Mihnea Costachi
Country
ROU
Birth Year
2000
Gender
M
Title
International Master
FIDE ID
1217518
FIDE Rating
2459
FIDE Rating Graph
Games
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 9.2 | Ardit Uruci | Mihnea Costachi | 0-1 | 53 | Open |
| 2 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 8.4 | Mihnea Costachi | Vojtech Plat | 0-1 | 102 | Open |
| 3 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 7.9 | Leon Livaic | Mihnea Costachi | 0-1 | 44 | Open |
| 4 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 6.26 | Mihnea Costachi | Alexey Kukelko | 1-0 | 59 | Open |
| 5 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 5.29 | Mateu Boci | Mihnea Costachi | 0-1 | 37 | Open |
| 6 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 4.6 | Mihnea Costachi | Radoslaw Wojtaszek | 0-1 | 42 | Open |
| 7 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 3.32 | Tine Markocic | Mihnea Costachi | 0-1 | 32 | Open |
| 8 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 2.36 | Mihnea Costachi | Dustin Kuipers | 1-0 | 45 | Open |
| 9 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 13.13 | Kiril Georgiev | Mihnea Costachi | 1/2-1/2 | 40 | Open |
| 10 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 12.5 | Mihnea Costachi | Eduardo Iturrizaga Bonelli | 0-1 | 55 | Open |
| 11 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 11.4 | Levan Pantsulaia | Mihnea Costachi | 1/2-1/2 | 55 | Open |
| 12 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 10.1 | Mihnea Costachi | David Anton Guijarro | 1-0 | 33 | Open |
| 13 | 2025-11-30 | European Blitz 2025 | Prishtina KOS | 1.39 | Vancho Vidikjevski | Mihnea Costachi | 0-1 | 35 | Open |
| 14 | 2025-11-29 | European Rapid 2025 | Prishtina KOS | 9.19 | Mihnea Costachi | Jaime Santos Latasa | 0-1 | 52 | Open |
| 15 | 2025-11-29 | European Rapid 2025 | Prishtina KOS | 8.32 | Ergit Ramaj | Mihnea Costachi | 1/2-1/2 | 19 | Open |
| 16 | 2025-11-29 | European Rapid 2025 | Prishtina KOS | 7.36 | Mihnea Costachi | Bajrush Kelmendi | 1-0 | 43 | Open |
| 17 | 2025-11-29 | European Rapid 2025 | Prishtina KOS | 10.39 | Rodolfos Stamatiou | Mihnea Costachi | 1-0 | 39 | Open |
| 18 | 2025-11-28 | European Rapid 2025 | Prishtina KOS | 6.34 | Bank Szalay-Ocsak | Mihnea Costachi | 1/2-1/2 | 35 | Open |
| 19 | 2025-11-28 | European Rapid 2025 | Prishtina KOS | 4.36 | Lorenc Rama | Mihnea Costachi | 1/2-1/2 | 75 | Open |
| 20 | 2025-11-28 | European Rapid 2025 | Prishtina KOS | 3.5 | Mihnea Costachi | Vasyl Ivanchuk | 0-1 | 50 | Open |
| 21 | 2025-09-28 | TCh-ROU Men DivA 2025 | Eforie Nord ROU | 9.1 | Mihnea Costachi | Petru-Sebastian Ursan | 1-0 | 72 | Open |
| 22 | 2025-09-26 | TCh-ROU Men DivA 2025 | Eforie Nord ROU | 7.3 | Mihnea Costachi | Andrei-Cristian Bulau | 1/2-1/2 | 24 | Open |
| 23 | 2025-09-25 | TCh-ROU Men DivA 2025 | Eforie Nord ROU | 5.3 | Mihnea Costachi | Dragos-Andrei Antonica | 1/2-1/2 | 23 | Open |
| 24 | 2025-09-24 | TCh-ROU Men DivA 2025 | Eforie Nord ROU | 4.3 | Calin Gheorghiu | Mihnea Costachi | 0-1 | 39 | Open |
| 25 | 2025-09-23 | TCh-ROU Men DivA 2025 | Eforie Nord ROU | 3.3 | Mihnea Costachi | Randi-Ioan Gales | 1/2-1/2 | 15 | Open |
| 26 | 2025-09-23 | TCh-ROU Men DivA 2025 | Eforie Nord ROU | 2.2 | Mihnea Costachi | Razvan-Stefan Dicu | 1-0 | 33 | Open |
| 27 | 2025-09-22 | TCh-ROU Men DivA 2025 | Eforie Nord ROU | 1.2 | Christian-Arrydan Tamas | Mihnea Costachi | 1/2-1/2 | 22 | Open |
| 28 | 2025-09-14 | Craiova Grand Prix Rapid | Craiova ROU | 9.1 | Mihnea Costachi | Cristian-Clement Daianu | 1/2-1/2 | 18 | Open |
| 29 | 2025-09-14 | Craiova Grand Prix Rapid | Craiova ROU | 8.3 | Athanasios Mastrovasilis | Mihnea Costachi | 1-0 | 48 | Open |
| 30 | 2025-09-14 | Craiova Grand Prix Rapid | Craiova ROU | 7.3 | Mihnea Costachi | Liviu-Dieter Nisipeanu | 1/2-1/2 | 11 | Open |
| 31 | 2025-09-14 | Craiova Grand Prix Rapid | Craiova ROU | 6.3 | Leon Livaic | Mihnea Costachi | 0-1 | 66 | Open |
| 32 | 2025-09-14 | Craiova Grand Prix Rapid | Craiova ROU | 5.8 | Mihnea Costachi | David-Alexandru Harabor | 1-0 | 40 | Open |
| 33 | 2025-09-14 | Craiova Grand Prix Rapid | Craiova ROU | 4.13 | Mihnea Costachi | Robert-Gabriel Sava | 1/2-1/2 | 16 | Open |
| 34 | 2025-09-14 | Craiova Grand Prix Rapid | Craiova ROU | 10.9 | Reyder Cruz de la Osa | Mihnea Costachi | 0-1 | 49 | Open |
| 35 | 2025-09-13 | Craiova Grand Prix Rapid | Craiova ROU | 3.15 | Alexandru Ioan Constantinoiu | Mihnea Costachi | 0-1 | 38 | Open |
| 36 | 2025-09-13 | Craiova Grand Prix Rapid | Craiova ROU | 2.15 | Mihnea Costachi | Dragos-Nicholas Visanescu | 1-0 | 22 | Open |
| 37 | 2025-09-13 | Craiova Grand Prix Rapid | Craiova ROU | 1.15 | Teodor-Spiridon David | Mihnea Costachi | 0-1 | 77 | Open |
| 38 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 9 | Mihnea Costachi | Bertalan Szikszai | 1-0 | 61 | Open |
| 39 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 8 | Mihnea Costachi | Tran Vo Quoc Bao | 0-1 | 36 | Open |
| 40 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 7 | Alimzhan Zhauynbay | Mihnea Costachi | 0-1 | 41 | Open |
| 41 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 6 | Mihnea Costachi | Adham Kandil | 0-1 | 95 | Open |
| 42 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 5 | Haowen Xue | Mihnea Costachi | 1-0 | 41 | Open |
| 43 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 4 | Vladimir Predein | Mihnea Costachi | 0-1 | 33 | Open |
| 44 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 3 | Mihnea Costachi | Dinara Wagner | 1-0 | 53 | Open |
| 45 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 2 | Raunak Sadhwani | Mihnea Costachi | 1-0 | 41 | Open |
| 46 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 1 | Abdulla M Al-marzouqi | Mihnea Costachi | 0-1 | 12 | Open |
| 47 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 11 | Mihnea Costachi | Robert Hovhannisyan | 1/2-1/2 | 59 | Open |
| 48 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 10 | Vihaan Jammalamadaka | Mihnea Costachi | 0-1 | 44 | Open |
| 49 | 2025-05-11 | Grand Prix Bucharest 2025 | Bucharest ROU | 9.14 | Robert-Gabriel Sava | Mihnea Costachi | 0-1 | 69 | Open |
