Niels Ondersteijn
Country
NED
Birth Year
1984
Gender
M
Title
International Master
FIDE ID
1011162
FIDE Rating
2371
FIDE Rating Graph
Games
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025-11-22 | Dutch League 2025-26 | Netherlands NED | 4.1 | Niels Ondersteijn | Dharma Tjiam | 1-0 | 33 | Open |
| 2 | 2025-11-01 | Dutch League 2025-26 | Netherlands NED | 3.6 | Tim Grutter | Niels Ondersteijn | 1/2-1/2 | 55 | Open |
| 3 | 2025-10-25 | 40th ECC Open 2025 | Rhodes GRE | 7.1 | Bayarjavkhlan Delgerdalai | Niels Ondersteijn | 1/2-1/2 | 77 | Open |
| 4 | 2025-10-24 | 40th ECC Open 2025 | Rhodes GRE | 6.1 | Niels Ondersteijn | Gil Barak | 1-0 | 38 | Open |
| 5 | 2025-10-22 | 40th ECC Open 2025 | Rhodes GRE | 4.148 | Niels Ondersteijn | Tom Wedberg | 0-1 | 39 | Open |
| 6 | 2025-10-21 | 40th ECC Open 2025 | Rhodes GRE | 3.88 | Khagan Ahmad | Niels Ondersteijn | 1/2-1/2 | 54 | Open |
| 7 | 2025-09-20 | Dutch League 2025-26 | Netherlands NED | 1.7 | Niels Ondersteijn | Martin Martens | 1-0 | 53 | Open |
| 8 | 2025-05-10 | Dutch League 2024-25 | Netherlands NED | 9.2 | Helmut Froeyman | Niels Ondersteijn | 1/2-1/2 | 25 | Open |
| 9 | 2025-04-21 | grenke Chess Open 2025 | Karlsruhe GER | 8.28 | Niels Ondersteijn | Bojan Maksimovic | 0-1 | 46 | Open |
| 10 | 2025-04-20 | grenke Chess Open 2025 | Karlsruhe GER | 7.17 | Eytan Rozen | Niels Ondersteijn | 1-0 | 33 | Open |
| 11 | 2025-04-20 | grenke Chess Open 2025 | Karlsruhe GER | 6.23 | Niels Ondersteijn | Dragos Ceres | 1-0 | 65 | Open |
| 12 | 2025-04-19 | grenke Chess Open 2025 | Karlsruhe GER | 4.21 | Niels Ondersteijn | S Aswath | 0-1 | 37 | Open |
| 13 | 2025-04-05 | Dutch League 2024-25 | Netherlands NED | 8.6 | Niels Ondersteijn | Glen De Schampheleire | 1-0 | 62 | Open |
| 14 | 2025-03-08 | Dutch League 2024-25 | Netherlands NED | 7.4 | Oleg Korneev | Niels Ondersteijn | 1/2-1/2 | 39 | Open |
| 15 | 2025-02-08 | Dutch League 2024-25 | Netherlands NED | 6.7 | Niels Ondersteijn | Thomas Beerdsen | 1/2-1/2 | 33 | Open |
| 16 | 2024-12-14 | Dutch League 2024-25 | Netherlands NED | 5.3 | Kai Spriestersbach | Niels Ondersteijn | 1/2-1/2 | 65 | Open |
| 17 | 2024-11-23 | Dutch League 2024-25 | Netherlands NED | 4.7 | Niels Ondersteijn | Lennert Lenaerts | 1-0 | 34 | Open |
| 18 | 2024-11-09 | Dutch League 2024-25 | Netherlands NED | 3.5 | Leandro Slagboom | Niels Ondersteijn | 1-0 | 18 | Open |
| 19 | 2024-10-26 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 7.22 | Cemil Gulbas | Niels Ondersteijn | 1-0 | 29 | Open |
| 20 | 2024-10-25 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 6.15 | Niels Ondersteijn | Filip Boe Olsen | 0-1 | 33 | Open |
| 21 | 2024-10-24 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 5.22 | Niels Ondersteijn | Panagiotis Christodoulou | 0-1 | 34 | Open |
| 22 | 2024-10-23 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 4.12 | Mikhail Bryakin | Niels Ondersteijn | 0-1 | 38 | Open |
