Jan Vykouk | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 1651 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 6 | Ruben Gideon Koellner | Jan Klimkowski | 0-1 | 77 | Open |
| 1652 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 5 | Ruben Gideon Koellner | Pierre Villegas | 1-0 | 26 | Open |
| 1653 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 4 | Alexandros Papasimakopoulos | Ruben Gideon Koellner | 1-0 | 34 | Open |
| 1654 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 3 | Ruben Gideon Koellner | Azer Mirzoev | 1-0 | 36 | Open |
| 1655 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 2 | Robert Gabriel | Ruben Gideon Koellner | 0-1 | 30 | Open |
| 1656 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 1 | Ruben Gideon Koellner | Mark Timmermans | 0-1 | 56 | Open |
| 1657 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 4 | Levente Vajda | Ruben Gideon Koellner | 1-0 | 66 | Open |
| 1658 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 3 | Ruben Gideon Koellner | Piotr Piesik | 0-1 | 48 | Open |
| 1659 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 2 | Ruben Gideon Koellner | Leon Livaic | 1-0 | 57 | Open |
| 1660 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 1 | Zviad Izoria | Ruben Gideon Koellner | 1/2-1/2 | 43 | Open |
| 1661 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Mahel Boyer | Ruben Gideon Koellner | 1-0 | 61 | Open |
| 1662 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Olga Karavaeva | Ruben Gideon Koellner | 1-0 | 62 | Open |
| 1663 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Tryfon C Gavriel | Ruben Gideon Koellner | 1/2-1/2 | 115 | Open |
| 1664 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Amir Hadzovic | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 1665 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Iulian Baltag | Ruben Gideon Koellner | 0-1 | 14 | Open |
| 1666 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Chukwunonso Oragwu | 1-0 | 59 | Open |
| 1667 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Ahmad Hamad | 1-0 | 51 | Open |
| 1668 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Esat Baglan | 0-1 | 32 | Open |
| 1669 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Bruna Geske | 1-0 | 27 | Open |
| 1670 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Alexander Devaev | 0-1 | 37 | Open |
| 1671 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Artem Sadovsky | 0-1 | 77 | Open |
| 1672 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Konstantin Bazarov | 1/2-1/2 | 53 | Open |
| 1673 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Dmitry Mischuk | 1-0 | 37 | Open |
| 1674 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Alexandr Kostiukov | 0-1 | 39 | Open |
| 1675 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Vesal Hamedi Nia | 0-1 | 41 | Open |
| 1676 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ruben Gideon Koellner | Bogdan-Daniel Deac | 0-1 | 33 | Open |
| 1677 | 2021-04-03 | Titled Arena Apr 3rd 2021 | lichess.org INT | - | Ezio Toniutti | Ruben Gideon Koellner | 0-1 | 49 | Open |
| 1678 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 9 | Ruben Gideon Koellner | Han Schut | 1-0 | 43 | Open |
| 1679 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 8 | Gerald Loew | Ruben Gideon Koellner | 1/2-1/2 | 55 | Open |
| 1680 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 7 | Ruben Gideon Koellner | Harshavardhan G B | 0-1 | 49 | Open |
| 1681 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 6 | Kamil Warchol | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 1682 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 5 | Ruben Gideon Koellner | Zbigniew Wieczorek | 1-0 | 64 | Open |
| 1683 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 4 | Andriy Prydun | Ruben Gideon Koellner | 1-0 | 26 | Open |
| 1684 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 3 | Serhan Berat Ozdemir | Ruben Gideon Koellner | 1-0 | 22 | Open |
| 1685 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 1 | Visakh N R | Ruben Gideon Koellner | 1-0 | 31 | Open |
| 1686 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 10 | Ruben Gideon Koellner | Vjacheslav Weetik | 0-1 | 37 | Open |
| 1687 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 8 | Ruben Gideon Koellner | Meri Arabidze | 1/2-1/2 | 91 | Open |
| 1688 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 7 | Ruben Gideon Koellner | Houji Yao | 1-0 | 54 | Open |
| 1689 | 2021-03-23 | TCh-GER Online Liga 1 GpA | PlayChess INT | 7.4 | Ruben Gideon Koellner | Gerhard Mueller | 1-0 | 56 | Open |
| 1690 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 6 | Aleksandra Goryachkina | Ruben Gideon Koellner | 1-0 | 62 | Open |
| 1691 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 5 | Daniel He | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 1692 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 2 | David Anton Guijarro | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 1693 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 1 | Ruben Gideon Koellner | Arseniy Nesterov | 1/2-1/2 | 58 | Open |
| 1694 | 2021-03-19 | TCh-GER Online Liga 1 GpA | PlayChess INT | 6.4 | Burhanudin Misini | Ruben Gideon Koellner | 1-0 | 30 | Open |
| 1695 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 1 | Ruben Gideon Koellner | Read Samadov | 1-0 | 58 | Open |
| 1696 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Fruzsina Szente Varga | Ruben Gideon Koellner | 1-0 | 18 | Open |
| 1697 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Gerardo Antonio Gracia Alvarez | Ruben Gideon Koellner | 1-0 | 20 | Open |
| 1698 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Ildar F Idrisov | Ruben Gideon Koellner | 1-0 | 57 | Open |
| 1699 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Olga Artemyeva | Ruben Gideon Koellner | 1-0 | 23 | Open |
| 1700 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Fruzsina Szente Varga | 0-1 | 50 | Open |
| 1701 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Kirill Alekseenko | 0-1 | 38 | Open |
| 1702 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Steffen Klug | 1-0 | 33 | Open |
| 1703 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Kamran Shirazi | 0-1 | 41 | Open |
| 1704 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Ruben Gideon Koellner | Michal Tworuszka | 0-1 | 14 | Open |
| 1705 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Toms Kantans | Ruben Gideon Koellner | 1-0 | 46 | Open |
| 1706 | 2021-03-06 | Titled Arena Mar 6th 2021 | lichess.org INT | - | Ricardo D. D`Arruda | Ruben Gideon Koellner | 1-0 | 33 | Open |
| 1707 | 2021-03-05 | TCh-GER Online Liga 1 GpA | PlayChess INT | 5.4 | Ruben Gideon Koellner | Maximilian Heldt | 1-0 | 76 | Open |
| 1708 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 8 | Vlada Sviridova | Ruben Gideon Koellner | 0-1 | 24 | Open |
| 1709 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 7 | Ruben Gideon Koellner | Fiona Steil-Antoni | 0-1 | 54 | Open |
| 1710 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 6 | Dina Belenkaya | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 1711 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 5 | Ruben Gideon Koellner | Artem Legenia | 1-0 | 25 | Open |
| 1712 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 4 | Vladimir Zemerov | Ruben Gideon Koellner | 1-0 | 67 | Open |
| 1713 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 3 | Ruben Gideon Koellner | Vilka Sipila | 0-1 | 53 | Open |
| 1714 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 2 | Artem Koval | Ruben Gideon Koellner | 0-1 | 49 | Open |
| 1715 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 1 | Ruben Gideon Koellner | Shamsiddin Vokhidov | 0-1 | 66 | Open |
| 1716 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 11 | Evgenij Shuvalov | Ruben Gideon Koellner | 1-0 | 69 | Open |
| 1717 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 10 | Ruben Gideon Koellner | Olga Matveeva | 1-0 | 62 | Open |
| 1718 | 2021-02-26 | TCh-GER Online Liga 1 GpA | PlayChess INT | 4.4 | Alexander Steinmueller | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 1719 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 9 | Ruben Gideon Koellner | Paul-Cristian Rusan | 1-0 | 33 | Open |
| 1720 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 8 | Chukwunonso Oragwu | Ruben Gideon Koellner | 0-1 | 50 | Open |
| 1721 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 7 | Ruben Gideon Koellner | Umut Erdem Gunduz | 0-1 | 54 | Open |
| 1722 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 6 | Julian Estrada Nieto | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 1723 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 4 | Ruben Gideon Koellner | Ekaterina Kabanova | 1-0 | 30 | Open |
| 1724 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 2 | Ruben Gideon Koellner | Han Schut | 0-1 | 41 | Open |
| 1725 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 1 | Pavel Smirnov | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 1726 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 10 | Artak Manukian | Ruben Gideon Koellner | 0-1 | 53 | Open |
| 1727 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 9 | Ruben Gideon Koellner | Iulian Baltag | 1-0 | 61 | Open |