| 50 | 2025-05-11 | Grand Prix Bucharest 2025 | Bucharest ROU | 8.2 | Mihnea Costachi | Mircea-Andrei Cazan | 1-0 | 33 | Open |
| 51 | 2025-05-11 | Grand Prix Bucharest 2025 | Bucharest ROU | 7.2 | Francisco Javier Iglesias Leon | Mihnea Costachi | 1/2-1/2 | 57 | Open |
| 52 | 2025-05-11 | Grand Prix Bucharest 2025 | Bucharest ROU | 6.4 | Mihnea Costachi | Alexandr Predke | 0-1 | 37 | Open |
| 53 | 2025-05-11 | Grand Prix Bucharest 2025 | Bucharest ROU | 5.15 | Claudiu-Cristian Dobre | Mihnea Costachi | 0-1 | 46 | Open |
| 54 | 2025-05-11 | Grand Prix Bucharest 2025 | Bucharest ROU | 10.12 | Mihnea Costachi | Andrei Filip | 1/2-1/2 | 46 | Open |
| 55 | 2025-05-10 | Grand Prix Bucharest 2025 | Bucharest ROU | 4.12 | Mihnea Costachi | Andreea-Marioara Cosman | 1/2-1/2 | 63 | Open |
| 56 | 2025-05-10 | Grand Prix Bucharest 2025 | Bucharest ROU | 3.13 | Bogdan-Andrei Ivancescu | Mihnea Costachi | 0-1 | 30 | Open |
| 57 | 2025-05-10 | Grand Prix Bucharest 2025 | Bucharest ROU | 2.16 | Mihnea Costachi | Nicolae-Dan Tusu | 1-0 | 26 | Open |
| 58 | 2025-05-10 | Grand Prix Bucharest 2025 | Bucharest ROU | 1.16 | Nicolae-Gabriel Gorunescu | Mihnea Costachi | 0-1 | 30 | Open |
| 59 | 2025-02-11 | Titled Tue 11th Feb Early | chess.com INT | 2 | Claudio Paduano | Mihnea Costachi | 1-0 | 43 | Open |
| 60 | 2025-02-11 | Titled Tue 11th Feb Early | chess.com INT | 1 | Mihnea Costachi | Mikhail V. Kuznetsov | 1-0 | 89 | Open |
| 61 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 9 | Omer Akkara | Mihnea Costachi | 1-0 | 36 | Open |
| 62 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 8 | Pavel V. Tregubov | Mihnea Costachi | 0-1 | 34 | Open |
| 63 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 7 | Mihnea Costachi | Tran Vo Quoc Bao | 1-0 | 22 | Open |
| 64 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 6 | Nikita Matinian | Mihnea Costachi | 1-0 | 58 | Open |
| 65 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 5 | Mihnea Costachi | Dinesh Rajan M | 1-0 | 33 | Open |
| 66 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 4 | Bartosz Przybylski | Mihnea Costachi | 0-1 | 49 | Open |
| 67 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 3 | Mihnea Costachi | Santiago Rodriguez | 1-0 | 38 | Open |
| 68 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 2 | Dias Issabayev | Mihnea Costachi | 0-1 | 30 | Open |
| 69 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 1 | Mihnea Costachi | Leo Valle Luis | 0-1 | 56 | Open |
| 70 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 11 | Erkin Kozganbay | Mihnea Costachi | 0-1 | 54 | Open |
| 71 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 10 | Mihnea Costachi | Aleksandra Maltsevskaya | 1-0 | 35 | Open |
| 72 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 9 | Garg Aradhya | Mihnea Costachi | 0-1 | 65 | Open |
| 73 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 8 | Mihnea Costachi | Rasmus Svane | 1/2-1/2 | 47 | Open |
| 74 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 7 | Jeffery Xiong | Mihnea Costachi | 0-1 | 24 | Open |
| 75 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 6 | Mihnea Costachi | Sergey Volkov | 1-0 | 58 | Open |
| 76 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 5 | Noah Kim | Mihnea Costachi | 0-1 | 30 | Open |
| 77 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 4 | Nikita An. Kalinin | Mihnea Costachi | 0-1 | 30 | Open |
| 78 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 3 | Mihnea Costachi | David Kaufman | 0-1 | 58 | Open |
| 79 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 2 | Gennady Kozlov | Mihnea Costachi | 0-1 | 59 | Open |
| 80 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 1 | Mihnea Costachi | Viktor N. Parfenov | 1-0 | 54 | Open |
| 81 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 11 | Nodar Lortkipanidze | Mihnea Costachi | 1-0 | 69 | Open |
| 82 | 2025-01-28 | Titled Tue 28th Jan Early | chess.com INT | 10 | Mihnea Costachi | Tuan Minh Le | 0-1 | 43 | Open |
| 83 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 9 | Harshin Reddy Jagirapu | Mihnea Costachi | 0-1 | 43 | Open |
| 84 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 8 | Mihnea Costachi | Christopher Woojin Yoo | 1/2-1/2 | 31 | Open |
| 85 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 7 | Vladyslav Sydoryka | Mihnea Costachi | 0-1 | 42 | Open |
| 86 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 6 | Mihnea Costachi | Alan Petukhov | 1-0 | 27 | Open |
| 87 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 5 | Mihnea Costachi | Vladimir Burmakin | 1/2-1/2 | 48 | Open |
| 88 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 4 | Hikaru Nakamura | Mihnea Costachi | 1-0 | 58 | Open |
| 89 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 3 | Mihnea Costachi | Pavel V. Tregubov | 1-0 | 29 | Open |
| 90 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 2 | Mihnea Costachi | Oscar Gerardo Sanchez Enriquez | 1-0 | 67 | Open |
| 91 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 1 | Julian Estrada Nieto | Mihnea Costachi | 0-1 | 39 | Open |
| 92 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 11 | Mihnea Costachi | Valentin Dragnev | 1-0 | 56 | Open |
| 93 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 10 | Francesco Sonis | Mihnea Costachi | 1-0 | 41 | Open |
| 94 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 9 | Mihnea Costachi | Tran Vo Quoc Bao | 0-1 | 137 | Open |
| 95 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 8 | Karina Ambartsumova | Mihnea Costachi | 0-1 | 45 | Open |
| 96 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 7 | Derek Wu | Mihnea Costachi | 0-1 | 28 | Open |
| 97 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 6 | Mihnea Costachi | Meri Arabidze | 1/2-1/2 | 47 | Open |
| 98 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 5 | Dmitry Andreikin | Mihnea Costachi | 1-0 | 63 | Open |
| 99 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 4 | Mihnea Costachi | Jose Eduardo Martinez Alcantara | 1/2-1/2 | 44 | Open |