| 23 | 2024-10-22 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 3.26 | Niels Ondersteijn | Tom Bus | 1-0 | 36 | Open |
| 24 | 2024-10-21 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 2.15 | Tomas Laurusas | Niels Ondersteijn | 1/2-1/2 | 58 | Open |
| 25 | 2024-10-20 | 39th ECC Open 2024 | Vrnjacka Banja SRB | 1.36 | Niels Ondersteijn | Rory Quinn | 1-0 | 25 | Open |
| 26 | 2024-10-12 | Dutch League 2024-25 | Netherlands NED | 2.9 | Niels Ondersteijn | Michiel Bosman | 1-0 | 58 | Open |
| 27 | 2024-09-21 | Dutch League 2024-25 | Netherlands NED | 1.8 | Niels Ondersteijn | Onno Elgersma | 1-0 | 52 | Open |
| 28 | 2024-04-20 | Dutch League 2023-24 | Netherlands NED | 9.8 | Niels Ondersteijn | Geert Van der Stricht | 1-0 | 48 | Open |
| 29 | 2024-03-23 | Dutch League 2023-24 | Netherlands NED | 8.8 | Stan Van Gisbergen | Niels Ondersteijn | 0-1 | 27 | Open |
| 30 | 2024-02-03 | Dutch League 2023-24 | Netherlands NED | 6.7 | Loek Van der Hagen | Niels Ondersteijn | 1-0 | 39 | Open |
| 31 | 2023-11-25 | Dutch League 2023-24 | Netherlands NED | 4.7 | Maarten Praet | Niels Ondersteijn | 0-1 | 23 | Open |
| 32 | 2023-11-04 | Dutch League 2023-24 | Netherlands NED | 3.7 | Niels Ondersteijn | Ivo Wantola | 0-1 | 28 | Open |
| 33 | 2023-10-07 | Dutch League 2023-24 | Netherlands NED | 2.2 | Niels Ondersteijn | Mark Van der Werf | 0-1 | 36 | Open |
| 34 | 2023-10-06 | 38th ECC Open 2023 | Durres ALB | 6.1 | Jan-Willem De Jong | Niels Ondersteijn | 1/2-1/2 | 85 | Open |
| 35 | 2023-10-04 | 38th ECC Open 2023 | Durres ALB | 4.7 | Read Samadov | Niels Ondersteijn | 1/2-1/2 | 69 | Open |
| 36 | 2023-10-02 | 38th ECC Open 2023 | Durres ALB | 2.6 | Jaime Santos Latasa | Niels Ondersteijn | 1-0 | 70 | Open |
| 37 | 2023-09-16 | Dutch League 2023-24 | Netherlands NED | 1.8 | Rob Konijn | Niels Ondersteijn | 1-0 | 60 | Open |
| 38 | 2023-08-18 | Bruges Masters 2023 | Bruges BEL | 9.2 | Niels Ondersteijn | Sterre Dauw | 1-0 | 62 | Open |
| 39 | 2023-08-17 | Bruges Masters 2023 | Bruges BEL | 8.3 | Annmarie Muetsch | Niels Ondersteijn | 1/2-1/2 | 60 | Open |
| 40 | 2023-08-16 | Bruges Masters 2023 | Bruges BEL | 7.1 | Niels Ondersteijn | Sebastian Bogner | 1/2-1/2 | 45 | Open |
| 41 | 2023-08-15 | Bruges Masters 2023 | Bruges BEL | 6.2 | Julian Victor | Niels Ondersteijn | 1/2-1/2 | 38 | Open |
| 42 | 2023-08-15 | Bruges Masters 2023 | Bruges BEL | 5.3 | Niels Ondersteijn | Julius Ohler | 1-0 | 61 | Open |
| 43 | 2023-08-14 | Bruges Masters 2023 | Bruges BEL | 4.3 | Lile Koridze | Niels Ondersteijn | 0-1 | 61 | Open |
| 44 | 2023-08-13 | Bruges Masters 2023 | Bruges BEL | 3.2 | Niels Ondersteijn | Bas De Boer | 1/2-1/2 | 56 | Open |
| 45 | 2023-08-13 | Bruges Masters 2023 | Bruges BEL | 2.3 | Benjamin Faybish | Niels Ondersteijn | 0-1 | 46 | Open |
| 46 | 2023-08-12 | Bruges Masters 2023 | Bruges BEL | 1.3 | Niels Ondersteijn | Matei Govoreanu | 1-0 | 48 | Open |
| 47 | 2023-05-21 | 48th OKU 2023 | Utrecht NED | 6.6 | Kobe Smeets | Niels Ondersteijn | 1-0 | 49 | Open |