| 1728 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 8 | Paul-Cristian Rusan | Ruben Gideon Koellner | 0-1 | 50 | Open |
| 1729 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 6 | Ruben Gideon Koellner | Azer Mirzoev | 0-1 | 25 | Open |
| 1730 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 5 | Ladislav Langner | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 1731 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 4 | Sergi Mingarro Carceller | Ruben Gideon Koellner | 1/2-1/2 | 51 | Open |
| 1732 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 3 | Ruben Gideon Koellner | Alexandr Triapishko | 0-1 | 20 | Open |
| 1733 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 1 | Ruben Gideon Koellner | Parham Maghsoodloo | 0-1 | 48 | Open |
| 1734 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 11 | Marat Denishev | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 1735 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 10 | Ruben Gideon Koellner | George Stoleriu | 0-1 | 84 | Open |
| 1736 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 9 | Ruben Gideon Koellner | Victor Fernandez Barrera | 0-1 | 39 | Open |
| 1737 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 7 | Ruben Gideon Koellner | Darius Viskelis | 1-0 | 34 | Open |
| 1738 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 5 | Ruben Gideon Koellner | Elena Homiakova | 0-1 | 27 | Open |
| 1739 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 4 | Ivan Ivanisevic | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 1740 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 3 | Thomas Christensen | Ruben Gideon Koellner | 0-1 | 48 | Open |
| 1741 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 2 | Ruben Gideon Koellner | Vugar Rasulov | 0-1 | 35 | Open |
| 1742 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 1 | Ruben Gideon Koellner | Chanchal Kumer Ghosh | 1-0 | 39 | Open |
| 1743 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 11 | Ruben Gideon Koellner | Justin Sarkar | 0-1 | 20 | Open |
| 1744 | 2021-02-05 | TCh-GER Online Liga 1 GpA | PlayChess INT | 2.4 | Frank-Martin, Dr. Haas | Ruben Gideon Koellner | 1-0 | 3 | Open |
| 1745 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 8 | Maria Fominykh | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 1746 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 7 | Ruben Gideon Koellner | Grigory Seletsky | 0-1 | 52 | Open |
| 1747 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 6 | Leonardo Duarte | Ruben Gideon Koellner | 1-0 | 68 | Open |
| 1748 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 5 | Ruben Gideon Koellner | Ivan Kalajzic | 1-0 | 54 | Open |
| 1749 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 4 | Kirill Kuderinov | Ruben Gideon Koellner | 1-0 | 59 | Open |
| 1750 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 2 | Ruben Gideon Koellner | Denis Lazavik | 0-1 | 37 | Open |
| 1751 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 1 | Joel Johnson | Ruben Gideon Koellner | 0-1 | 24 | Open |
| 1752 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 11 | Ruben Gideon Koellner | Irina Petrova | 1-0 | 66 | Open |
| 1753 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 10 | Gleb Kaganskiy | Ruben Gideon Koellner | 0-1 | 52 | Open |
| 1754 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 9 | William Schill | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 1755 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 7 | Ruben Gideon Koellner | Jung Min Seo | 0-1 | 87 | Open |
| 1756 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 6 | Alberto Barp | Ruben Gideon Koellner | 0-1 | 48 | Open |
| 1757 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 5 | Vuk Djordjevic | Ruben Gideon Koellner | 1-0 | 26 | Open |
| 1758 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 4 | Ruben Gideon Koellner | Robert Baskin | 1-0 | 29 | Open |
| 1759 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 2 | Ruben Gideon Koellner | Bahadir Ozen | 0-1 | 52 | Open |
| 1760 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 1 | Ruben Gideon Koellner | Wiktoria Smietanska | 1-0 | 35 | Open |
| 1761 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 11 | Ruben Gideon Koellner | Nils Richter | 1-0 | 32 | Open |
| 1762 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 10 | Ruben Gideon Koellner | Polina Gutkovich | 0-1 | 60 | Open |
| 1763 | 2021-01-22 | TCh-GER Online Liga 1 GpA | PlayChess INT | 1.4 | Jonas Lenz | Ruben Gideon Koellner | 1-0 | 67 | Open |
| 1764 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 9 | Alberto Barp | Ruben Gideon Koellner | 1-0 | 97 | Open |
| 1765 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 8 | Ruben Gideon Koellner | Asghar Golizadeh | 1-0 | 37 | Open |
| 1766 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 7 | Pavel-Alexandru Nastore | Ruben Gideon Koellner | 0-1 | 26 | Open |
| 1767 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 6 | Ruben Gideon Koellner | Vladimir Mikhailovsky | 0-1 | 35 | Open |
| 1768 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 3 | Ekaterina Kabanova | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 1769 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 2 | Ruben Gideon Koellner | Pablo Salinas Herrera | 0-1 | 31 | Open |
| 1770 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 1 | Ruben Gideon Koellner | Daria Zaichenko | 1-0 | 32 | Open |
| 1771 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 11 | Ruben Gideon Koellner | Konstantin Peyrer | 0-1 | 31 | Open |
| 1772 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 10 | Pawel Kowalczyk | Ruben Gideon Koellner | 0-1 | 55 | Open |
| 1773 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 9 | Ruben Gideon Koellner | Gregory Shahade | 1-0 | 37 | Open |
| 1774 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 8 | John Curtis | Ruben Gideon Koellner | 0-1 | 21 | Open |
| 1775 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 7 | Ruben Gideon Koellner | Pablo Barrionuevo | 1-0 | 43 | Open |
| 1776 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 6 | Velimir Ivic | Ruben Gideon Koellner | 1-0 | 61 | Open |
| 1777 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 5 | Ruben Gideon Koellner | Renato R. Quintiliano | 0-1 | 36 | Open |
| 1778 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 4 | Ruben Gideon Koellner | Vuk Djordjevic | 1-0 | 35 | Open |
| 1779 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 3 | Patrick Gelbenegger | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 1780 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 2 | Vahap Sanal | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 1781 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 1 | Ruben Gideon Koellner | Pavel Kolar | 1-0 | 66 | Open |
| 1782 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 11 | Ruben Gideon Koellner | Pavel Shkapenko | 0-1 | 51 | Open |
| 1783 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 10 | Jung Min Seo | Ruben Gideon Koellner | 1-0 | 57 | Open |
| 1784 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 9 | Qiyu Zhou | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 1785 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 8 | Ruben Gideon Koellner | Azer Mirzoev | 0-1 | 34 | Open |
| 1786 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 6 | Maryana Huda | Ruben Gideon Koellner | 1/2-1/2 | 77 | Open |
| 1787 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 5 | Ruben Gideon Koellner | Dmitrij Kazmin | 1-0 | 44 | Open |
| 1788 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 3 | Ruben Gideon Koellner | Bojan Maksimovic | 0-1 | 39 | Open |
| 1789 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 2 | Ruben Gideon Koellner | Milton Pantzar | 0-1 | 26 | Open |
| 1790 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 1 | Arsen Kukhmazov | Ruben Gideon Koellner | 0-1 | 50 | Open |
| 1791 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 11 | Ruben Gideon Koellner | Alexander Gelman | 0-1 | 31 | Open |
| 1792 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 10 | Ruben Gideon Koellner | Ryan Amburgy | 1-0 | 66 | Open |
| 1793 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 9 | Armin Musovic | Ruben Gideon Koellner | 1-0 | 34 | Open |
| 1794 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 8 | Ruben Gideon Koellner | Ieuan C Ward | 1-0 | 15 | Open |
| 1795 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 7 | Piotr Piesik | Ruben Gideon Koellner | 1-0 | 62 | Open |
| 1796 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 6 | Ruben Gideon Koellner | Frank Buchenau | 1-0 | 28 | Open |
| 1797 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 5 | Ruben Gideon Koellner | Erdni Urjubdshzirov | 0-1 | 37 | Open |
| 1798 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 4 | Karina Ivanova | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 1799 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 3 | Ruben Gideon Koellner | Vjacheslav Weetik | 0-1 | 39 | Open |
| 1800 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 2 | Ruben Gideon Koellner | Eduard Ashiev | 1-0 | 41 | Open |
| 1801 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 1 | Brandon Jacobson | Ruben Gideon Koellner | 1-0 | 73 | Open |
| 1802 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 11 | Ruben Gideon Koellner | Shanmukha Meruga | 1-0 | 27 | Open |