| 100 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 3 | Mihnea Costachi | Mario Gavilan Diaz | 1-0 | 48 | Open |
| 101 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 2 | Nathaniel Mullodzhanov | Mihnea Costachi | 0-1 | 41 | Open |
| 102 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 1 | Mihnea Costachi | Ratko Novak | 1-0 | 55 | Open |
| 103 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 11 | Mihnea Costachi | Dinesh Rajan M | 1-0 | 51 | Open |
| 104 | 2024-12-31 | Titled Tue 31st Dec Early | chess.com INT | 10 | Antonio Ruperez Benito | Mihnea Costachi | 0-1 | 66 | Open |
| 105 | 2024-12-10 | European Fischer Random | Skopje MKD | 9.15 | Markus Ragger | Mihnea Costachi | 1-0 | 62 | Open |
| 106 | 2024-12-10 | European Fischer Random | Skopje MKD | 8.25 | Mihnea Costachi | Marco Dobrikov | 1-0 | 61 | Open |
| 107 | 2024-12-10 | European Fischer Random | Skopje MKD | 7.26 | Donny Muter | Mihnea Costachi | 1/2-1/2 | 60 | Open |
| 108 | 2024-12-10 | European Fischer Random | Skopje MKD | 6.23 | Mihnea Costachi | Irina Bulmaga | 1/2-1/2 | 80 | Open |
| 109 | 2024-12-10 | European Fischer Random | Skopje MKD | 5.7 | Maxime Lagarde | Mihnea Costachi | 1-0 | 31 | Open |
| 110 | 2024-12-10 | European Fischer Random | Skopje MKD | 4.27 | Mihnea Costachi | Drazen Dragicevic | 1-0 | 65 | Open |
| 111 | 2024-12-10 | European Fischer Random | Skopje MKD | 3.26 | Odyseas Kesidis | Mihnea Costachi | 0-1 | 31 | Open |
| 112 | 2024-12-10 | European Fischer Random | Skopje MKD | 2.5 | Mihnea Costachi | David Navara | 0-1 | 32 | Open |
| 113 | 2024-12-10 | European Fischer Random | Skopje MKD | 11.27 | Jani Bogoevski | Mihnea Costachi | 0-1 | 65 | Open |
| 114 | 2024-12-10 | European Fischer Random | Skopje MKD | 10.23 | Mihnea Costachi | Yovann Gatineau | 0-1 | 33 | Open |
| 115 | 2024-12-10 | European Fischer Random | Skopje MKD | 1.4 | Maximilian Trapp | Mihnea Costachi | 0-1 | 29 | Open |
| 116 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 9.22 | Mihnea Costachi | Paulius Pultinevicius | 0-1 | 37 | Open |
| 117 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 8.27 | Mihnea Costachi | Viktoria Radeva | 1/2-1/2 | 53 | Open |
| 118 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 7.37 | Stavroula Tsolakidou | Mihnea Costachi | 0-1 | 40 | Open |
| 119 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 6.1 | Mihnea Costachi | Rauf Mamedov | 0-1 | 57 | Open |
| 120 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 5.4 | Volodymyr Vyval | Mihnea Costachi | 0-1 | 32 | Open |
| 121 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 4.42 | Mihnea Costachi | Nikolaos Sirigos | 1-0 | 58 | Open |
| 122 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 3.2 | Vladimir Fedoseev | Mihnea Costachi | 1-0 | 50 | Open |
| 123 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 2.51 | Mihnea Costachi | Magnus Mueller | 1-0 | 29 | Open |
| 124 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 13.12 | Mihnea Costachi | Mahammad Muradli | 0-1 | 36 | Open |
| 125 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 12.2 | Nikola Djukic | Mihnea Costachi | 0-1 | 31 | Open |
| 126 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 11.34 | Mihnea Costachi | Anton Zlatkov | 1-0 | 24 | Open |
| 127 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 10.41 | Anastasia Avramidou | Mihnea Costachi | 0-1 | 45 | Open |
| 128 | 2024-12-09 | European Blitz 2024 | Skopje MKD | 1.54 | Ricardo Taborda Trigo Marques | Mihnea Costachi | 0-1 | 33 | Open |
| 129 | 2024-12-08 | European Rapid 2024 | Skopje MKD | 9.22 | Alexander Motylev | Mihnea Costachi | 1-0 | 61 | Open |
| 130 | 2024-12-08 | European Rapid 2024 | Skopje MKD | 8.16 | Mihnea Costachi | Jaime Santos Latasa | 1/2-1/2 | 87 | Open |
| 131 | 2024-12-08 | European Rapid 2024 | Skopje MKD | 7.41 | Vitaliy Promyshlyanskiy | Mihnea Costachi | 0-1 | 68 | Open |
| 132 | 2024-12-08 | European Rapid 2024 | Skopje MKD | 11.25 | Bogdan-Daniel Deac | Mihnea Costachi | 1/2-1/2 | 62 | Open |
| 133 | 2024-12-08 | European Rapid 2024 | Skopje MKD | 10.45 | Mihnea Costachi | Bogdan Podlesnik | 1-0 | 77 | Open |
| 134 | 2024-12-07 | European Rapid 2024 | Skopje MKD | 6.15 | Mihnea Costachi | Giga Quparadze | 0-1 | 44 | Open |
| 135 | 2024-12-07 | European Rapid 2024 | Skopje MKD | 5.48 | Alejandro Yuste Valenzuela | Mihnea Costachi | 0-1 | 75 | Open |
| 136 | 2024-12-07 | European Rapid 2024 | Skopje MKD | 4.48 | Mihnea Costachi | Alexandros Iskos | 1-0 | 45 | Open |
| 137 | 2024-12-07 | European Rapid 2024 | Skopje MKD | 3.9 | Anton Korobov | Mihnea Costachi | 1-0 | 33 | Open |
| 138 | 2024-10-05 | TCh-ROU Superliga 2024 | Mamaia ROU | 8.5 | Oleg Maximov | Mihnea Costachi | 0-1 | 89 | Open |
| 139 | 2024-10-03 | TCh-ROU Superliga 2024 | Mamaia ROU | 6.4 | Matei-Teodor Dodoi | Mihnea Costachi | 1/2-1/2 | 53 | Open |
| 140 | 2024-10-01 | TCh-ROU Superliga 2024 | Mamaia ROU | 4.5 | Mihnea Costachi | Catalin-Lucian Patrascu | 1/2-1/2 | 21 | Open |
| 141 | 2024-09-28 | TCh-ROU Superliga 2024 | Mamaia ROU | 1.11 | Mihai-Edward Padurariu | Mihnea Costachi | 1/2-1/2 | 53 | Open |
| 142 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 9.9 | Bogdan-Daniel Deac | Mihnea Costachi | 1-0 | 45 | Open |
| 143 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 8.13 | Pranesh M | Mihnea Costachi | 1/2-1/2 | 55 | Open |
| 144 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 7.12 | Mihnea Costachi | Leandro Krysa | 1/2-1/2 | 55 | Open |
| 145 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 6.25 | Mihaela Sandu | Mihnea Costachi | 0-1 | 34 | Open |
| 146 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 5.3 | Mihnea Costachi | Masa Maksimovic | 1-0 | 32 | Open |
| 147 | 2024-08-03 | Cristina Foisor Mem Rapid | Timisoara ROU | 4.8 | David Gavrilescu | Mihnea Costachi | 1-0 | 38 | Open |
| 148 | 2024-07-14 | 43rd Benasque Open 2024 | Benasque ESP | 10.16 | Mihnea Costachi | Karthik Rajaa | 1/2-1/2 | 12 | Open |
| 149 | 2024-07-13 | 43rd Benasque Open 2024 | Benasque ESP | 9.16 | Cristian Andres Hernandez | Mihnea Costachi | 1/2-1/2 | 15 | Open |