| 48 | 2023-05-21 | 48th OKU 2023 | Utrecht NED | 5.8 | Niels Ondersteijn | Thijs Roorda | 1-0 | 58 | Open |
| 49 | 2023-05-20 | 48th OKU 2023 | Utrecht NED | 4.4 | Niels Ondersteijn | Kambiz Sekandar | 0-1 | 44 | Open |
| 50 | 2023-05-20 | 48th OKU 2023 | Utrecht NED | 3.5 | Murad Abdulla | Niels Ondersteijn | 1/2-1/2 | 36 | Open |
| 51 | 2023-05-19 | 48th OKU 2023 | Utrecht NED | 2.7 | Niels Ondersteijn | Selman Ercan | 1-0 | 35 | Open |
| 52 | 2023-05-19 | 48th OKU 2023 | Utrecht NED | 1.8 | Peter Van Wijk | Niels Ondersteijn | 0-1 | 36 | Open |
| 53 | 2023-04-22 | Dutch League 2022-23 | Netherlands NED | 9.1 | Niels Ondersteijn | Luuk Baselmans | 1/2-1/2 | 42 | Open |
| 54 | 2023-04-15 | Dutch League 2022-23 | Netherlands NED | 6.8 | Fatih Baltic | Niels Ondersteijn | 1-0 | 53 | Open |
| 55 | 2023-04-01 | Dutch League 2022-23 | Netherlands NED | 8.8 | Zyon Kollen | Niels Ondersteijn | 0-1 | 65 | Open |
| 56 | 2023-03-11 | Dutch League 2022-23 | Netherlands NED | 7.1 | Niels Ondersteijn | Jan-Willem De Jong | 1/2-1/2 | 20 | Open |
| 57 | 2023-02-23 | WWRR IM 2023 | Wachtebeke BEL | 9.3 | Daniel Elias Ochs | Niels Ondersteijn | 0-1 | 41 | Open |
| 58 | 2023-02-23 | WWRR IM 2023 | Wachtebeke BEL | 8.4 | Niels Ondersteijn | Sterre Dauw | 1/2-1/2 | 44 | Open |
| 59 | 2023-02-22 | WWRR IM 2023 | Wachtebeke BEL | 7.2 | Sophie Milliet | Niels Ondersteijn | 1-0 | 49 | Open |
| 60 | 2023-02-21 | WWRR IM 2023 | Wachtebeke BEL | 6.5 | Niels Ondersteijn | Warre De Waele | 0-1 | 44 | Open |
| 61 | 2023-02-20 | WWRR IM 2023 | Wachtebeke BEL | 5.1 | Niels Ondersteijn | Natan Pirard | 1-0 | 47 | Open |
| 62 | 2023-02-20 | WWRR IM 2023 | Wachtebeke BEL | 4.5 | Alexandre Dgebuadze | Niels Ondersteijn | 1/2-1/2 | 22 | Open |
| 63 | 2023-02-19 | WWRR IM 2023 | Wachtebeke BEL | 3.2 | Niels Ondersteijn | Maarten De Vleeschauwer | 1/2-1/2 | 69 | Open |
| 64 | 2023-02-18 | WWRR IM 2023 | Wachtebeke BEL | 2.4 | Sim Maerevoet | Niels Ondersteijn | 1/2-1/2 | 52 | Open |
| 65 | 2023-02-18 | WWRR IM 2023 | Wachtebeke BEL | 1.3 | Niels Ondersteijn | Luuk Baselmans | 0-1 | 63 | Open |
| 66 | 2022-12-17 | Dutch League 2022-23 | Netherlands NED | 5.6 | Niels Ondersteijn | Enrico Follesa | 1-0 | 24 | Open |
| 67 | 2022-11-26 | Dutch League 2022-23 | Netherlands NED | 4.1 | Maurice Schippers | Niels Ondersteijn | 0-1 | 45 | Open |
| 68 | 2022-11-05 | Dutch League 2022-23 | Netherlands NED | 3.6 | Niels Ondersteijn | Gijs IJzermans | 1-0 | 27 | Open |
| 69 | 2022-10-08 | 37th ECC Open 2022 | Mayrhofen AUT | 6.8 | Peter Prohaszka | Niels Ondersteijn | 1-0 | 34 | Open |
| 70 | 2022-10-08 | Dutch League 2022-23 | Netherlands NED | 2.7 | Niels Ondersteijn | Stefan Colijn | 1/2-1/2 | 32 | Open |
| 71 | 2022-10-06 | 37th ECC Open 2022 | Mayrhofen AUT | 4.7 | Niels Ondersteijn | Evgeny Postny | 0-1 | 57 | Open |
| 72 | 2022-10-04 | 37th ECC Open 2022 | Mayrhofen AUT | 2.6 | Sebastien Maze | Niels Ondersteijn | 1-0 | 59 | Open |