| 1803 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 10 | Moshe Katzir | Ruben Gideon Koellner | 1/2-1/2 | 39 | Open |
| 1804 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 9 | R. Premnath | Ruben Gideon Koellner | 1-0 | 56 | Open |
| 1805 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 8 | Valery Skatchkov | Ruben Gideon Koellner | 0-1 | 55 | Open |
| 1806 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 7 | Ruben Gideon Koellner | Narmin Khalafova | 1-0 | 66 | Open |
| 1807 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 5 | Ivan Excender Soriano Quispe | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 1808 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 4 | Bao Nghia Dong | Ruben Gideon Koellner | 1/2-1/2 | 66 | Open |
| 1809 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 3 | Ruben Gideon Koellner | Matthew Obrien | 0-1 | 68 | Open |
| 1810 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 2 | Lorenzo Lodici | Ruben Gideon Koellner | 1-0 | 66 | Open |
| 1811 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 20 | Mubassar Uddin | Ruben Gideon Koellner | 1-0 | 26 | Open |
| 1812 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 1 | Bogdan Belyakov | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1813 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 19 | Ruben Gideon Koellner | Mihailo Djokic | 0-1 | 61 | Open |
| 1814 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 18 | Ruben Gideon Koellner | Ritvars Reimanis | 0-1 | 39 | Open |
| 1815 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 17 | Lance Henderson de La Fuente | Ruben Gideon Koellner | 1-0 | 57 | Open |
| 1816 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 15 | Arjoe Loanzon | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 1817 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 14 | Ruben Gideon Koellner | Felix Meissner | 1-0 | 74 | Open |
| 1818 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 12 | Luka Budisavljevic | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 1819 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 11 | Ruben Gideon Koellner | Panagiotis Christodoulou | 1-0 | 51 | Open |
| 1820 | 2020-12-19 | Chess.com Bullet Open 1 | chess.com INT | 10 | Ruben Gideon Koellner | Nikolaos Spyropoulos | 0-1 | 38 | Open |
| 1821 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 8.128 | Pola Parol | Ruben Gideon Koellner | 1-0 | 1 | Open |
| 1822 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 5.121 | Wojciech Przybylski | Ruben Gideon Koellner | 1-0 | 45 | Open |
| 1823 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 4.146 | Ruben Gideon Koellner | Alexandros Papasimakopoulos | 1-0 | 56 | Open |
| 1824 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 3.137 | Mateusz Brozyna | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 1825 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 2.125 | Ruben Gideon Koellner | Joanna Dworakowska | 0-1 | 44 | Open |
| 1826 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 1.6 | Matthias Bluebaum | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 1827 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 9 | Ruben Gideon Koellner | Francisco Orantes Taboada | 0-1 | 59 | Open |
| 1828 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 8 | Ranindu Dilshan Liyanage | Ruben Gideon Koellner | 1-0 | 46 | Open |
| 1829 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 7 | Tymon Ochedzan | Ruben Gideon Koellner | 0-1 | 21 | Open |
| 1830 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 6 | Ruben Gideon Koellner | Leonardo Duarte | 1-0 | 79 | Open |
| 1831 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 5 | Stephan Hansch | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 1832 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 4 | Ruben Gideon Koellner | Vlada Sviridova | 1-0 | 36 | Open |
| 1833 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 3 | Alexey Sarana | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 1834 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 2 | Agoston Juhasz | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 1835 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 1 | Ruben Gideon Koellner | M. Amin Tabatabaei | 0-1 | 27 | Open |
| 1836 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 11 | Erik Ronka | Ruben Gideon Koellner | 0-1 | 64 | Open |
| 1837 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 10 | Ruben Gideon Koellner | Stepan Osinovsky | 1-0 | 51 | Open |
| 1838 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 9 | Meri Arabidze | Ruben Gideon Koellner | 1-0 | 55 | Open |
| 1839 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 8 | Gregory Shahade | Ruben Gideon Koellner | 1-0 | 38 | Open |
| 1840 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 7 | Ruben Gideon Koellner | Juan Carlos Obregon Rivero | 1-0 | 48 | Open |
| 1841 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 6 | Ruben Gideon Koellner | Sarasadat Khademalsharieh | 1-0 | 54 | Open |
| 1842 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 5 | Dmitry Gurevich | Ruben Gideon Koellner | 0-1 | 66 | Open |
| 1843 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 4 | Chamal Gedgafov | Ruben Gideon Koellner | 0-1 | 7 | Open |
| 1844 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 3 | Ruben Gideon Koellner | Jan Klimkowski | 0-1 | 68 | Open |
| 1845 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 1 | Ruben Gideon Koellner | Sergey Grigoriants | 0-1 | 42 | Open |
| 1846 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 11 | Sopio Tereladze | Ruben Gideon Koellner | 0-1 | 64 | Open |
| 1847 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 10 | Ruben Gideon Koellner | Marius Manolache | 0-1 | 72 | Open |
| 1848 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 9 | Pablo Barrionuevo | Ruben Gideon Koellner | 1-0 | 21 | Open |
| 1849 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 8 | Ruben Gideon Koellner | Vjacheslav Weetik | 0-1 | 28 | Open |
| 1850 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 7 | Spas Kozhuharov | Ruben Gideon Koellner | 1/2-1/2 | 56 | Open |
| 1851 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 6 | Mukhammadali Abdurakhmonov | Ruben Gideon Koellner | 1-0 | 26 | Open |
| 1852 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 5 | Ruben Gideon Koellner | Corey Acor | 1/2-1/2 | 90 | Open |
| 1853 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 4 | Ruben Gideon Koellner | Nikolay Noritsyn | 1-0 | 68 | Open |
| 1854 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 3 | Chamal Gedgafov | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 1855 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 11 | Nadya Toncheva | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 1856 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 10 | Ruben Gideon Koellner | Anastasiya Geller | 1-0 | 80 | Open |
| 1857 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 9 | Arnold Mayeregger | Ruben Gideon Koellner | 0-1 | 66 | Open |
| 1858 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 8 | Ruben Gideon Koellner | Julian Estrada Nieto | 1-0 | 72 | Open |
| 1859 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 7 | Varvara Saulina | Ruben Gideon Koellner | 1/2-1/2 | 111 | Open |
| 1860 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 6 | Leon Mazi | Ruben Gideon Koellner | 1-0 | 48 | Open |
| 1861 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 5 | Ruben Gideon Koellner | Nimrod Veinberg | 0-1 | 42 | Open |
| 1862 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 4 | Arthur Muromtsev | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 1863 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 1 | Ruben Gideon Koellner | David Paravyan | 0-1 | 47 | Open |
| 1864 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 11 | Ruben Gideon Koellner | Wojciech Przybylski | 0-1 | 35 | Open |
| 1865 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 10 | Hrvoje Fajdetic | Ruben Gideon Koellner | 0-1 | 31 | Open |
| 1866 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 9 | Ruben Gideon Koellner | Pavel Plotnikov | 0-1 | 29 | Open |
| 1867 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 8 | Wiktoria Smietanska | Ruben Gideon Koellner | 0-1 | 92 | Open |
| 1868 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 6 | Kristina Kim | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 1869 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 4 | Ruben Gideon Koellner | Marek Karas | 0-1 | 61 | Open |
| 1870 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 3 | Wojciech Przybylski | Ruben Gideon Koellner | 1-0 | 30 | Open |
| 1871 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 2 | Ruben Gideon Koellner | Milton Pantzar | 1-0 | 43 | Open |
| 1872 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 1 | Meri Arabidze | Ruben Gideon Koellner | 1-0 | 54 | Open |
| 1873 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 11 | Natalia Zhukova | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 1874 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 10 | Juan Luis Pertinez Soria | Ruben Gideon Koellner | 0-1 | 45 | Open |
| 1875 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 4 | Ruben Gideon Koellner | Anastasiya Geller | 0-1 | 32 | Open |