| 150 | 2024-07-12 | 43rd Benasque Open 2024 | Benasque ESP | 8.8 | Mihnea Costachi | Daniil Yuffa | 1/2-1/2 | 45 | Open |
| 151 | 2024-07-11 | 43rd Benasque Open 2024 | Benasque ESP | 7.12 | Lachezar Yordanov | Mihnea Costachi | 1/2-1/2 | 8 | Open |
| 152 | 2024-07-10 | 43rd Benasque Open 2024 | Benasque ESP | 6.5 | Giga Quparadze | Mihnea Costachi | 1/2-1/2 | 83 | Open |
| 153 | 2024-07-09 | 43rd Benasque Open 2024 | Benasque ESP | 5.3 | Mihnea Costachi | Gopal G.N. | 1/2-1/2 | 13 | Open |
| 154 | 2024-07-08 | 43rd Benasque Open 2024 | Benasque ESP | 4.14 | Mihnea Costachi | Mauro Sanroman Costas | 1-0 | 48 | Open |
| 155 | 2024-07-07 | 43rd Benasque Open 2024 | Benasque ESP | 3.18 | Adrian Antonio Garcia Garcia | Mihnea Costachi | 0-1 | 34 | Open |
| 156 | 2024-07-06 | 43rd Benasque Open 2024 | Benasque ESP | 2.21 | Mihnea Costachi | Haymar Leone Amigot | 1-0 | 66 | Open |
| 157 | 2024-07-05 | 43rd Benasque Open 2024 | Benasque ESP | 1.23 | Mikel Ochoa Aldaz | Mihnea Costachi | 0-1 | 20 | Open |
| 158 | 2024-06-14 | Cluj GP Rapid 2024 | Cluj ROU | 9.15 | Mihnea Costachi | Alexandru Manea | 1/2-1/2 | 61 | Open |
| 159 | 2024-06-14 | Cluj GP Rapid 2024 | Cluj ROU | 8.2 | Andreea-Marioara Cosman | Mihnea Costachi | 0-1 | 36 | Open |
| 160 | 2024-06-14 | Cluj GP Rapid 2024 | Cluj ROU | 7.26 | Mihnea Costachi | Vlad-Bogdan Ghita | 1-0 | 30 | Open |
| 161 | 2024-06-14 | Cluj GP Rapid 2024 | Cluj ROU | 6.15 | Alexandru Sachilaru | Mihnea Costachi | 1-0 | 38 | Open |
| 162 | 2024-06-14 | Cluj GP Rapid 2024 | Cluj ROU | 5.5 | Mihnea Costachi | Narayanan S L | 0-1 | 47 | Open |
| 163 | 2024-06-14 | Cluj GP Rapid 2024 | Cluj ROU | 10.13 | Stanislav Cebotari | Mihnea Costachi | 1/2-1/2 | 79 | Open |
| 164 | 2024-06-13 | Cluj GP Rapid 2024 | Cluj ROU | 4.14 | Dragos-Nicholas Visanescu | Mihnea Costachi | 0-1 | 39 | Open |
| 165 | 2024-06-13 | Cluj GP Rapid 2024 | Cluj ROU | 3.18 | Mihnea Costachi | Lia-Alexandra Maria | 1-0 | 39 | Open |
| 166 | 2024-06-13 | Cluj GP Rapid 2024 | Cluj ROU | 2.2 | Bogdan-Andrei Ivancescu | Mihnea Costachi | 0-1 | 36 | Open |
| 167 | 2024-06-13 | Cluj GP Rapid 2024 | Cluj ROU | 1.2 | Mihnea Costachi | Andrei-Cornel Stanescu | 1-0 | 47 | Open |
| 168 | 2024-03-24 | Grand Prix Bucharest 2024 | Bucharest ROU | 9.4 | Mihnea Costachi | Ruslan Ponomariov | 0-1 | 40 | Open |
| 169 | 2024-03-24 | Grand Prix Bucharest 2024 | Bucharest ROU | 8.1 | Yuriy Kuzubov | Mihnea Costachi | 0-1 | 55 | Open |
| 170 | 2024-03-24 | Grand Prix Bucharest 2024 | Bucharest ROU | 7.22 | Mihnea Costachi | Mihai Veneteanu | 1-0 | 34 | Open |
| 171 | 2024-03-24 | Grand Prix Bucharest 2024 | Bucharest ROU | 6.9 | Bogdan-Daniel Deac | Mihnea Costachi | 1-0 | 67 | Open |
| 172 | 2024-03-24 | Grand Prix Bucharest 2024 | Bucharest ROU | 5.14 | Mihnea Costachi | Teodor-Cosmin Nedelcu | 1-0 | 34 | Open |
| 173 | 2024-03-24 | Grand Prix Bucharest 2024 | Bucharest ROU | 10.22 | Georgi Filev | Mihnea Costachi | 1/2-1/2 | 27 | Open |
| 174 | 2024-03-23 | Grand Prix Bucharest 2024 | Bucharest ROU | 4.24 | Robert-Daniel Pisu | Mihnea Costachi | 0-1 | 43 | Open |
| 175 | 2024-03-23 | Grand Prix Bucharest 2024 | Bucharest ROU | 3.29 | Mihnea Costachi | Angela Dragomirescu | 1/2-1/2 | 80 | Open |
| 176 | 2024-03-23 | Grand Prix Bucharest 2024 | Bucharest ROU | 2.29 | Alf Andries | Mihnea Costachi | 0-1 | 47 | Open |
| 177 | 2024-03-23 | Grand Prix Bucharest 2024 | Bucharest ROU | 1.29 | Mihnea Costachi | Vlad V. Stoica | 1-0 | 24 | Open |
| 178 | 2024-02-13 | Titled Tue 13th Feb Early | chess.com INT | 4 | Mihnea Costachi | Daniel Girsh | 0-1 | 63 | Open |
| 179 | 2024-02-13 | Titled Tue 13th Feb Early | chess.com INT | 3 | Teimour Radjabov | Mihnea Costachi | 1-0 | 44 | Open |
| 180 | 2024-02-13 | Titled Tue 13th Feb Early | chess.com INT | 2 | Davide Podetti | Mihnea Costachi | 0-1 | 37 | Open |
| 181 | 2024-02-13 | Titled Tue 13th Feb Early | chess.com INT | 1 | Mihnea Costachi | Asa Hoffmann | 1-0 | 47 | Open |
| 182 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 9 | Piotr Piesik | Mihnea Costachi | 1/2-1/2 | 56 | Open |
| 183 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 8 | Mihnea Costachi | Singh Ojasva | 1/2-1/2 | 57 | Open |
| 184 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 7 | Mihnea Costachi | Shahzod Vakhidov | 1-0 | 37 | Open |
| 185 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 6 | Ramil Sadykov | Mihnea Costachi | 0-1 | 39 | Open |
| 186 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 5 | Mihnea Costachi | Daniel Gutierrez Olivares | 1-0 | 30 | Open |
| 187 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 4 | Mihnea Costachi | Shubh Jayesh Laddha | 1/2-1/2 | 49 | Open |
| 188 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 3 | Moksh Amit Doshi | Mihnea Costachi | 1-0 | 64 | Open |
| 189 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 2 | Mihnea Costachi | Ariel Tokman | 1/2-1/2 | 67 | Open |
| 190 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 1 | Ruslan Musalov | Mihnea Costachi | 0-1 | 45 | Open |
| 191 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 11 | Aleksandra Maltsevskaya | Mihnea Costachi | 0-1 | 55 | Open |
| 192 | 2024-02-06 | Titled Tue 6th Feb Early | chess.com INT | 10 | Mihnea Costachi | Piotr Kejna | 1/2-1/2 | 64 | Open |
| 193 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 9 | Mihnea Costachi | Erigaisi Arjun | 0-1 | 48 | Open |
| 194 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 8 | Semen Novozhilov | Mihnea Costachi | 0-1 | 37 | Open |
| 195 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 7 | Mihnea Costachi | Jose Fernando Cuenca Jimenez | 1-0 | 35 | Open |
| 196 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 6 | Alexander Grischuk | Mihnea Costachi | 1-0 | 73 | Open |
| 197 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 5 | Mihnea Costachi | V Pranav | 0-1 | 46 | Open |
| 198 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 4 | Mihnea Costachi | Jorden Van Foreest | 1-0 | 45 | Open |
| 199 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 3 | Iung Alicio de O. Pinheiro | Mihnea Costachi | 0-1 | 39 | Open |