| 73 | 2022-09-17 | Dutch League 2022-23 | Netherlands NED | 1.8 | Niels Ondersteijn | Pieter Roggeveen | 1-0 | 63 | Open |
| 74 | 2022-06-06 | 14th BPB Limburg Open | Maastricht NED | 7.5 | Carlo Pauly | Niels Ondersteijn | 0-1 | 46 | Open |
| 75 | 2022-06-06 | 14th BPB Limburg Open | Maastricht NED | 6.8 | Niels Ondersteijn | Arne Nemegeer | 1-0 | 34 | Open |
| 76 | 2022-06-05 | 14th BPB Limburg Open | Maastricht NED | 5.12 | Honorata Kucharska | Niels Ondersteijn | 0-1 | 64 | Open |
| 77 | 2022-06-05 | 14th BPB Limburg Open | Maastricht NED | 4.1 | Niels Ondersteijn | Khoi Pham | 1/2-1/2 | 46 | Open |
| 78 | 2022-06-03 | 14th BPB Limburg Open | Maastricht NED | 1.1 | Arno Bomans | Niels Ondersteijn | 1-0 | 36 | Open |
| 79 | 2022-05-29 | 47th OKU 2022 | Utrecht NED | 6.7 | Bas Van Doren | Niels Ondersteijn | 1/2-1/2 | 46 | Open |
| 80 | 2022-05-27 | 47th OKU 2022 | Utrecht NED | 1.2 | Guido Wagenvoorde | Niels Ondersteijn | 1/2-1/2 | 53 | Open |
| 81 | 2021-08-20 | Brugse Meesters 2021 | Bruges BEL | 9.3 | Eline Roebers | Niels Ondersteijn | 1-0 | 36 | Open |
| 82 | 2021-08-18 | Brugse Meesters 2021 | Bruges BEL | 7.3 | Jonathan Carlstedt | Niels Ondersteijn | 1-0 | 58 | Open |
| 83 | 2021-08-17 | Brugse Meesters 2021 | Bruges BEL | 6.5 | Niels Ondersteijn | Marc Vallet | 1-0 | 48 | Open |
| 84 | 2021-08-14 | Brugse Meesters 2021 | Bruges BEL | 1.4 | Johannes Bertram | Niels Ondersteijn | 1-0 | 26 | Open |
| 85 | 2020-02-18 | 34th Cannes Open 2020 | Cannes FRA | 3.6 | Harutyun Barseghyan | Niels Ondersteijn | 1-0 | 60 | Open |
| 86 | 2019-08-09 | 6th Prague Summer Open | Prague CZE | 9.6 | Ondrej Toman | Niels Ondersteijn | 1/2-1/2 | 26 | Open |
| 87 | 2019-08-07 | 6th Prague Summer Open | Prague CZE | 7.4 | Dushyant Sharma | Niels Ondersteijn | 0-1 | 48 | Open |
| 88 | 2019-08-06 | 6th Prague Summer Open | Prague CZE | 6.9 | Niels Ondersteijn | Gustav Brejnik | 1-0 | 55 | Open |
| 89 | 2019-08-05 | 6th Prague Summer Open | Prague CZE | 5.3 | Akash Thakur | Niels Ondersteijn | 1-0 | 42 | Open |
| 90 | 2019-08-04 | 6th Prague Summer Open | Prague CZE | 4.3 | Niels Ondersteijn | Hongjin Ahn | 1-0 | 36 | Open |
| 91 | 2019-08-04 | 6th Prague Summer Open | Prague CZE | 3.9 | 1501046 | Niels Ondersteijn | 0-1 | 23 | Open |
| 92 | 2019-08-03 | 6th Prague Summer Open | Prague CZE | 2.4 | Niels Ondersteijn | Dante M Beukes | 1/2-1/2 | 60 | Open |
| 93 | 2019-08-02 | 6th Prague Summer Open | Prague CZE | 1.3 | Matts Unander | Niels Ondersteijn | 0-1 | 16 | Open |
| 94 | 2019-06-02 | 46th OKU 2019 | Utrecht NED | 6.9 | Niels Ondersteijn | Jordy Schouten | 1-0 | 39 | Open |
| 95 | 2019-06-02 | 46th OKU 2019 | Utrecht NED | 5.3 | Thomas Beerdsen | Niels Ondersteijn | 1-0 | 36 | Open |
| 96 | 2019-06-01 | 46th OKU 2019 | Utrecht NED | 4.8 | Niels Ondersteijn | Khoi Pham | 1-0 | 34 | Open |
| 97 | 2019-04-22 | GRENKE Chess Open 2019 | Karlsruhe GER | 9.87 | Hendrik Hoffmann | Niels Ondersteijn | 0-1 | 26 | Open |