| 1876 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 3 | Tatiana Bogumil | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 1877 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 2 | Ruben Gideon Koellner | Viachaslau Zarubitski | 0-1 | 61 | Open |
| 1878 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 1 | Ruben Gideon Koellner | Momchil Petkov | 0-1 | 79 | Open |
| 1879 | 2020-10-18 | CD Meyer Gedenkturnier | Bremen GER | 9.4 | Alexandr Fier | Ruben Gideon Koellner | 1/2-1/2 | 61 | Open |
| 1880 | 2020-10-17 | CD Meyer Gedenkturnier | Bremen GER | 8.3 | Ruben Gideon Koellner | Nikolas Wachinger | 1/2-1/2 | 66 | Open |
| 1881 | 2020-10-16 | CD Meyer Gedenkturnier | Bremen GER | 7.2 | Romain Edouard | Ruben Gideon Koellner | 1/2-1/2 | 34 | Open |
| 1882 | 2020-10-15 | CD Meyer Gedenkturnier | Bremen GER | 6.3 | Dmitrij Kollars | Ruben Gideon Koellner | 1/2-1/2 | 30 | Open |
| 1883 | 2020-10-14 | CD Meyer Gedenkturnier | Bremen GER | 5.4 | Ruben Gideon Koellner | Spartak Grigorian | 1-0 | 71 | Open |
| 1884 | 2020-10-13 | CD Meyer Gedenkturnier | Bremen GER | 4.1 | Alexander Donchenko | Ruben Gideon Koellner | 1-0 | 61 | Open |
| 1885 | 2020-10-12 | CD Meyer Gedenkturnier | Bremen GER | 3.3 | Ruben Gideon Koellner | Gabor Papp | 1-0 | 46 | Open |
| 1886 | 2020-10-11 | CD Meyer Gedenkturnier | Bremen GER | 2.7 | Ruben Gideon Koellner | David Kardoeus | 1-0 | 38 | Open |
| 1887 | 2020-10-10 | CD Meyer Gedenkturnier | Bremen GER | 1.11 | Sreyas Payyappat | Ruben Gideon Koellner | 1/2-1/2 | 58 | Open |
| 1888 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 9 | Ruben Gideon Koellner | Guillermo Baches Garcia | 0-1 | 38 | Open |
| 1889 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 8 | Gianmarco Leiva | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 1890 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 7 | Marcin Sieciechowicz | Ruben Gideon Koellner | 1-0 | 53 | Open |
| 1891 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 6 | Ruben Gideon Koellner | Aref Vasli | 1-0 | 75 | Open |
| 1892 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 5 | Conrad Holt | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 1893 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 4 | Johnatan Bakalchuk | Ruben Gideon Koellner | 1/2-1/2 | 47 | Open |
| 1894 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 3 | Ruben Gideon Koellner | Pedro Ramon Martinez Reyes | 1-0 | 42 | Open |
| 1895 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 2 | Ruben Gideon Koellner | Sergey D. Rodchenkov | 1-0 | 46 | Open |
| 1896 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 1 | Dennis Wagner | Ruben Gideon Koellner | 1-0 | 23 | Open |
| 1897 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 10 | Ruben Gideon Koellner | Anatoly Borodavkin | 1-0 | 31 | Open |
| 1898 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 9 | Milosz Szpar | Ruben Gideon Koellner | 0-1 | 0 | Open |
| 1899 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 8 | Ruben Gideon Koellner | Olga Artemyeva | 1-0 | 78 | Open |
| 1900 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 7 | Ruben Gideon Koellner | Antonio Arencibia Monduy | 0-1 | 52 | Open |
| 1901 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 6 | L M S T De Silva | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 1902 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 5 | Ruben Gideon Koellner | Christiansen-Danut-Eugen Sava | 1-0 | 26 | Open |
| 1903 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 4 | Gianmarco Leiva | Ruben Gideon Koellner | 1-0 | 53 | Open |
| 1904 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 3 | Ruben Gideon Koellner | Aditya Mittal | 0-1 | 55 | Open |
| 1905 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 2 | Anatoly Bykhovsky | Ruben Gideon Koellner | 1-0 | 30 | Open |
| 1906 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 15 | Ruben Gideon Koellner | Facundo Vazquez | 0-1 | 35 | Open |
| 1907 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 14 | Mike Sailer | Ruben Gideon Koellner | 1/2-1/2 | 105 | Open |
| 1908 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 12 | Han Schut | Ruben Gideon Koellner | 1-0 | 57 | Open |
| 1909 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 11 | Ruben Gideon Koellner | Sergey D. Rodchenkov | 0-1 | 47 | Open |
| 1910 | 2020-10-03 | Speed Chess Super Swiss | chess.com INT | 10 | Ruben Gideon Koellner | Rakesh Kulkarni | 0-1 | 61 | Open |
| 1911 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 9 | Sergey Shtyka | Ruben Gideon Koellner | 0-1 | 26 | Open |
| 1912 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 8 | Ruben Gideon Koellner | Evgenij Shuvalov | 1/2-1/2 | 72 | Open |
| 1913 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 7 | Jarmo Hartikainen | Ruben Gideon Koellner | 0-1 | 48 | Open |
| 1914 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 6 | Ruben Gideon Koellner | Mike Sailer | 1/2-1/2 | 42 | Open |
| 1915 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 5 | Sergey Nadeev | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 1916 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 4 | Ruben Gideon Koellner | Vantika Agrawal | 0-1 | 53 | Open |
| 1917 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 3 | Ruben Gideon Koellner | Ivan Excender Soriano Quispe | 1-0 | 35 | Open |
| 1918 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 2 | Martin Horak | Ruben Gideon Koellner | 1-0 | 31 | Open |
| 1919 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 1 | Grigory Gusarov | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 1920 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 10 | Narmin Khalafova | Ruben Gideon Koellner | 1-0 | 49 | Open |
| 1921 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 9 | Ruben Gideon Koellner | Margarita Filippova | 0-1 | 37 | Open |
| 1922 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 8 | Ivan Excender Soriano Quispe | Ruben Gideon Koellner | 1-0 | 53 | Open |
| 1923 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 7 | Ramil Sadykov | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 1924 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 5 | Ruben Gideon Koellner | Pavel Eljanov | 1-0 | 29 | Open |
| 1925 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 4 | Momchil Petkov | Ruben Gideon Koellner | 1/2-1/2 | 110 | Open |
| 1926 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 3 | Felix Hindermann | Ruben Gideon Koellner | 0-1 | 77 | Open |
| 1927 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 2 | Ruben Gideon Koellner | Martin Horak | 1-0 | 19 | Open |
| 1928 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 1 | Ruben Gideon Koellner | Anna Kubicka | 0-1 | 31 | Open |
| 1929 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 10 | Ruben Gideon Koellner | Konstantin Loy | 1-0 | 49 | Open |
| 1930 | 2020-09-15 | Titled Tuesday 15th Sept | chess.com INT | 9 | Ruben Gideon Koellner | Malik Curriah | 1-0 | 33 | Open |
| 1931 | 2020-09-15 | Titled Tuesday 15th Sept | chess.com INT | 8 | Ruben Gideon Koellner | Wojciech Przybylski | 0-1 | 61 | Open |
| 1932 | 2020-09-15 | Titled Tuesday 15th Sept | chess.com INT | 7 | Alvaro Donatti | Ruben Gideon Koellner | 0-1 | 21 | Open |
| 1933 | 2020-09-15 | Titled Tuesday 15th Sept | chess.com INT | 6 | Madara Golsta | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 1934 | 2020-09-15 | Titled Tuesday 15th Sept | chess.com INT | 4 | Jan Jodilyn Fronda | Ruben Gideon Koellner | 1-0 | 28 | Open |
| 1935 | 2020-09-15 | Titled Tuesday 15th Sept | chess.com INT | 3 | Ruben Gideon Koellner | Emilia Zavivaeva | 1-0 | 33 | Open |
| 1936 | 2020-09-15 | Titled Tuesday 15th Sept | chess.com INT | 2 | Silvio Eduardo Oliveira | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 1937 | 2020-09-15 | Titled Tuesday 15th Sept | chess.com INT | 1 | Lefong Hua | Ruben Gideon Koellner | 1-0 | 79 | Open |
| 1938 | 2020-09-08 | Titled Tuesday 8th Sept | chess.com INT | 9 | Nadezhda Antonova | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 1939 | 2020-09-08 | Titled Tuesday 8th Sept | chess.com INT | 8 | Daniel Yoshito Ikejiri | Ruben Gideon Koellner | 1/2-1/2 | 69 | Open |
| 1940 | 2020-09-08 | Titled Tuesday 8th Sept | chess.com INT | 7 | Ruben Gideon Koellner | Winston Joseph R Silva | 1-0 | 53 | Open |
| 1941 | 2020-09-08 | Titled Tuesday 8th Sept | chess.com INT | 6 | Ruben Gideon Koellner | Olga Artemyeva | 0-1 | 27 | Open |
| 1942 | 2020-09-08 | Titled Tuesday 8th Sept | chess.com INT | 5 | Ward Al-Tarboush | Ruben Gideon Koellner | 1-0 | 81 | Open |
| 1943 | 2020-09-08 | Titled Tuesday 8th Sept | chess.com INT | 4 | Alexandr Ledakov | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 1944 | 2020-09-08 | Titled Tuesday 8th Sept | chess.com INT | 3 | Ruben Gideon Koellner | Emilia Zavivaeva | 1-0 | 55 | Open |
| 1945 | 2020-09-08 | Titled Tuesday 8th Sept | chess.com INT | 2 | Ioannis Kalogeris | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 1946 | 2020-09-08 | Titled Tuesday 8th Sept | chess.com INT | 1 | Ruben Gideon Koellner | Vasiliy Korchmar | 0-1 | 45 | Open |
| 1947 | 2020-09-08 | Titled Tuesday 8th Sept | chess.com INT | 10 | Ruben Gideon Koellner | Maximiliano Perez | 0-1 | 27 | Open |