| 200 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 2 | Damir Ismagilov | Mihnea Costachi | 0-1 | 38 | Open |
| 201 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 1 | Mihnea Costachi | Janelle Mae Frayna | 1-0 | 47 | Open |
| 202 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 11 | Mihnea Costachi | Yevhen Sharapov | 1-0 | 15 | Open |
| 203 | 2024-01-09 | Titled Tue 9th Jan Early | chess.com INT | 10 | Enrique Tejedor Fuente | Mihnea Costachi | 0-1 | 46 | Open |
| 204 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 2 | Mihnea Costachi | Ivan Kochiev | 1/2-1/2 | 120 | Open |
| 205 | 2024-01-02 | Titled Tue 2nd Jan Late | chess.com INT | 1 | Enzo Federzoni | Mihnea Costachi | 0-1 | 56 | Open |
| 206 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 9 | Mihnea Costachi | Kanan Hajiyev | 1-0 | 74 | Open |
| 207 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 8 | Aleks Sahakyan | Mihnea Costachi | 1/2-1/2 | 100 | Open |
| 208 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 7 | Mihnea Costachi | Shaik Sumer Arsh | 1-0 | 39 | Open |
| 209 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 6 | Mihnea Costachi | Jain Jeet | 1-0 | 64 | Open |
| 210 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 5 | Ioan Rees | Mihnea Costachi | 0-1 | 23 | Open |
| 211 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 4 | Mihnea Costachi | Lionel Sierra Vallina | 0-1 | 59 | Open |
| 212 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 3 | Daniel Cremisi | Mihnea Costachi | 1-0 | 111 | Open |
| 213 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 2 | Daniel Taboas Rodriguez | Mihnea Costachi | 0-1 | 49 | Open |
| 214 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 1 | Mihnea Costachi | Viacheslav Tikhonov | 1-0 | 52 | Open |
| 215 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 11 | Mihnea Costachi | Zurab Javakhadze | 1-0 | 57 | Open |
| 216 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 10 | Vugar Rasulov | Mihnea Costachi | 1-0 | 60 | Open |
| 217 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 9.28 | Maksym Goroshkov | Mihnea Costachi | 1/2-1/2 | 42 | Open |
| 218 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 8.33 | Mihnea Costachi | Christian Maier | 1-0 | 31 | Open |
| 219 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 7.8 | David Navara | Mihnea Costachi | 1-0 | 63 | Open |
| 220 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 6.32 | Mihnea Costachi | Drazen Dragicevic | 1-0 | 42 | Open |
| 221 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 5.23 | Nejc Herega | Mihnea Costachi | 1/2-1/2 | 34 | Open |
| 222 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 4.2 | Mihnea Costachi | Alexey Sarana | 1/2-1/2 | 89 | Open |
| 223 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 3.33 | Daniel Vojak | Mihnea Costachi | 0-1 | 37 | Open |
| 224 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 13.31 | Kevin Kahleys | Mihnea Costachi | 1/2-1/2 | 61 | Open |
| 225 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 12.27 | Mihnea Costachi | Jernej Spalir | 1/2-1/2 | 54 | Open |
| 226 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 11.11 | Laurent Fressinet | Mihnea Costachi | 1-0 | 67 | Open |
| 227 | 2023-12-16 | European Blitz 2023 | Zagreb CRO | 10.26 | Mihnea Costachi | Filip Radenic | 1-0 | 66 | Open |
| 228 | 2023-12-15 | European Rapid 2023 | Zagreb CRO | 9.37 | David Haszon | Mihnea Costachi | 1/2-1/2 | 71 | Open |
| 229 | 2023-12-15 | European Rapid 2023 | Zagreb CRO | 8.35 | Mihnea Costachi | Valentyn Hulka | 1/2-1/2 | 23 | Open |
| 230 | 2023-12-15 | European Rapid 2023 | Zagreb CRO | 11.38 | Maksym Goroshkov | Mihnea Costachi | 0-1 | 48 | Open |
| 231 | 2023-12-15 | European Rapid 2023 | Zagreb CRO | 10.39 | Mihnea Costachi | Volodymyr Vyval | 1/2-1/2 | 66 | Open |
| 232 | 2023-12-14 | European Rapid 2023 | Zagreb CRO | 6.16 | Mihnea Costachi | Daniel Dardha | 0-1 | 43 | Open |
| 233 | 2023-12-14 | European Rapid 2023 | Zagreb CRO | 4.2 | Mihnea Costachi | Ivan Saric | 1/2-1/2 | 31 | Open |
| 234 | 2023-12-02 | TCh-ROU Rapid 2023 | Sebes ROU | 8.9 | Mihnea Costachi | Daniel-Cristian Padurean | 1-0 | 23 | Open |
| 235 | 2023-12-02 | TCh-ROU Rapid 2023 | Sebes ROU | 7.9 | Teodor-Cosmin Nedelcu | Mihnea Costachi | 1-0 | 40 | Open |
| 236 | 2023-12-02 | TCh-ROU Rapid 2023 | Sebes ROU | 6.5 | Mihnea Costachi | Andrei Negrean | 1/2-1/2 | 26 | Open |
| 237 | 2023-12-02 | TCh-ROU Rapid 2023 | Sebes ROU | 5.5 | Lucian-Costin Miron | Mihnea Costachi | 1/2-1/2 | 34 | Open |
| 238 | 2023-12-02 | TCh-ROU Rapid 2023 | Sebes ROU | 4.1 | Mihnea Costachi | Constantin Lupulescu | 0-1 | 17 | Open |
| 239 | 2023-12-02 | TCh-ROU Rapid 2023 | Sebes ROU | 3.5 | Mihnea Costachi | Costica-Ciprian Nanu | 1/2-1/2 | 15 | Open |
| 240 | 2023-12-02 | TCh-ROU Rapid 2023 | Sebes ROU | 2.9 | Nicolae Dicu | Mihnea Costachi | 0-1 | 23 | Open |
| 241 | 2023-12-02 | TCh-ROU Rapid 2023 | Sebes ROU | 1.9 | Mihnea Costachi | Romulus-Cristian Stefan | 1-0 | 38 | Open |
| 242 | 2023-11-14 | Titled Tue 14th Nov Early | chess.com INT | 5 | Pawel Dudzinski | Mihnea Costachi | 1-0 | 1 | Open |
| 243 | 2023-11-14 | Titled Tue 14th Nov Early | chess.com INT | 4 | Mihnea Costachi | Shakked Tifferet | 1/2-1/2 | 73 | Open |
| 244 | 2023-11-14 | Titled Tue 14th Nov Early | chess.com INT | 3 | Pavel Chernomordik | Mihnea Costachi | 1/2-1/2 | 87 | Open |
| 245 | 2023-11-14 | Titled Tue 14th Nov Early | chess.com INT | 2 | Mihnea Costachi | Robert-Paul Nastase | 1-0 | 42 | Open |
| 246 | 2023-11-14 | Titled Tue 14th Nov Early | chess.com INT | 1 | Daniel Gutierrez Olivares | Mihnea Costachi | 1-0 | 20 | Open |
| 247 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 9 | Ari Kiremitciyan | Mihnea Costachi | 1/2-1/2 | 45 | Open |
| 248 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 8 | Sargis A. Manukyan | Mihnea Costachi | 1-0 | 41 | Open |
| 249 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 7 | Mihnea Costachi | Vladimir Goncharov | 1-0 | 44 | Open |
| 250 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 6 | Sjoerd Van Roon | Mihnea Costachi | 0-1 | 42 | Open |