| 98 | 2019-04-22 | GRENKE Chess Open 2019 | Karlsruhe GER | 8.36 | Niels Ondersteijn | Vitaly Kunin | 0-1 | 36 | Open |
| 99 | 2019-04-21 | GRENKE Chess Open 2019 | Karlsruhe GER | 7.78 | Nicholas Paltrinieri | Niels Ondersteijn | 0-1 | 48 | Open |
| 100 | 2019-04-21 | GRENKE Chess Open 2019 | Karlsruhe GER | 6.109 | Niels Ondersteijn | Pune Rahul Kumar | 1-0 | 68 | Open |
| 101 | 2019-04-20 | GRENKE Chess Open 2019 | Karlsruhe GER | 4.91 | Niels Ondersteijn | Desiree Di Benedetto | 0-1 | 0 | Open |
| 102 | 2019-04-19 | GRENKE Chess Open 2019 | Karlsruhe GER | 3.2 | Anton Korobov | Niels Ondersteijn | 1-0 | 39 | Open |
| 103 | 2019-04-19 | GRENKE Chess Open 2019 | Karlsruhe GER | 2.98 | Niels Ondersteijn | Robin Schlichtmann | 1-0 | 21 | Open |
| 104 | 2018-04-21 | Dutch League 2017-18 | Netherlands NED | 9.1 | Alexandr Fier | Niels Ondersteijn | 1-0 | 28 | Open |
| 105 | 2018-04-07 | Dutch League 2017-18 | Netherlands NED | 8.5 | Niels Ondersteijn | Richard Vedder | 1-0 | 19 | Open |
| 106 | 2018-04-02 | GRENKE Chess Open 2018 | Karlsruhe GER | 8.31 | Dmitrij Kollars | Niels Ondersteijn | 1-0 | 47 | Open |
| 107 | 2018-04-01 | GRENKE Chess Open 2018 | Karlsruhe GER | 7.3 | Niels Ondersteijn | Bence Korpa | 1/2-1/2 | 45 | Open |
| 108 | 2018-03-31 | GRENKE Chess Open 2018 | Karlsruhe GER | 5.35 | Niels Ondersteijn | Etienne Bacrot | 1/2-1/2 | 56 | Open |
| 109 | 2018-03-30 | GRENKE Chess Open 2018 | Karlsruhe GER | 3.17 | Daniel Sadzikowski | Niels Ondersteijn | 1-0 | 40 | Open |
| 110 | 2018-02-03 | Dutch League 2017-18 | Netherlands NED | 6.8 | Albert Blees | Niels Ondersteijn | 0-1 | 38 | Open |
| 111 | 2018-01-19 | 43rd Seville Open 2018 | Seville ESP | 8.7 | Misa Pap | Niels Ondersteijn | 1-0 | 37 | Open |
| 112 | 2018-01-16 | 43rd Seville Open 2018 | Seville ESP | 5.6 | Niels Ondersteijn | Jaime Santos Latasa | 0-1 | 47 | Open |
| 113 | 2017-12-16 | Dutch League 2017-18 | Netherlands NED | 5.5 | Frank Erwich | Niels Ondersteijn | 1/2-1/2 | 25 | Open |
| 114 | 2017-11-25 | Dutch League 2017-18 | Netherlands NED | 4.8 | Niels Ondersteijn | Christian Braun | 0-1 | 39 | Open |
| 115 | 2017-11-04 | Dutch League 2017-18 | Netherlands NED | 3.1 | Mark Van der Werf | Niels Ondersteijn | 1-0 | 26 | Open |
| 116 | 2017-10-07 | Dutch League 2017-18 | Netherlands NED | 2.9 | Nick Maatman | Niels Ondersteijn | 1/2-1/2 | 43 | Open |
| 117 | 2017-09-16 | Dutch League 2017-18 | Netherlands NED | 1.6 | Christov Kleijn | Niels Ondersteijn | 1/2-1/2 | 38 | Open |
| 118 | 2017-04-16 | GRENKE Chess Open 2017 | Karlsruhe GER | 6.39 | Niels Ondersteijn | Robert Ruck | 0-1 | 22 | Open |
| 119 | 2017-04-15 | GRENKE Chess Open 2017 | Karlsruhe GER | 4.35 | Daniel Sadzikowski | Niels Ondersteijn | 1-0 | 48 | Open |
| 120 | 2017-04-01 | Dutch League 2016-17 | Netherlands NED | 8.3 | Jasper Geurink | Niels Ondersteijn | 0-1 | 62 | Open |