| 1948 | 2020-09-01 | Titled Tuesday 1st Sept | chess.com INT | 9 | Ruben Gideon Koellner | Margarita Filippova | 0-1 | 44 | Open |
| 1949 | 2020-09-01 | Titled Tuesday 1st Sept | chess.com INT | 8 | Ruben Gideon Koellner | Ayan Allahverdiyeva | 0-1 | 40 | Open |
| 1950 | 2020-09-01 | Titled Tuesday 1st Sept | chess.com INT | 6 | Robert Baskin | Ruben Gideon Koellner | 1-0 | 31 | Open |
| 1951 | 2020-09-01 | Titled Tuesday 1st Sept | chess.com INT | 5 | Ruben Gideon Koellner | Lukas Winterberg | 1/2-1/2 | 86 | Open |
| 1952 | 2020-09-01 | Titled Tuesday 1st Sept | chess.com INT | 4 | Nitai Leve | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 1953 | 2020-09-01 | Titled Tuesday 1st Sept | chess.com INT | 3 | Ruben Gideon Koellner | Evgenij Novikov | 0-1 | 34 | Open |
| 1954 | 2020-09-01 | Titled Tuesday 1st Sept | chess.com INT | 2 | Ruben Gideon Koellner | Bernardo Vainzoff Sztokbant | 1-0 | 61 | Open |
| 1955 | 2020-09-01 | Titled Tuesday 1st Sept | chess.com INT | 1 | Deep Sengupta | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 1956 | 2020-09-01 | Titled Tuesday 1st Sept | chess.com INT | 10 | Attila Turzo | Ruben Gideon Koellner | 1-0 | 26 | Open |
| 1957 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 9 | Ibrahim Tofan | Ruben Gideon Koellner | 0-1 | 68 | Open |
| 1958 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 8 | Ruben Gideon Koellner | Jorge Carlos Antonio | 1-0 | 55 | Open |
| 1959 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 7 | Mykhaylo Kepeshchuk | Ruben Gideon Koellner | 1-0 | 87 | Open |
| 1960 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 6 | Ruben Gideon Koellner | Erick Zhao | 0-1 | 86 | Open |
| 1961 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 5 | Malik Curriah | Ruben Gideon Koellner | 0-1 | 28 | Open |
| 1962 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 4 | Boris Abrashkin | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 1963 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 2 | Marcin Sieciechowicz | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 1964 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 1 | Ruben Gideon Koellner | Viorel Iordachescu | 0-1 | 45 | Open |
| 1965 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 10 | Ruben Gideon Koellner | David Itkin | 0-1 | 68 | Open |
| 1966 | 2020-08-22 | ch-GER DEM 2020 | Magdeburg GER | 9.5 | Ruben Gideon Koellner | Dominik Mueller | 1-0 | 40 | Open |
| 1967 | 2020-08-21 | ch-GER DEM 2020 | Magdeburg GER | 8.14 | Tobias Voege | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 1968 | 2020-08-20 | ch-GER DEM 2020 | Magdeburg GER | 7.15 | Ruben Gideon Koellner | Peter Michalowski | 1-0 | 51 | Open |
| 1969 | 2020-08-20 | ch-GER DEM 2020 | Magdeburg GER | 6.15 | Marc Gustain | Ruben Gideon Koellner | 1/2-1/2 | 62 | Open |
| 1970 | 2020-08-19 | ch-GER DEM 2020 | Magdeburg GER | 5.16 | Ruben Gideon Koellner | Felix Schulte | 1/2-1/2 | 63 | Open |
| 1971 | 2020-08-18 | ch-GER DEM 2020 | Magdeburg GER | 4.12 | Niklas Geue | Ruben Gideon Koellner | 1-0 | 64 | Open |
| 1972 | 2020-08-18 | ch-GER DEM 2020 | Magdeburg GER | 3.11 | Ruben Gideon Koellner | Herbert Bastian | 0-1 | 93 | Open |
| 1973 | 2020-08-17 | ch-GER DEM 2020 | Magdeburg GER | 2.4 | Ashot Parvanyan | Ruben Gideon Koellner | 1-0 | 24 | Open |
| 1974 | 2020-08-16 | ch-GER DEM 2020 | Magdeburg GER | 1.14 | Ruben Gideon Koellner | Isaak Falke | 1-0 | 25 | Open |
| 1975 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 9 | Ruben Gideon Koellner | Robert Hess | 1-0 | 46 | Open |
| 1976 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 8 | Nikola Djukic | Ruben Gideon Koellner | 1/2-1/2 | 85 | Open |
| 1977 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 7 | Ruben Gideon Koellner | Ryo Chen | 1-0 | 22 | Open |
| 1978 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 4 | Ruben Gideon Koellner | Alexander Timerkhanov | 0-1 | 34 | Open |
| 1979 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 3 | Etienne Bacrot | Ruben Gideon Koellner | 1-0 | 24 | Open |
| 1980 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 2 | Mihnea Costachi | Ruben Gideon Koellner | 0-1 | 61 | Open |
| 1981 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 1 | Ruben Gideon Koellner | Nikolay Ogloblin | 1-0 | 67 | Open |
| 1982 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 10 | Ruben Gideon Koellner | Artyom Manukyan | 0-1 | 27 | Open |
| 1983 | 2020-08-04 | Titled Tue 4th Aug 2pm | chess.com INT | 9 | Oleksandr Prokhorov | Ruben Gideon Koellner | 1-0 | 40 | Open |
| 1984 | 2020-08-04 | Titled Tue 4th Aug 10am | chess.com INT | 9 | Ruben Gideon Koellner | Chelsie Monica Ignesias Sihite | 0-1 | 53 | Open |
| 1985 | 2020-08-04 | Titled Tue 4th Aug 2pm | chess.com INT | 8 | Ruben Gideon Koellner | Milton Pantzar | 0-1 | 37 | Open |
| 1986 | 2020-08-04 | Titled Tue 4th Aug 2pm | chess.com INT | 7 | Ruben Gideon Koellner | Marcelo Villalba | 0-1 | 88 | Open |
| 1987 | 2020-08-04 | Titled Tue 4th Aug 10am | chess.com INT | 7 | Ruben Gideon Koellner | Omya Vidyarthi | 1/2-1/2 | 73 | Open |
| 1988 | 2020-08-04 | Titled Tue 4th Aug 10am | chess.com INT | 6 | Mihailo Djokic | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 1989 | 2020-08-04 | Titled Tue 4th Aug 2pm | chess.com INT | 6 | Aksithi Eswaran | Ruben Gideon Koellner | 0-1 | 80 | Open |
| 1990 | 2020-08-04 | Titled Tue 4th Aug 2pm | chess.com INT | 5 | Ruben Gideon Koellner | Yovann Gatineau | 1-0 | 36 | Open |
| 1991 | 2020-08-04 | Titled Tue 4th Aug 10am | chess.com INT | 5 | Ruben Gideon Koellner | Adrian Musat | 1/2-1/2 | 47 | Open |
| 1992 | 2020-08-04 | Titled Tue 4th Aug 10am | chess.com INT | 4 | Kirk Ghazarian | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 1993 | 2020-08-04 | Titled Tue 4th Aug 2pm | chess.com INT | 4 | Maria Florencia Fernandez | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 1994 | 2020-08-04 | Titled Tue 4th Aug 10am | chess.com INT | 3 | Ruben Gideon Koellner | Apolo De Souza Sa | 1-0 | 68 | Open |
| 1995 | 2020-08-04 | Titled Tue 4th Aug 10am | chess.com INT | 2 | Margarita Potapova | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 1996 | 2020-08-04 | Titled Tue 4th Aug 10am | chess.com INT | 1 | Ruben Gideon Koellner | Janak Awatramani | 0-1 | 32 | Open |
| 1997 | 2020-08-04 | Titled Tue 4th Aug 2pm | chess.com INT | 1 | Alexandru-Vasile David | Ruben Gideon Koellner | 1-0 | 34 | Open |
| 1998 | 2020-08-04 | Titled Tue 4th Aug 10am | chess.com INT | 10 | Igor Da Paz Palacio | Ruben Gideon Koellner | 1-0 | 38 | Open |
| 1999 | 2020-08-04 | Titled Tue 4th Aug 2pm | chess.com INT | 10 | Ruben Gideon Koellner | Alvaro Donatti | 0-1 | 51 | Open |
| 2000 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 9 | Ruben Gideon Koellner | Sasa Vidovic | 1-0 | 42 | Open |
| 2001 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 8 | Ruben Gideon Koellner | Galina Mikheeva | 1-0 | 41 | Open |
| 2002 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 7 | Yudel Romero Arzuaga | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 2003 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 6 | Ruben Gideon Koellner | Michael Shahade | 1-0 | 29 | Open |
| 2004 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 5 | Ruben Gideon Koellner | Alexander Andres Hernandez Jimenez | 1-0 | 34 | Open |
| 2005 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 4 | Margarita Zvereva | Ruben Gideon Koellner | 1-0 | 56 | Open |
| 2006 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 3 | Ruben Gideon Koellner | Alberto Quintin Navarro | 0-1 | 27 | Open |
| 2007 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 2 | Viktor Skliarov | Ruben Gideon Koellner | 1/2-1/2 | 63 | Open |
| 2008 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 1 | Alexandr Triapishko | Ruben Gideon Koellner | 1-0 | 40 | Open |
| 2009 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 10 | Viktor Dmitrenko | Ruben Gideon Koellner | 1-0 | 79 | Open |
| 2010 | 2020-07-14 | 33rd Leon Blitz Open 2020 | chess.com INT | 9 | Krikor Sevag Mekhitarian | Ruben Gideon Koellner | 1-0 | 70 | Open |
| 2011 | 2020-07-14 | 33rd Leon Blitz Open 2020 | chess.com INT | 8 | Ruben Gideon Koellner | Momchil Petkov | 0-1 | 64 | Open |
| 2012 | 2020-07-14 | 33rd Leon Blitz Open 2020 | chess.com INT | 7 | Rout Padmini | Ruben Gideon Koellner | 0-1 | 69 | Open |
| 2013 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 7 | Ruben Gideon Koellner | Kjell Petersson | 1-0 | 26 | Open |
| 2014 | 2020-07-14 | 33rd Leon Blitz Open 2020 | chess.com INT | 6 | Ruben Gideon Koellner | Arjun Kalyan | 0-1 | 36 | Open |
| 2015 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 6 | Onno Elgersma | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 2016 | 2020-07-14 | 33rd Leon Blitz Open 2020 | chess.com INT | 5 | Guillaume Lamard | Ruben Gideon Koellner | 0-1 | 63 | Open |
| 2017 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 5 | Mohota Swati | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 2018 | 2020-07-14 | 33rd Leon Blitz Open 2020 | chess.com INT | 4 | Marcelo Villalba | Ruben Gideon Koellner | 0-1 | 63 | Open |
| 2019 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 4 | Ruben Gideon Koellner | Ulrich Zenker | 1-0 | 36 | Open |
| 2020 | 2020-07-14 | 33rd Leon Blitz Open 2020 | chess.com INT | 2 | Ruben Gideon Koellner | Gahan M G | 1-0 | 27 | Open |
| 2021 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 1 | Benjamin Bujisho | Ruben Gideon Koellner | 1-0 | 22 | Open |