| 251 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 5 | Mihnea Costachi | Lamel McBryde | 1-0 | 23 | Open |
| 252 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 4 | Mihnea Costachi | Ekaterina Goltseva | 0-1 | 77 | Open |
| 253 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 3 | Thalia Cervantes Landeiro | Mihnea Costachi | 1/2-1/2 | 52 | Open |
| 254 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 2 | Mihnea Costachi | Valery Skatchkov | 0-1 | 43 | Open |
| 255 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 1 | Sebastien Azar | Mihnea Costachi | 0-1 | 54 | Open |
| 256 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 11 | Oleksandr Kuzhylnyi | Mihnea Costachi | 0-1 | 40 | Open |
| 257 | 2023-10-31 | Titled Tue 31st Oct Early | chess.com INT | 10 | Mihnea Costachi | Konstantin Andreev | 1-0 | 27 | Open |
| 258 | 2023-09-29 | TCh-ROU Superliga 2023 | Eforie Nord ROU | 9.6 | Hunor-Zoltan Antal | Mihnea Costachi | 1-0 | 56 | Open |
| 259 | 2023-09-27 | TCh-ROU Superliga 2023 | Eforie Nord ROU | 7.6 | Dragos-Andrei Antonica | Mihnea Costachi | 1/2-1/2 | 9 | Open |
| 260 | 2023-09-26 | TCh-ROU Superliga 2023 | Eforie Nord ROU | 6.6 | Mihnea Costachi | Andrei Filip | 1-0 | 53 | Open |
| 261 | 2023-09-25 | TCh-ROU Superliga 2023 | Eforie Nord ROU | 5.6 | Tamas-Kristof Balla | Mihnea Costachi | 0-1 | 32 | Open |
| 262 | 2023-09-24 | TCh-ROU Superliga 2023 | Eforie Nord ROU | 4.6 | Mihnea Costachi | Adrian-Marian Petrisor | 1/2-1/2 | 20 | Open |
| 263 | 2023-09-23 | TCh-ROU Superliga 2023 | Eforie Nord ROU | 3.6 | Iulian Barzanu | Mihnea Costachi | 0-1 | 65 | Open |
| 264 | 2023-09-22 | TCh-ROU Superliga 2023 | Eforie Nord ROU | 2.5 | Nicodim-Cosmin Stepanencu | Mihnea Costachi | 1/2-1/2 | 16 | Open |
| 265 | 2023-09-21 | TCh-ROU Superliga 2023 | Eforie Nord ROU | 1.6 | Mihnea Costachi | Daniel-Vasilica Popescu | 1-0 | 69 | Open |
| 266 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 9 | Mihnea Costachi | Evgeny Postny | 0-1 | 20 | Open |
| 267 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 8 | Mihnea Costachi | Ankush Khandelwal | 0-1 | 37 | Open |
| 268 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 7 | Maxim Matlakov | Mihnea Costachi | 1/2-1/2 | 55 | Open |
| 269 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 6 | Michel Alejandro Diaz Perez | Mihnea Costachi | 0-1 | 60 | Open |
| 270 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 5 | Mihnea Costachi | Mohamed Ezat | 1-0 | 51 | Open |
| 271 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 4 | Jaloliddin Ilkhomi | Mihnea Costachi | 1/2-1/2 | 110 | Open |
| 272 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 3 | Mihnea Costachi | Fernando Valenzuela Gomez | 1-0 | 17 | Open |
| 273 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 2 | Mihnea Costachi | Jaiveer Mahendru | 1-0 | 34 | Open |
| 274 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 1 | Arseniy Astafurov | Mihnea Costachi | 1/2-1/2 | 105 | Open |
| 275 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 11 | Mihnea Costachi | Mark Smirnov | 0-1 | 24 | Open |
| 276 | 2023-09-19 | Titled Tue 19th Sep Early | chess.com INT | 10 | Amanmuhammet Hommadov | Mihnea Costachi | 1/2-1/2 | 43 | Open |
| 277 | 2023-08-06 | Cristina Foisor Mem Rapid | Timisoara ROU | 8.25 | Mihnea Costachi | Mihnea-Ionut Ognean | 0-1 | 70 | Open |
| 278 | 2023-08-06 | Cristina Foisor Mem Rapid | Timisoara ROU | 7.5 | Haik M. Martirosyan | Mihnea Costachi | 1-0 | 56 | Open |
| 279 | 2023-08-05 | Cristina Foisor Mem Rapid | Timisoara ROU | 4.18 | Constantin Lupulescu | Mihnea Costachi | 1/2-1/2 | 79 | Open |
| 280 | 2023-05-16 | Titled Tue 16th May Late | chess.com INT | 1 | Casper Liu | Mihnea Costachi | 1-0 | 28 | Open |
| 281 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 9 | Mihnea Costachi | Li Min Peng | 0-1 | 27 | Open |
| 282 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 8 | Dmitry Lavrik | Mihnea Costachi | 0-1 | 46 | Open |
| 283 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 7 | Mihnea Costachi | Eldiyar Orozbaev | 0-1 | 72 | Open |
| 284 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 6 | Levy Rozman | Mihnea Costachi | 0-1 | 35 | Open |
| 285 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 5 | Mihnea Costachi | Oskar Wieczorek | 1-0 | 50 | Open |
| 286 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 4 | Uurtsaikh Agibileg | Mihnea Costachi | 0-1 | 85 | Open |
| 287 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 3 | Mihnea Costachi | Le Thao Nguyen Pham | 1-0 | 39 | Open |
| 288 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 2 | Leo Valle Luis | Mihnea Costachi | 0-1 | 79 | Open |
| 289 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 1 | Mihnea Costachi | Bartosz Sowul | 0-1 | 46 | Open |
| 290 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 11 | Ernesto J. Fernandez Guillen | Mihnea Costachi | 0-1 | 75 | Open |
| 291 | 2023-05-09 | Titled Tue 9th May Early | chess.com INT | 10 | Gianmarco Leiva | Mihnea Costachi | 0-1 | 59 | Open |
| 292 | 2023-04-30 | Grand Prix Bucharest 2023 | Bucharest ROU | 9.13 | Mihnea Costachi | Jakub Roubalik | 1-0 | 46 | Open |
| 293 | 2023-04-30 | Grand Prix Bucharest 2023 | Bucharest ROU | 8.16 | Nicodim-Cosmin Stepanencu | Mihnea Costachi | 0-1 | 90 | Open |
| 294 | 2023-04-30 | Grand Prix Bucharest 2023 | Bucharest ROU | 7.22 | Mihnea Costachi | Dragos-Nicolae Dumitrache | 1-0 | 31 | Open |
| 295 | 2023-04-30 | Grand Prix Bucharest 2023 | Bucharest ROU | 6.17 | Filip Magold | Mihnea Costachi | 1-0 | 40 | Open |
| 296 | 2023-04-30 | Grand Prix Bucharest 2023 | Bucharest ROU | 5.19 | Mihnea Costachi | Silvia-Raluca Sgircea | 1-0 | 34 | Open |
| 297 | 2023-04-30 | Grand Prix Bucharest 2023 | Bucharest ROU | 10.7 | Raunak Sadhwani | Mihnea Costachi | 1-0 | 48 | Open |
| 298 | 2023-04-29 | Grand Prix Bucharest 2023 | Bucharest ROU | 4.2 | Cristian-Clement Daianu | Mihnea Costachi | 1/2-1/2 | 39 | Open |
| 299 | 2023-04-29 | Grand Prix Bucharest 2023 | Bucharest ROU | 3.19 | Mihnea Costachi | Mihai-Edward Padurariu | 1/2-1/2 | 38 | Open |