| 121 | 2017-03-11 | Dutch League 2016-17 | Netherlands NED | 7.1 | Thibaut Vandenbussche | Niels Ondersteijn | 1-0 | 0 | Open |
| 122 | 2017-02-04 | Dutch League 2016-17 | Netherlands NED | 6.8 | Niels Ondersteijn | Ilias Van der Lende | 0-1 | 45 | Open |
| 123 | 2016-12-17 | Dutch League 2016-17 | Netherlands NED | 5.5 | Niels Ondersteijn | Eelke Wiersma | 1/2-1/2 | 39 | Open |
| 124 | 2016-11-26 | Dutch League 2016-17 | Netherlands NED | 4.3 | Niels Ondersteijn | Jorden Van Foreest | 0-1 | 49 | Open |
| 125 | 2016-11-05 | Dutch League 2016-17 | Netherlands NED | 3.7 | Marijn Den Hartog | Niels Ondersteijn | 1-0 | 36 | Open |
| 126 | 2016-10-08 | Dutch League 2016-17 | Netherlands NED | 2.4 | Vyacheslav Ikonnikov | Niels Ondersteijn | 1-0 | 40 | Open |
| 127 | 2016-06-05 | 43rd OKU 2016 | Utrecht NED | 6.6 | Willem Van de Fliert | Niels Ondersteijn | 1-0 | 49 | Open |
| 128 | 2016-06-04 | 43rd OKU 2016 | Utrecht NED | 3.7 | Niels Ondersteijn | Alik Tikranian | 0-1 | 43 | Open |
| 129 | 2016-04-23 | Dutch League 2015-16 | Netherlands NED | 9.4 | Niels Ondersteijn | Lars Vereggen | 1/2-1/2 | 44 | Open |
| 130 | 2016-04-02 | Dutch League 2015-16 | Netherlands NED | 8.9 | Niels Ondersteijn | Robert Beekman | 1-0 | 27 | Open |
| 131 | 2016-03-19 | Dutch League 2015-16 | Netherlands NED | 7.6 | Niels Ondersteijn | Roger Meng | 1/2-1/2 | 91 | Open |
| 132 | 2016-02-13 | Dutch League 2015-16 | Netherlands NED | 6.1 | Ewoud De Groote | Niels Ondersteijn | 1/2-1/2 | 77 | Open |
| 133 | 2016-01-09 | Dutch League 2015-16 | Netherlands NED | 5.9 | Felix Meissner | Niels Ondersteijn | 0-1 | 28 | Open |
| 134 | 2015-12-12 | Dutch League 2015-16 | Netherlands NED | 4.3 | Niels Ondersteijn | Koen Leenhouts | 1/2-1/2 | 46 | Open |
| 135 | 2015-11-07 | Dutch League 2015-16 | Netherlands NED | 3.1 | Vyacheslav Ikonnikov | Niels Ondersteijn | 1-0 | 38 | Open |
| 136 | 2015-10-24 | 31st ECC Open 2015 | Skopje MKD | 7.14 | Niels Ondersteijn | Martijn Dambacher | 0-1 | 36 | Open |
| 137 | 2015-10-23 | 31st ECC Open 2015 | Skopje MKD | 6.17 | Niels Ondersteijn | Miikka Maki-Uuro | 0-1 | 41 | Open |
| 138 | 2015-10-22 | 31st ECC Open 2015 | Skopje MKD | 5.21 | Andreas Diermair | Niels Ondersteijn | 1-0 | 21 | Open |
| 139 | 2015-10-21 | 31st ECC Open 2015 | Skopje MKD | 4.19 | Bjarke Jensen | Niels Ondersteijn | 0-1 | 62 | Open |
| 140 | 2015-10-20 | 31st ECC Open 2015 | Skopje MKD | 3.13 | Niels Ondersteijn | Robert Markus | 0-1 | 45 | Open |
| 141 | 2015-10-19 | 31st ECC Open 2015 | Skopje MKD | 2.19 | Niels Ondersteijn | Conor O`Donnell | 1/2-1/2 | 39 | Open |
| 142 | 2015-10-18 | 31st ECC Open 2015 | Skopje MKD | 1.6 | Pentala Harikrishna | Niels Ondersteijn | 1-0 | 49 | Open |
| 143 | 2015-10-10 | Dutch League 2015-16 | Netherlands NED | 2.4 | David Klein | Niels Ondersteijn | 1-0 | 62 | Open |
| 144 | 2015-09-26 | Dutch League 2015-16 | Netherlands NED | 1.6 | Niels Ondersteijn | Jan Michael, Dr. Sprenger | 1/2-1/2 | 18 | Open |