| 2022 | 2020-07-14 | 33rd Leon Blitz Open 2020 | chess.com INT | 1 | Anatoly Bykhovsky | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 2023 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 10 | Ruben Gideon Koellner | Orest Vovk | 0-1 | 56 | Open |
| 2024 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 9 | Ruben Gideon Koellner | Sofiia Hryzlova | 0-1 | 75 | Open |
| 2025 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 8 | Myroslava Hrabinska | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 2026 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 7 | Ruben Gideon Koellner | Eric Rosen | 0-1 | 44 | Open |
| 2027 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 6 | Valdis Tronenkovs | Ruben Gideon Koellner | 1-0 | 57 | Open |
| 2028 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 5 | Ruben Gideon Koellner | Renate Vidruska | 1-0 | 16 | Open |
| 2029 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 4 | Jagadeesh Siddharth | Ruben Gideon Koellner | 1-0 | 34 | Open |
| 2030 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 3 | Margarita Potapova | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 2031 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 2 | Ruben Gideon Koellner | Konstantinos Markidis | 1-0 | 70 | Open |
| 2032 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 10 | Matheus Garcett Souza dos Santos | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 2033 | 2020-06-30 | Titled Tuesday 30th June | chess.com INT | 9 | Ruben Gideon Koellner | Jose Antonio Herrera Reyes | 1-0 | 24 | Open |
| 2034 | 2020-06-30 | Titled Tuesday 30th June | chess.com INT | 8 | Yuliia Osmak | Ruben Gideon Koellner | 1-0 | 15 | Open |
| 2035 | 2020-06-30 | Titled Tuesday 30th June | chess.com INT | 7 | Ruben Gideon Koellner | Pedro Henrique Alves Nascimento | 1-0 | 45 | Open |
| 2036 | 2020-06-30 | Titled Tuesday 30th June | chess.com INT | 6 | Ruben Gideon Koellner | Oleksandr Prokhorov | 1-0 | 54 | Open |
| 2037 | 2020-06-30 | Titled Tuesday 30th June | chess.com INT | 5 | Renate Vidruska | Ruben Gideon Koellner | 1-0 | 38 | Open |
| 2038 | 2020-06-30 | Titled Tuesday 30th June | chess.com INT | 4 | Mubassar Uddin | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 2039 | 2020-06-30 | Titled Tuesday 30th June | chess.com INT | 2 | Zaur Mammadov | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 2040 | 2020-06-30 | Titled Tuesday 30th June | chess.com INT | 10 | Niranjan Navalgund | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 2041 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 9 | Ruben Gideon Koellner | David Sh. Gevorgyan | 0-1 | 27 | Open |
| 2042 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 7 | Ruben Gideon Koellner | Daniel Rangel | 0-1 | 50 | Open |
| 2043 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 5 | Mikhail Kobalia | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 2044 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 3 | Bernardo Vainzoff Sztokbant | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 2045 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 2 | Nino Khomeriki | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 2046 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 10 | Ruben Gideon Koellner | Aaron Cooper | 1-0 | 51 | Open |
| 2047 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 9 | Ruben Gideon Koellner | Matheus Garcett Souza dos Santos | 1-0 | 69 | Open |
| 2048 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 8 | Han Schut | Ruben Gideon Koellner | 1-0 | 53 | Open |
| 2049 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 7 | Ruben Gideon Koellner | Rachid Schrik | 0-1 | 57 | Open |
| 2050 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 6 | Lela Javakhishvili | Ruben Gideon Koellner | 1-0 | 32 | Open |
| 2051 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 5 | Ruben Gideon Koellner | Petra Papp | 1/2-1/2 | 74 | Open |
| 2052 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 4 | Igor Glek | Ruben Gideon Koellner | 1-0 | 23 | Open |
| 2053 | 2020-06-02 | Titled Tuesday 2nd June | chess.com INT | 8 | Ruben Gideon Koellner | Roza Idrisova | 1-0 | 41 | Open |
| 2054 | 2020-06-02 | Titled Tuesday 2nd June | chess.com INT | 5 | Amina Kairbekova | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 2055 | 2020-06-02 | Titled Tuesday 2nd June | chess.com INT | 4 | Ruben Gideon Koellner | Panagiotis Christodoulou | 0-1 | 75 | Open |
| 2056 | 2020-06-02 | Titled Tuesday 2nd June | chess.com INT | 3 | Ruben Gideon Koellner | Oliver Wartiovaara | 1-0 | 36 | Open |
| 2057 | 2020-06-02 | Titled Tuesday 2nd June | chess.com INT | 1 | Jose Antonio Herrera Reyes | Ruben Gideon Koellner | 1-0 | 25 | Open |
| 2058 | 2020-06-02 | Titled Tuesday 2nd June | chess.com INT | 10 | Daniel Fischer | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 2059 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 9 | Bryan Xie | Ruben Gideon Koellner | 0-1 | 53 | Open |
| 2060 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 7 | Slaven Pastar | Ruben Gideon Koellner | 1-0 | 30 | Open |
| 2061 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 5 | Ruben Gideon Koellner | Kacper Polok | 1-0 | 21 | Open |
| 2062 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 3 | Gregory Shahade | Ruben Gideon Koellner | 1-0 | 25 | Open |
| 2063 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 2 | Ruben Gideon Koellner | Kemel Antonio Gallo Garcia | 1-0 | 26 | Open |
| 2064 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 1 | Ruben Gideon Koellner | Konstantin Borsuk | 1/2-1/2 | 75 | Open |
| 2065 | 2020-05-19 | Titled Tuesday 19th May | chess.com INT | 9 | Ruben Gideon Koellner | Jesus Marcial Torres Cueto | 0-1 | 17 | Open |
| 2066 | 2020-05-19 | Titled Tuesday 19th May | chess.com INT | 8 | Ruben Gideon Koellner | Orlen Ruiz Sanchez | 1-0 | 74 | Open |
| 2067 | 2020-05-19 | Titled Tuesday 19th May | chess.com INT | 6 | Ruben Gideon Koellner | Ana Berke | 1-0 | 19 | Open |
| 2068 | 2020-05-19 | Titled Tuesday 19th May | chess.com INT | 4 | Miranda Mikadze | Ruben Gideon Koellner | 1-0 | 38 | Open |
| 2069 | 2020-05-19 | Titled Tuesday 19th May | chess.com INT | 3 | Ruben Gideon Koellner | Divya Deshmukh | 0-1 | 35 | Open |
| 2070 | 2020-05-19 | Titled Tuesday 19th May | chess.com INT | 2 | Ruben Gideon Koellner | Christophe Sochacki | 0-1 | 45 | Open |
| 2071 | 2020-05-19 | Titled Tuesday 19th May | chess.com INT | 1 | Nurgyul Salimova | Ruben Gideon Koellner | 1/2-1/2 | 80 | Open |
| 2072 | 2020-05-19 | Titled Tuesday 19th May | chess.com INT | 10 | Mihai-Lucian Grunberg | Ruben Gideon Koellner | 1-0 | 28 | Open |
| 2073 | 2020-01-06 | 32nd Staufer-Open 2020 | Schwaebisch Gmuend GER | 9.4 | Ruben Gideon Koellner | Jaroslaw Krassowizkij | 1/2-1/2 | 18 | Open |
| 2074 | 2020-01-05 | 32nd Staufer-Open 2020 | Schwaebisch Gmuend GER | 8.6 | Ruben Gideon Koellner | Roven Vogel | 1-0 | 34 | Open |
| 2075 | 2020-01-05 | 32nd Staufer-Open 2020 | Schwaebisch Gmuend GER | 7.21 | Jens Mink | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 2076 | 2020-01-03 | 32nd Staufer-Open 2020 | Schwaebisch Gmuend GER | 3.3 | Evgeny E. Vorobiov | Ruben Gideon Koellner | 1-0 | 59 | Open |
| 2077 | 2020-01-02 | 32nd Staufer-Open 2020 | Schwaebisch Gmuend GER | 2.19 | Ruben Gideon Koellner | Florian Amtmann | 1-0 | 23 | Open |
| 2078 | 2020-01-02 | 32nd Staufer-Open 2020 | Schwaebisch Gmuend GER | 1.32 | Christian Hoethe | Ruben Gideon Koellner | 0-1 | 22 | Open |
| 2079 | 2019-11-24 | Heusenstamm Schloss Open | Heusenstamm GER | 7.5 | Lev Gutman | Ruben Gideon Koellner | 1/2-1/2 | 43 | Open |
| 2080 | 2019-11-23 | Heusenstamm Schloss Open | Heusenstamm GER | 5.8 | Vladimir Podat | Ruben Gideon Koellner | 0-1 | 45 | Open |
| 2081 | 2019-11-23 | Heusenstamm Schloss Open | Heusenstamm GER | 4.2 | Ruben Gideon Koellner | Vitaly Kunin | 1/2-1/2 | 60 | Open |
| 2082 | 2019-11-22 | Heusenstamm Schloss Open | Heusenstamm GER | 3.15 | Jan Boder | Ruben Gideon Koellner | 0-1 | 30 | Open |
| 2083 | 2019-11-03 | 23rd OIBM 2019 | Tegernsee GER | 9.24 | Rout Padmini | Ruben Gideon Koellner | 1-0 | 49 | Open |
| 2084 | 2019-11-02 | 23rd OIBM 2019 | Tegernsee GER | 8.6 | Ruben Gideon Koellner | Fernando Peralta | 0-1 | 25 | Open |
| 2085 | 2019-11-01 | 23rd OIBM 2019 | Tegernsee GER | 7.17 | Ruben Gideon Koellner | Lev Yankelevich | 1-0 | 85 | Open |
| 2086 | 2019-10-31 | 23rd OIBM 2019 | Tegernsee GER | 6.33 | Aggarwal Vansh | Ruben Gideon Koellner | 0-1 | 65 | Open |
| 2087 | 2019-10-27 | 23rd OIBM 2019 | Tegernsee GER | 2.12 | Grzegorz Nasuta | Ruben Gideon Koellner | 1-0 | 25 | Open |
| 2088 | 2019-08-10 | Lueneburg GM 2019 | Lueneburg GER | 9.4 | Ruben Gideon Koellner | Jakob Leon Pajeken | 0-1 | 0 | Open |
| 2089 | 2019-08-09 | Lueneburg GM 2019 | Lueneburg GER | 8.2 | Jha Sriram | Ruben Gideon Koellner | 1/2-1/2 | 35 | Open |
| 2090 | 2019-08-08 | Lueneburg GM 2019 | Lueneburg GER | 7.5 | Ruben Gideon Koellner | Sergei Ovsejevitsch | 0-1 | 43 | Open |
| 2091 | 2019-08-07 | Lueneburg GM 2019 | Lueneburg GER | 6.1 | Jari Reuker | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 2092 | 2019-08-06 | Lueneburg GM 2019 | Lueneburg GER | 5.5 | Evgeny E. Vorobiov | Ruben Gideon Koellner | 1/2-1/2 | 41 | Open |