| 300 | 2023-04-29 | Grand Prix Bucharest 2023 | Bucharest ROU | 2.24 | Ema Obada | Mihnea Costachi | 0-1 | 47 | Open |
| 301 | 2023-04-29 | Grand Prix Bucharest 2023 | Bucharest ROU | 1.26 | Mihnea Costachi | Ionel Linca | 1-0 | 53 | Open |
| 302 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 3 | Mihnea Costachi | Philipp Sonnenschein | 0-1 | 68 | Open |
| 303 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 2 | Aleksandar Topalov | Mihnea Costachi | 0-1 | 47 | Open |
| 304 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 1 | Mihnea Costachi | Samuel Fieberg | 0-1 | 46 | Open |
| 305 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 9 | Mihnea Costachi | Alexey Averjanov | 1/2-1/2 | 65 | Open |
| 306 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 9 | Mihnea Costachi | Vasyl Ivanchuk | 0-1 | 40 | Open |
| 307 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 8 | Sergey D. Rodchenkov | Mihnea Costachi | 0-1 | 56 | Open |
| 308 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 8 | Dmitry Andreikin | Mihnea Costachi | 1-0 | 35 | Open |
| 309 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 7 | Viktor Berezin | Mihnea Costachi | 0-1 | 41 | Open |
| 310 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 7 | Mihnea Costachi | Ali Rastbod | 1-0 | 61 | Open |
| 311 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 6 | Mihnea Costachi | Moksh Amit Doshi | 1-0 | 30 | Open |
| 312 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 6 | Jan-Krzysztof Duda | Mihnea Costachi | 1-0 | 37 | Open |
| 313 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 5 | Yuri Kozin | Mihnea Costachi | 1-0 | 48 | Open |
| 314 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 5 | Mihnea Costachi | Jake Kleiman | 1-0 | 47 | Open |
| 315 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 4 | Olexandr Bortnyk | Mihnea Costachi | 1-0 | 35 | Open |
| 316 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 4 | Mihnea Costachi | Mukherjee Arpita | 1-0 | 40 | Open |
| 317 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 3 | Nagare Kaivalya Sandip | Mihnea Costachi | 1-0 | 30 | Open |
| 318 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 3 | Mihnea Costachi | Raem Sherman | 1-0 | 56 | Open |
| 319 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 2 | Kelvin Antonio Sanchez Alvares | Mihnea Costachi | 0-1 | 28 | Open |
| 320 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 2 | Mihnea Costachi | Vladimir Goncharov | 1-0 | 59 | Open |
| 321 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 1 | Enzo Federzoni | Mihnea Costachi | 0-1 | 54 | Open |
| 322 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 1 | Mihnea Costachi | Eelke De Boer | 1-0 | 36 | Open |
| 323 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 11 | Peter Prohaszka | Mihnea Costachi | 0-1 | 76 | Open |
| 324 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 11 | Mihnea Costachi | Valery Skatchkov | 1-0 | 30 | Open |
| 325 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 10 | Peter Lizak | Mihnea Costachi | 0-1 | 41 | Open |
| 326 | 2023-04-18 | Titled Tue 18th Apr Early | chess.com INT | 10 | Andrei Skvortsov | Mihnea Costachi | 1-0 | 76 | Open |
| 327 | 2023-04-11 | Titled Tue 11th Apr Early | chess.com INT | 8 | Shahzod Vakhidov | Mihnea Costachi | 1-0 | 34 | Open |
| 328 | 2023-04-11 | Titled Tue 11th Apr Early | chess.com INT | 7 | Mihnea Costachi | Evgenij Novikov | 1-0 | 33 | Open |
| 329 | 2023-04-11 | Titled Tue 11th Apr Early | chess.com INT | 6 | Hernan Filgueira | Mihnea Costachi | 1-0 | 63 | Open |
| 330 | 2023-04-11 | Titled Tue 11th Apr Early | chess.com INT | 5 | Mihnea Costachi | Krzysztof Budrewicz | 1-0 | 56 | Open |
| 331 | 2023-04-11 | Titled Tue 11th Apr Early | chess.com INT | 4 | Jain Jeet | Mihnea Costachi | 1-0 | 41 | Open |
| 332 | 2023-04-11 | Titled Tue 11th Apr Early | chess.com INT | 3 | Mihnea Costachi | Jeevan Karamsetty | 1-0 | 47 | Open |
| 333 | 2023-04-11 | Titled Tue 11th Apr Late | chess.com INT | 3 | Mihnea Costachi | Sai Han Thiha | 0-1 | 31 | Open |
| 334 | 2023-04-11 | Titled Tue 11th Apr Early | chess.com INT | 2 | Olesya Shevtchenko | Mihnea Costachi | 1-0 | 63 | Open |
| 335 | 2023-04-11 | Titled Tue 11th Apr Late | chess.com INT | 2 | Lennert Lenaerts | Mihnea Costachi | 1-0 | 55 | Open |
| 336 | 2023-04-11 | Titled Tue 11th Apr Late | chess.com INT | 1 | Mihnea Costachi | Ahmad Siar Wahedi | 1-0 | 32 | Open |
| 337 | 2023-04-11 | Titled Tue 11th Apr Early | chess.com INT | 1 | Mihnea Costachi | Charles Adelman | 1-0 | 42 | Open |
| 338 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 9 | Gergely Antal | Mihnea Costachi | 1/2-1/2 | 58 | Open |
| 339 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 8 | Mihnea Costachi | Vladyslav Fishchuk | 1-0 | 59 | Open |
| 340 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 7 | Nikita Matinian | Mihnea Costachi | 1/2-1/2 | 70 | Open |
| 341 | 2023-04-04 | Titled Tue 4th Apr Late | chess.com INT | 6 | Mihnea Costachi | Mario Andres Fernandez Sanchez | 0-1 | 72 | Open |
| 342 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 6 | Mihnea Costachi | Jose Eduardo Martinez Alcantara | 0-1 | 63 | Open |
| 343 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 5 | Mihnea Costachi | Sergei Zhigalko | 1-0 | 26 | Open |
| 344 | 2023-04-04 | Titled Tue 4th Apr Late | chess.com INT | 5 | Wojciech Przybylski | Mihnea Costachi | 1-0 | 61 | Open |
| 345 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 4 | Olexandr Bortnyk | Mihnea Costachi | 1/2-1/2 | 45 | Open |
| 346 | 2023-04-04 | Titled Tue 4th Apr Late | chess.com INT | 4 | Mihnea Costachi | Aleksa Petrovic | 0-1 | 66 | Open |
| 347 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 3 | Mihnea Costachi | Umid Aslanov | 1-0 | 23 | Open |
| 348 | 2023-04-04 | Titled Tue 4th Apr Late | chess.com INT | 3 | Jan-Krzysztof Duda | Mihnea Costachi | 1-0 | 61 | Open |
| 349 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 2 | Joaquin Fiorito | Mihnea Costachi | 0-1 | 60 | Open |
| 350 | 2023-04-04 | Titled Tue 4th Apr Late | chess.com INT | 2 | Mihnea Costachi | Nikolaos Koutlas | 1-0 | 41 | Open |