| 145 | 2015-04-25 | Dutch League 2014-15 | Netherlands NED | 9.3 | Niels Ondersteijn | Pieter Nieuwenhuis | 1-0 | 46 | Open |
| 146 | 2015-04-11 | Dutch League 2014-15 | Netherlands NED | 8.9 | Manuel Bosboom | Niels Ondersteijn | 0-1 | 61 | Open |
| 147 | 2015-04-06 | 19th Neckar Open 2015 | Deizisau GER | 9.5 | Niels Ondersteijn | Arik Braun | 1/2-1/2 | 40 | Open |
| 148 | 2015-04-06 | 19th Neckar Open 2015 | Deizisau GER | 8.12 | Dmitrij Kollars | Niels Ondersteijn | 0-1 | 41 | Open |
| 149 | 2015-04-05 | 19th Neckar Open 2015 | Deizisau GER | 7.12 | Niels Ondersteijn | Leonid Milov | 1-0 | 40 | Open |
| 150 | 2015-04-04 | 19th Neckar Open 2015 | Deizisau GER | 5.7 | Niels Ondersteijn | Roland Schmaltz | 0-1 | 59 | Open |
| 151 | 2015-03-21 | Dutch League 2014-15 | Netherlands NED | 7.9 | Niels Ondersteijn | Remmelt Otten | 1/2-1/2 | 23 | Open |
| 152 | 2015-03-07 | Dutch League 2014-15 | Netherlands NED | 6.8 | Niels Ondersteijn | Joost Wempe | 1-0 | 29 | Open |
| 153 | 2015-02-07 | Dutch League 2014-15 | Netherlands NED | 5.6 | Frits Rietman | Niels Ondersteijn | 1-0 | 99 | Open |
| 154 | 2014-12-13 | Dutch League 2014-15 | Netherlands NED | 4.9 | 1015125 | Niels Ondersteijn | 0-1 | 64 | Open |
| 155 | 2014-11-22 | Dutch League 2014-15 | Netherlands NED | 3.7 | Niels Ondersteijn | Oscar Lemmers | 1-0 | 27 | Open |
| 156 | 2014-11-01 | Dutch League 2014-15 | Netherlands NED | 2.1 | Rudy Van Wessel | Niels Ondersteijn | 0-1 | 34 | Open |
| 157 | 2014-09-27 | Dutch League 2014-15 | Netherlands NED | 1.9 | Michel De Wit | Niels Ondersteijn | 1-0 | 39 | Open |
| 158 | 2014-09-19 | 30th ECC Open 2014 | Bilbao ESP | 6.1 | Niels Ondersteijn | Attila Istvan Csonka | 1/2-1/2 | 37 | Open |
| 159 | 2014-09-14 | 30th ECC Open 2014 | Bilbao ESP | 1.5 | Mateusz Bartel | Niels Ondersteijn | 1-0 | 66 | Open |
| 160 | 2014-05-10 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 9.6 | Niels Ondersteijn | Menno Okkes | 1/2-1/2 | 52 | Open |
| 161 | 2014-04-12 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 8.5 | Niels Ondersteijn | Bonno Pel | 1-0 | 64 | Open |
| 162 | 2014-03-29 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 7.8 | Niels Ondersteijn | Johan Quist | 1-0 | 39 | Open |
| 163 | 2014-02-08 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 5.1 | Niels Ondersteijn | Kambiz Sekandar | 1-0 | 44 | Open |
| 164 | 2014-01-04 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 4.1 | Henk Van der Poel | Niels Ondersteijn | 1/2-1/2 | 58 | Open |
| 165 | 2013-12-07 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 3.9 | Jan-Willem De Jong | Niels Ondersteijn | 1/2-1/2 | 27 | Open |
| 166 | 2013-11-02 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 2.1 | Zhaoqin Peng | Niels Ondersteijn | 1-0 | 64 | Open |
| 167 | 2013-09-21 | TCh-NED Meesterklasse 2013-14 | Netherland NED | 1.1 | Niels Ondersteijn | Johannes Mundorf | 1/2-1/2 | 133 | Open |