| 2093 | 2019-08-05 | Lueneburg GM 2019 | Lueneburg GER | 4.2 | Ruben Gideon Koellner | Christian Polster | 1/2-1/2 | 48 | Open |
| 2094 | 2019-08-04 | Lueneburg GM 2019 | Lueneburg GER | 3.4 | Kassa Korley | Ruben Gideon Koellner | 1-0 | 60 | Open |
| 2095 | 2019-08-03 | Lueneburg GM 2019 | Lueneburg GER | 2.3 | Ruben Gideon Koellner | Nikolas Wachinger | 1-0 | 44 | Open |
| 2096 | 2019-07-16 | 47th Sparkassen Open | Dortmund GER | 4.19 | Christian Koschetzki | Ruben Gideon Koellner | 1-0 | 48 | Open |
| 2097 | 2019-07-15 | 47th Sparkassen Open | Dortmund GER | 3.3 | Ruben Gideon Koellner | Peter Buchholz | 1-0 | 30 | Open |
| 2098 | 2019-07-14 | 47th Sparkassen Open | Dortmund GER | 2.2 | Wolfgang Prueske | Ruben Gideon Koellner | 1-0 | 27 | Open |
| 2099 | 2019-07-13 | 47th Sparkassen Open | Dortmund GER | 1.9 | Ruben Gideon Koellner | Gerardo Artola Pola | 1/2-1/2 | 32 | Open |
| 2100 | 2019-07-06 | Chess House Summer IM | Aarhus DEN | 9.5 | Klaus Berg | Ruben Gideon Koellner | 1-0 | 45 | Open |
| 2101 | 2019-07-05 | Chess House Summer IM | Aarhus DEN | 8.1 | Ruben Gideon Koellner | Jonathan Carlstedt | 0-1 | 64 | Open |
| 2102 | 2019-07-04 | Chess House Summer IM | Aarhus DEN | 7.3 | Nicolai Kvist Brondt | Ruben Gideon Koellner | 0-1 | 73 | Open |
| 2103 | 2019-07-04 | Chess House Summer IM | Aarhus DEN | 6.4 | Ruben Gideon Koellner | Yevhen Odnorozhenko | 1/2-1/2 | 30 | Open |
| 2104 | 2019-07-03 | Chess House Summer IM | Aarhus DEN | 5.2 | Ruben Gideon Koellner | Jens Albert Ramsdal | 0-1 | 64 | Open |
| 2105 | 2019-07-02 | Chess House Summer IM | Aarhus DEN | 4.5 | Adesh Easwaralingam | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 2106 | 2019-07-01 | Chess House Summer IM | Aarhus DEN | 3.4 | Ruben Gideon Koellner | Hilmir Freyr Heimisson | 1-0 | 60 | Open |
| 2107 | 2019-07-01 | Chess House Summer IM | Aarhus DEN | 2.3 | Frederik Svane | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 2108 | 2019-06-30 | Chess House Summer IM | Aarhus DEN | 1.3 | Ruben Gideon Koellner | Martin Matthiesen | 0-1 | 39 | Open |
| 2109 | 2019-06-23 | 11th Rheinland-Pfalz Open | Weilerbach GER | 7.2 | Lennert Lenaerts | Ruben Gideon Koellner | 0-1 | 31 | Open |
| 2110 | 2019-06-22 | 11th Rheinland-Pfalz Open | Weilerbach GER | 5.1 | Ruben Gideon Koellner | Julius Muckle | 0-1 | 38 | Open |
| 2111 | 2019-06-21 | 11th Rheinland-Pfalz Open | Weilerbach GER | 4.4 | Jan Boder | Ruben Gideon Koellner | 0-1 | 23 | Open |
| 2112 | 2019-06-21 | 11th Rheinland-Pfalz Open | Weilerbach GER | 3.4 | Ruben Gideon Koellner | Juergen Schulte | 1-0 | 39 | Open |
| 2113 | 2019-06-20 | 11th Rheinland-Pfalz Open | Weilerbach GER | 2.5 | Peter Mueller | Ruben Gideon Koellner | 0-1 | 12 | Open |
| 2114 | 2019-06-20 | 11th Rheinland-Pfalz Open | Weilerbach GER | 1.5 | Ruben Gideon Koellner | Jonathan Neo Santos-Mueller | 1-0 | 25 | Open |
| 2115 | 2019-04-27 | 7th Hofheim Spring Open | Hofheim GER | 9.5 | Manuel Guennigmann | Ruben Gideon Koellner | 1/2-1/2 | 92 | Open |
| 2116 | 2019-04-27 | 7th Hofheim Spring Open | Hofheim GER | 8.4 | Ruben Gideon Koellner | Thorsten Schmitz | 1/2-1/2 | 35 | Open |
| 2117 | 2019-04-26 | 7th Hofheim Spring Open | Hofheim GER | 7.2 | Maxim Turov | Ruben Gideon Koellner | 1-0 | 45 | Open |
| 2118 | 2019-04-26 | 7th Hofheim Spring Open | Hofheim GER | 6.3 | Ruben Gideon Koellner | Roman Khaetsky | 1-0 | 54 | Open |
| 2119 | 2019-04-25 | 7th Hofheim Spring Open | Hofheim GER | 5.7 | Gerardo Artola Pola | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 2120 | 2019-04-25 | 7th Hofheim Spring Open | Hofheim GER | 4.11 | Ruben Gideon Koellner | Arno Kirchhof | 1-0 | 55 | Open |
| 2121 | 2019-04-24 | 7th Hofheim Spring Open | Hofheim GER | 3.9 | Markus Kirchner | Ruben Gideon Koellner | 1/2-1/2 | 81 | Open |
| 2122 | 2019-04-24 | 7th Hofheim Spring Open | Hofheim GER | 2.17 | Ruben Gideon Koellner | Egor Chekletsov | 1-0 | 64 | Open |
| 2123 | 2019-04-23 | 7th Hofheim Spring Open | Hofheim GER | 1.6 | Shourya Jain | Ruben Gideon Koellner | 1-0 | 60 | Open |
| 2124 | 2019-04-22 | GRENKE Chess Open 2019 | Karlsruhe GER | 9.54 | Ruben Gideon Koellner | Oliver Kurmann | 1/2-1/2 | 47 | Open |
| 2125 | 2019-04-22 | GRENKE Chess Open 2019 | Karlsruhe GER | 8.11 | Ruben Gideon Koellner | Wilfried Steffens | 1-0 | 42 | Open |
| 2126 | 2019-04-19 | GRENKE Chess Open 2019 | Karlsruhe GER | 3.32 | Ruben Gideon Koellner | Matthias Dann | 0-1 | 56 | Open |
| 2127 | 2019-01-06 | 31st Staufer-Open 2019 | Schwaebisch Gmuend GER | 9 | Ruben Gideon Koellner | Vitaly Kunin | 1/2-1/2 | 45 | Open |
| 2128 | 2019-01-05 | 31st Staufer-Open 2019 | Schwaebisch Gmuend GER | 8 | Ruben Gideon Koellner | Aaron Noah Koellner | 1-0 | 42 | Open |
| 2129 | 2019-01-03 | 31st Staufer-Open 2019 | Schwaebisch Gmuend GER | 3 | Alexander Suvorov | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 2130 | 2018-11-24 | Heusenstamm Schloss Open | Heusenstamm GER | 4.11 | Ruben Gideon Koellner | Petro Golubka | 0-1 | 83 | Open |
| 2131 | 2018-11-23 | Heusenstamm Schloss Open | Heusenstamm GER | 3.1 | Daniel Sadzikowski | Ruben Gideon Koellner | 1/2-1/2 | 57 | Open |
| 2132 | 2018-07-29 | Xtracon Chess Open 2018 | Helsingor DEN | 10.52 | Ruben Gideon Koellner | Steen Petersen | 1/2-1/2 | 39 | Open |
| 2133 | 2018-07-28 | Xtracon Chess Open 2018 | Helsingor DEN | 9.64 | Mikael Skjoldager | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 2134 | 2018-07-27 | Xtracon Chess Open 2018 | Helsingor DEN | 8.59 | Ruben Gideon Koellner | Erik Alquist | 1/2-1/2 | 67 | Open |
| 2135 | 2018-07-26 | Xtracon Chess Open 2018 | Helsingor DEN | 7.63 | Abyl Kizatbay | Ruben Gideon Koellner | 1/2-1/2 | 47 | Open |
| 2136 | 2018-07-25 | Xtracon Chess Open 2018 | Helsingor DEN | 6.61 | Ruben Gideon Koellner | Mert Acikel | 1/2-1/2 | 52 | Open |
| 2137 | 2018-07-24 | Xtracon Chess Open 2018 | Helsingor DEN | 5.18 | Allan Stig Rasmussen | Ruben Gideon Koellner | 1-0 | 46 | Open |
| 2138 | 2018-07-23 | Xtracon Chess Open 2018 | Helsingor DEN | 4.27 | Ruben Gideon Koellner | Jonny Hector | 1/2-1/2 | 31 | Open |
| 2139 | 2018-07-22 | Xtracon Chess Open 2018 | Helsingor DEN | 3.26 | Linus Johansson | Ruben Gideon Koellner | 1/2-1/2 | 115 | Open |
| 2140 | 2018-07-22 | Xtracon Chess Open 2018 | Helsingor DEN | 2.84 | Ruben Gideon Koellner | Michael Agermose Jensen | 1-0 | 35 | Open |
| 2141 | 2018-07-21 | Xtracon Chess Open 2018 | Helsingor DEN | 1.93 | Denis Ponomarev | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 2142 | 2018-06-02 | 10th Rheinland-Pfalz Open | Nickenich GER | 6.8 | Ralf, Dr. Schoen | Ruben Gideon Koellner | 0-1 | 25 | Open |
| 2143 | 2018-06-02 | 10th Rheinland-Pfalz Open | Nickenich GER | 5.7 | Ruben Gideon Koellner | Andreas Hauer | 1-0 | 60 | Open |
| 2144 | 2018-06-01 | 10th Rheinland-Pfalz Open | Nickenich GER | 4.7 | Joachim Waffenschmidt | Ruben Gideon Koellner | 1-0 | 99 | Open |
| 2145 | 2018-06-01 | 10th Rheinland-Pfalz Open | Nickenich GER | 3.8 | Ruben Gideon Koellner | Felix Begri | 1-0 | 34 | Open |
| 2146 | 2018-05-31 | 10th Rheinland-Pfalz Open | Nickenich GER | 2.1 | Gerhard Roerig | Ruben Gideon Koellner | 0-1 | 56 | Open |
| 2147 | 2018-05-31 | 10th Rheinland-Pfalz Open | Nickenich GER | 1.1 | Ruben Gideon Koellner | Michael Mueller | 1-0 | 39 | Open |
| 2148 | 2018-05-03 | 10th Rheinland-Pfalz Open | Nickenich GER | 7.3 | Ruben Gideon Koellner | Yuri Boidman | 1/2-1/2 | 72 | Open |
| 2149 | 2018-03-29 | GRENKE Chess Open 2018 | Karlsruhe GER | 1.15 | Ruben Gideon Koellner | Falko Bindrich | 0-1 | 36 | Open |
| 2150 | 2018-03-25 | 24th Schloss Open 2018 | Werther GER | 7.11 | Ruben Gideon Koellner | Cedric Kollenberg | 1/2-1/2 | 44 | Open |
| 2151 | 2018-03-25 | 24th Schloss Open 2018 | Werther GER | 6.12 | Tim Fuhlrott | Ruben Gideon Koellner | 1/2-1/2 | 19 | Open |
| 2152 | 2018-03-24 | 24th Schloss Open 2018 | Werther GER | 4.9 | Filip Boe Olsen | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 2153 | 2018-03-23 | 24th Schloss Open 2018 | Werther GER | 3.12 | Ruben Gideon Koellner | Fabian Schaller | 1-0 | 37 | Open |
| 2154 | 2018-03-23 | 24th Schloss Open 2018 | Werther GER | 2.2 | Jakob Pfreundt | Ruben Gideon Koellner | 1-0 | 54 | Open |
| 2155 | 2017-12-30 | TCh-GER Junior U20 2017 | Duesseldorf GER | 7.1 | Ruben Gideon Koellner | Cedric Oberhofer | 0-1 | 48 | Open |
| 2156 | 2017-12-29 | TCh-GER Junior U20 2017 | Duesseldorf GER | 6.1 | Julian Martin | Ruben Gideon Koellner | 1-0 | 12 | Open |
| 2157 | 2017-12-29 | TCh-GER Junior U20 2017 | Duesseldorf GER | 5.1 | Ruben Gideon Koellner | Mirko Eichstaedt | 1/2-1/2 | 69 | Open |
| 2158 | 2017-12-28 | TCh-GER Junior U20 2017 | Duesseldorf GER | 4.1 | Maximilian Ruff | Ruben Gideon Koellner | 0-1 | 34 | Open |
| 2159 | 2017-12-28 | TCh-GER Junior U20 2017 | Duesseldorf GER | 3.1 | Ruben Gideon Koellner | Alexander Pluska | 1/2-1/2 | 59 | Open |
| 2160 | 2017-12-27 | TCh-GER Junior U20 2017 | Duesseldorf GER | 2.1 | Dmitrij Kollars | Ruben Gideon Koellner | 1/2-1/2 | 33 | Open |
| 2161 | 2017-12-27 | TCh-GER Junior U20 2017 | Duesseldorf GER | 1.1 | Ruben Gideon Koellner | Simon Degenhard | 0-1 | 56 | Open |
| 2162 | 2017-11-24 | Heusenstamm Schloss Open | Heusenstamm GER | 2.8 | Misa Pap | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 2163 | 2017-10-22 | 9th Korbach Open 2017 | Korbach GER | 7.4 | Lars Christoff Andersen | Ruben Gideon Koellner | 1/2-1/2 | 37 | Open |
| 2164 | 2017-10-22 | 9th Korbach Open 2017 | Korbach GER | 6.7 | Ruben Gideon Koellner | Dietmar Wachsmann | 1-0 | 48 | Open |