| 168 | 2013-07-24 | 36th Taminco Open | Ghent BEL | 9.4 | Andrey Sumets | Niels Ondersteijn | 1-0 | 64 | Open |
| 169 | 2013-07-23 | 36th Taminco Open | Ghent BEL | 8.11 | Niels Ondersteijn | Wouter Ghyselen | 1-0 | 59 | Open |
| 170 | 2013-07-23 | 36th Taminco Open | Ghent BEL | 7.12 | Andrew M Stone | Niels Ondersteijn | 1/2-1/2 | 8 | Open |
| 171 | 2013-07-22 | 36th Taminco Open | Ghent BEL | 6.14 | Niels Ondersteijn | Ralf Danielmeier | 1-0 | 49 | Open |
| 172 | 2013-07-22 | 36th Taminco Open | Ghent BEL | 5.8 | Ulvi Sadikhov | Niels Ondersteijn | 1-0 | 50 | Open |
| 173 | 2013-07-21 | 36th Taminco Open | Ghent BEL | 4.13 | Niels Ondersteijn | Maarten Larmuseau | 1-0 | 39 | Open |
| 174 | 2013-07-20 | 36th Taminco Open | Ghent BEL | 2.16 | Niels Ondersteijn | Martijn Maddens | 1-0 | 29 | Open |
| 175 | 2013-07-20 | 36th Taminco Open | Ghent BEL | 1.16 | Henrik Tamerus | Niels Ondersteijn | 0-1 | 40 | Open |
| 176 | 2013-04-20 | TCh-NED Meesterklasse 2012-13 | Netherland NED | 9.8 | Joost Michielsen | Niels Ondersteijn | 0-1 | 34 | Open |
| 177 | 2013-04-06 | TCh-NED Meesterklasse 2012-13 | Netherland NED | 8.1 | Niels Ondersteijn | Jorden Van Foreest | 0-1 | 70 | Open |
| 178 | 2013-02-16 | TCh-NED Meesterklasse 2012-13 | Netherland NED | 6.7 | Pieter Roggeveen | Niels Ondersteijn | 0-1 | 28 | Open |
| 179 | 2012-12-15 | TCh-NED Meesterklasse 2012-13 | Netherland NED | 5.9 | Niels Ondersteijn | Zhaoqin Peng | 0-1 | 31 | Open |
| 180 | 2012-11-24 | TCh-NED Meesterklasse 2012-13 | Netherland NED | 4.9 | Thomas Stomberg | Niels Ondersteijn | 1/2-1/2 | 38 | Open |
| 181 | 2012-11-03 | TCh-NED Meesterklasse 2012-13 | Netherland NED | 3.5 | Niels Ondersteijn | Alexander Van Beek | 1/2-1/2 | 54 | Open |
| 182 | 2012-10-06 | TCh-NED Meesterklasse 2012-13 | Netherland NED | 2.8 | Mark Haast | Niels Ondersteijn | 1/2-1/2 | 74 | Open |
| 183 | 2012-09-15 | TCh-NED Meesterklasse 2012-13 | Den Bosch NED | 1.1 | Niels Ondersteijn | Arthur Van de Oudeweetering | 0-1 | 38 | Open |
| 184 | 2012-07-18 | 35th Taminco Open | Ghent BEL | 9.6 | Niels Ondersteijn | John Van Baarle | 1-0 | 57 | Open |
| 185 | 2012-07-17 | 35th Taminco Open | Ghent BEL | 8.9 | Wouter Ghyselen | Niels Ondersteijn | 0-1 | 69 | Open |
| 186 | 2012-07-17 | 35th Taminco Open | Ghent BEL | 7.1 | Niels Ondersteijn | Yeb Blom | 1/2-1/2 | 5 | Open |
| 187 | 2012-07-16 | 35th Taminco Open | Ghent BEL | 6.4 | Stefan Docx | Niels Ondersteijn | 1-0 | 35 | Open |
| 188 | 2012-07-16 | 35th Taminco Open | Ghent BEL | 5.8 | Niels Ondersteijn | Adrian Clemens | 1-0 | 45 | Open |
| 189 | 2012-07-15 | 35th Taminco Open | Ghent BEL | 4.2 | Vyacheslav Ikonnikov | Niels Ondersteijn | 1/2-1/2 | 41 | Open |
| 190 | 2012-07-15 | 35th Taminco Open | Ghent BEL | 3.11 | Niels Ondersteijn | Bart Van der Zwet | 1-0 | 51 | Open |
| 191 | 2012-07-14 | 35th Taminco Open | Ghent BEL | 2.13 | Jean-Paul Goerens | Niels Ondersteijn | 0-1 | 30 | Open |
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