| 2165 | 2017-10-21 | 9th Korbach Open 2017 | Korbach GER | 5.9 | Johanna Bluebaum | Ruben Gideon Koellner | 0-1 | 55 | Open |
| 2166 | 2017-10-21 | 9th Korbach Open 2017 | Korbach GER | 4.15 | Ruben Gideon Koellner | Bas Dudink | 1-0 | 60 | Open |
| 2167 | 2017-10-20 | 9th Korbach Open 2017 | Korbach GER | 3.8 | Dirk Van der Meiden | Ruben Gideon Koellner | 1-0 | 58 | Open |
| 2168 | 2017-10-20 | 9th Korbach Open 2017 | Korbach GER | 2.4 | Ruben Gideon Koellner | Harald Maiwald | 1/2-1/2 | 26 | Open |
| 2169 | 2017-10-19 | 9th Korbach Open 2017 | Korbach GER | 1.6 | Markus Kirchner | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 2170 | 2017-07-23 | 45th Sparkassen Open | Dortmund GER | 9.12 | Soel Kartsev | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 2171 | 2017-07-22 | 45th Sparkassen Open | Dortmund GER | 8.14 | Ruben Gideon Koellner | Hanne Goossens | 1/2-1/2 | 40 | Open |
| 2172 | 2017-07-21 | 45th Sparkassen Open | Dortmund GER | 7.11 | Ruben Gideon Koellner | Alexej Wagner | 1/2-1/2 | 27 | Open |
| 2173 | 2017-07-20 | 45th Sparkassen Open | Dortmund GER | 6.6 | Alina Kashlinskaya | Ruben Gideon Koellner | 1-0 | 22 | Open |
| 2174 | 2017-07-19 | 45th Sparkassen Open | Dortmund GER | 5.11 | Ruben Gideon Koellner | Patrick Wiebe | 1-0 | 41 | Open |
| 2175 | 2017-07-18 | 45th Sparkassen Open | Dortmund GER | 4.13 | Stief Gijsen | Ruben Gideon Koellner | 1/2-1/2 | 39 | Open |
| 2176 | 2017-07-17 | 45th Sparkassen Open | Dortmund GER | 3.1 | Ruben Gideon Koellner | Holger Lehmann | 1/2-1/2 | 24 | Open |
| 2177 | 2017-07-16 | 45th Sparkassen Open | Dortmund GER | 2.1 | Arno Bomans | Ruben Gideon Koellner | 1/2-1/2 | 18 | Open |
| 2178 | 2017-07-15 | 45th Sparkassen Open | Dortmund GER | 1.33 | Ruben Gideon Koellner | Tim Fuhlrott | 1-0 | 21 | Open |
| 2179 | 2017-04-23 | 2nd Bundesliga West 2016-17 | Germany GER | 8.8 | Ruben Gideon Koellner | Martin Villwock | 1/2-1/2 | 53 | Open |
| 2180 | 2017-04-11 | 5th Hofheim Spring Open | Hofheim GER | 9.2 | Juergen Stock | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 2181 | 2017-04-11 | 5th Hofheim Spring Open | Hofheim GER | 8.22 | Ruben Gideon Koellner | Samuel Maar | 1/2-1/2 | 62 | Open |
| 2182 | 2017-04-10 | 5th Hofheim Spring Open | Hofheim GER | 7.22 | Michael, Dr. Cichy | Ruben Gideon Koellner | 1/2-1/2 | 36 | Open |
| 2183 | 2017-04-10 | 5th Hofheim Spring Open | Hofheim GER | 6.26 | Ruben Gideon Koellner | Hans Schwarz | 1-0 | 43 | Open |
| 2184 | 2017-04-09 | 5th Hofheim Spring Open | Hofheim GER | 5.27 | Ali Oezden Oezdemir | Ruben Gideon Koellner | 1/2-1/2 | 31 | Open |
| 2185 | 2017-04-09 | 5th Hofheim Spring Open | Hofheim GER | 4.26 | Ruben Gideon Koellner | Joachim Waffenschmidt | 0-1 | 66 | Open |
| 2186 | 2017-04-08 | 5th Hofheim Spring Open | Hofheim GER | 3.25 | Till Krueger | Ruben Gideon Koellner | 1/2-1/2 | 61 | Open |
| 2187 | 2017-04-08 | 5th Hofheim Spring Open | Hofheim GER | 2.25 | Ruben Gideon Koellner | Michael Paul, Dr. Lehnert | 0-1 | 47 | Open |
| 2188 | 2017-04-07 | 5th Hofheim Spring Open | Hofheim GER | 1.9 | Daniel Malek | Ruben Gideon Koellner | 1-0 | 24 | Open |
| 2189 | 2017-03-19 | 2nd Bundesliga West 2016-17 | Germany GER | 7.8 | Jannik Sundorf | Ruben Gideon Koellner | 1/2-1/2 | 16 | Open |
| 2190 | 2017-02-25 | 8th Pfalz Open 2017 | Neustadt an der Weinstrasse GER | 3.21 | Daniel Fridman | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 2191 | 2017-02-19 | 2nd Bundesliga West 2016-17 | Germany GER | 6.8 | Ruben Gideon Koellner | Christopher Lutz | 0-1 | 56 | Open |
| 2192 | 2016-12-28 | 13th Schachtuerken Cup | Paderborn GER | 3.5 | Eduard Andreev | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 2193 | 2016-11-24 | Heusenstamm Schloss Open | Heusenstamm GER | 1.1 | 12800040 | Ruben Gideon Koellner | 1-0 | 115 | Open |
| 2194 | 2016-10-29 | World Cadets U12 2016 | Batumi GEO | 10.25 | Anaiy Somalwar | Ruben Gideon Koellner | 1-0 | 45 | Open |
| 2195 | 2016-10-28 | World Cadets U12 2016 | Batumi GEO | 9.18 | Ruben Gideon Koellner | Duc Tri Ngo | 0-1 | 33 | Open |
| 2196 | 2016-10-27 | World Cadets U12 2016 | Batumi GEO | 8.9 | Jan Subelj | Ruben Gideon Koellner | 1-0 | 45 | Open |
| 2197 | 2016-10-26 | World Cadets U12 2016 | Batumi GEO | 7.7 | Ruben Gideon Koellner | Santiago Avila Pavas | 1/2-1/2 | 71 | Open |
| 2198 | 2016-10-24 | World Cadets U12 2016 | Batumi GEO | 6.16 | Ruben Gideon Koellner | Ughur Ilyasli | 1-0 | 50 | Open |
| 2199 | 2016-10-23 | World Cadets U12 2016 | Batumi GEO | 5.22 | Karthik Kumar Pradeep | Ruben Gideon Koellner | 0-1 | 52 | Open |
| 2200 | 2016-10-22 | World Cadets U12 2016 | Batumi GEO | 4.34 | Ruben Gideon Koellner | Cristi-Iulian Coca | 1-0 | 27 | Open |
| 2201 | 2016-10-21 | World Cadets U12 2016 | Batumi GEO | 3.2 | Brandon Mingye Wang | Ruben Gideon Koellner | 1-0 | 45 | Open |
| 2202 | 2016-10-20 | World Cadets U12 2016 | Batumi GEO | 2.25 | Ruben Gideon Koellner | Kushagra Mohan | 1/2-1/2 | 41 | Open |
| 2203 | 2016-10-19 | World Cadets U12 2016 | Batumi GEO | 1.27 | Xander Leibert | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 2204 | 2016-07-17 | Helmut-Kohls-Turnier 2016 | Dortmund GER | 9.4 | Rene Borchert | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 2205 | 2016-07-16 | Helmut-Kohls-Turnier 2016 | Dortmund GER | 8.3 | Ruben Gideon Koellner | Joris Gerlagh | 1/2-1/2 | 55 | Open |
| 2206 | 2016-07-15 | Helmut-Kohls-Turnier 2016 | Dortmund GER | 7.3 | Jakob Leon Pajeken | Ruben Gideon Koellner | 1/2-1/2 | 49 | Open |
| 2207 | 2016-07-14 | Helmut-Kohls-Turnier 2016 | Dortmund GER | 6.4 | Ruben Gideon Koellner | Ruud Van Meegen | 1-0 | 28 | Open |
| 2208 | 2016-07-13 | Helmut-Kohls-Turnier 2016 | Dortmund GER | 5.2 | Jens Albert Ramsdal | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 2209 | 2016-07-12 | Helmut-Kohls-Turnier 2016 | Dortmund GER | 4.5 | Ruben Gideon Koellner | Rasmus Thogersen | 1/2-1/2 | 37 | Open |
| 2210 | 2016-07-11 | Helmut-Kohls-Turnier 2016 | Dortmund GER | 3.1 | Ruben Gideon Koellner | Steven Baerwolf | 1/2-1/2 | 41 | Open |
| 2211 | 2016-07-10 | Helmut-Kohls-Turnier 2016 | Dortmund GER | 2.5 | Fatih Baltic | Ruben Gideon Koellner | 1/2-1/2 | 30 | Open |
| 2212 | 2016-07-09 | Helmut-Kohls-Turnier 2016 | Dortmund GER | 1.2 | Ruben Gideon Koellner | Gregor Fluechter | 1/2-1/2 | 53 | Open |
| 2213 | 2016-05-29 | 19th Rhein-Main-Open 2016 | Bad Homburg GER | 7 | Ruben Gideon Koellner | Snorri Thor Sigurdsson | 0-1 | 51 | Open |
| 2214 | 2016-05-28 | 19th Rhein-Main-Open 2016 | Bad Homburg GER | 6 | Florian Busch | Ruben Gideon Koellner | 1/2-1/2 | 53 | Open |
| 2215 | 2016-05-28 | 19th Rhein-Main-Open 2016 | Bad Homburg GER | 5 | Ruben Gideon Koellner | Frank Schindelmeiser | 1/2-1/2 | 38 | Open |
| 2216 | 2016-05-27 | 19th Rhein-Main-Open 2016 | Bad Homburg GER | 4 | Roland Schmid | Ruben Gideon Koellner | 1-0 | 32 | Open |
| 2217 | 2016-05-26 | 19th Rhein-Main-Open 2016 | Bad Homburg GER | 3 | Ruben Gideon Koellner | Andre Kremer | 1-0 | 32 | Open |
| 2218 | 2016-05-26 | 19th Rhein-Main-Open 2016 | Bad Homburg GER | 2 | Klaus Schmitzer | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 2219 | 2016-05-25 | 19th Rhein-Main-Open 2016 | Bad Homburg GER | 1 | Ruben Gideon Koellner | Peter Bittner | 1-0 | 61 | Open |
| 2220 | 2016-04-02 | 4th Hofheim Spring Open | Hofheim GER | 9.6 | Josip Gazic | Ruben Gideon Koellner | 1/2-1/2 | 53 | Open |
| 2221 | 2016-04-02 | 4th Hofheim Spring Open | Hofheim GER | 8.12 | Ruben Gideon Koellner | Michael, Dr. Konik | 1-0 | 22 | Open |
| 2222 | 2016-04-01 | 4th Hofheim Spring Open | Hofheim GER | 7.7 | Thanh Kien Tran | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 2223 | 2016-04-01 | 4th Hofheim Spring Open | Hofheim GER | 6.11 | Ruben Gideon Koellner | Michael, Dr. Cichy | 1-0 | 24 | Open |
| 2224 | 2016-03-31 | 4th Hofheim Spring Open | Hofheim GER | 5.14 | Juergen Seidel | Ruben Gideon Koellner | 1/2-1/2 | 50 | Open |
| 2225 | 2016-03-31 | 4th Hofheim Spring Open | Hofheim GER | 4.4 | Ruben Gideon Koellner | Ulrich Weber | 0-1 | 32 | Open |
| 2226 | 2016-03-30 | 4th Hofheim Spring Open | Hofheim GER | 3.14 | Alexander Krastev | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 2227 | 2016-03-30 | 4th Hofheim Spring Open | Hofheim GER | 2.5 | Ruben Gideon Koellner | Peter Keller | 0-1 | 52 | Open |
| 2228 | 2016-03-29 | 4th Hofheim Spring Open | Hofheim GER | 1.3 | Lev Yankelevich | Ruben Gideon Koellner | 0-1 | 58 | Open |
| 2229 | 2015-08-09 | 7th Vellmar Open 2015 | Vellmar GER | 7.9 | Guido Rothe | Ruben Gideon Koellner | 1/2-1/2 | 45 | Open |
| 2230 | 2015-08-09 | 7th Vellmar Open 2015 | Vellmar GER | 6.13 | Ruben Gideon Koellner | Ulrich von Auer | 1-0 | 61 | Open |
| 2231 | 2015-08-08 | 7th Vellmar Open 2015 | Vellmar GER | 5.19 | Martijn Boele | Ruben Gideon Koellner | 0-1 | 59 | Open |
| 2232 | 2015-08-08 | 7th Vellmar Open 2015 | Vellmar GER | 4.17 | Peter Nies | Ruben Gideon Koellner | 1/2-1/2 | 61 | Open |
| 2233 | 2015-08-07 | 7th Vellmar Open 2015 | Vellmar GER | 3.1 | Ruben Gideon Koellner | Richard Zahn | 0-1 | 35 | Open |
| 2234 | 2015-08-07 | 7th Vellmar Open 2015 | Vellmar GER | 2.17 | Stefan Calvi | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 2235 | 2015-08-06 | 7th Vellmar Open 2015 | Vellmar GER | 1.26 | Ruben Gideon Koellner | Pieter Verhoef | 1/2-1/2 | 41 | Open |
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