| 351 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 1 | Mihnea Costachi | Elbek Jumanov | 1-0 | 31 | Open |
| 352 | 2023-04-04 | Titled Tue 4th Apr Late | chess.com INT | 1 | Dominik Marczuk | Mihnea Costachi | 0-1 | 46 | Open |
| 353 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 11 | Sargis A. Manukyan | Mihnea Costachi | 1-0 | 64 | Open |
| 354 | 2023-04-04 | Titled Tue 4th Apr Early | chess.com INT | 10 | Mihnea Costachi | Khuyagtsogt Itgelt | 0-1 | 41 | Open |
| 355 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 9 | Mihnea Costachi | David Anton Guijarro | 1-0 | 33 | Open |
| 356 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 8 | Vladimir Kramnik | Mihnea Costachi | 1/2-1/2 | 40 | Open |
| 357 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 8 | Mihnea Costachi | Saar Drori | 0-1 | 44 | Open |
| 358 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 7 | Ali Mortazavi | Mihnea Costachi | 0-1 | 96 | Open |
| 359 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 7 | Mihnea Costachi | Mykola Bortnyk | 1/2-1/2 | 50 | Open |
| 360 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 6 | Anastasia Bodnaruk | Mihnea Costachi | 1-0 | 50 | Open |
| 361 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 6 | Mahdi Gholami Orimi | Mihnea Costachi | 0-1 | 61 | Open |
| 362 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 5 | Jose Fernando Cuenca Jimenez | Mihnea Costachi | 0-1 | 49 | Open |
| 363 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 5 | Mihnea Costachi | Alejandro Domingo Nunez | 0-1 | 45 | Open |
| 364 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 4 | Mihnea Costachi | Dino Ballecer | 1-0 | 39 | Open |
| 365 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 4 | Mihnea Costachi | Daniel Taboas Rodriguez | 1-0 | 39 | Open |
| 366 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 3 | Ivan Kubatko | Mihnea Costachi | 0-1 | 35 | Open |
| 367 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 3 | Sergio Guerrero Olmos | Mihnea Costachi | 1-0 | 74 | Open |
| 368 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 2 | Mihnea Costachi | Thomas Villiers | 1-0 | 31 | Open |
| 369 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 2 | Mihnea Costachi | Mohamed Ezat | 1-0 | 69 | Open |
| 370 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 1 | Ahmad Siar Wahedi | Mihnea Costachi | 0-1 | 69 | Open |
| 371 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 1 | Yuri Kozin | Mihnea Costachi | 1-0 | 68 | Open |
| 372 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 11 | Mihnea Costachi | Dmitry Goltsev | 1-0 | 32 | Open |
| 373 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 10 | Jan-Krzysztof Duda | Mihnea Costachi | 1-0 | 62 | Open |
| 374 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 9 | Mihnea Costachi | Or Bronstein | 0-1 | 40 | Open |
| 375 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 9 | Mihnea Costachi | Andrei Skvortsov | 0-1 | 54 | Open |
| 376 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 8 | Qingyu Yuan | Mihnea Costachi | 1-0 | 81 | Open |
| 377 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 8 | Benny Aizenberg | Mihnea Costachi | 0-1 | 102 | Open |
| 378 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 7 | Mihnea Costachi | Nikita Matinian | 1-0 | 63 | Open |
| 379 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 7 | Mihnea Costachi | Amir Hosein Kashefi | 1-0 | 48 | Open |
| 380 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 6 | Yi Wei | Mihnea Costachi | 1-0 | 66 | Open |
| 381 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 6 | Gnel Melikyan | Mihnea Costachi | 1-0 | 70 | Open |
| 382 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 5 | Mihnea Costachi | Alexandros Papasimakopoulos | 0-1 | 76 | Open |
| 383 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 5 | Mihnea Costachi | Alon Mindlin | 1-0 | 35 | Open |
| 384 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 4 | Amilal Munkhdalai | Mihnea Costachi | 0-1 | 52 | Open |
| 385 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 4 | Mihnea Costachi | Olexandr Bortnyk | 0-1 | 50 | Open |
| 386 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 3 | Levente Papp | Mihnea Costachi | 0-1 | 33 | Open |
| 387 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 3 | Daniel Taboas Rodriguez | Mihnea Costachi | 1-0 | 60 | Open |
| 388 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 2 | Mihnea Costachi | Robert Safin | 1-0 | 43 | Open |
| 389 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 2 | Mihnea Costachi | Shaaketh Sivakumar | 1-0 | 30 | Open |
| 390 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 1 | Maj Zirkelbach | Mihnea Costachi | 0-1 | 59 | Open |
| 391 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 1 | Michal Kopczynski | Mihnea Costachi | 0-1 | 42 | Open |
| 392 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 11 | Mihnea Costachi | Nikolai Vlassov | 0-1 | 36 | Open |
| 393 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 11 | Mihnea Costachi | Raymond Kaufman | 0-1 | 22 | Open |
| 394 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 10 | Jose Remolar Gallen | Mihnea Costachi | 0-1 | 34 | Open |
| 395 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 10 | Jakob Postlmayer | Mihnea Costachi | 1-0 | 57 | Open |
| 396 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 9 | Mika Karttunen | Mihnea Costachi | 0-1 | 30 | Open |
| 397 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 9 | Mihnea Costachi | Tigran Nazaretyan | 1-0 | 17 | Open |
| 398 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 8 | Ruben Domingo Nunez | Mihnea Costachi | 1-0 | 40 | Open |
| 399 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 8 | Mihnea Costachi | Alua Nurman | 0-1 | 46 | Open |
| 400 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 7 | Jeffery Xiong | Mihnea Costachi | 1-0 | 41 | Open |
| 401 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 7 | Mihnea Costachi | Denis Makhnev | 0-1 | 52 | Open |
| 402 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 6 | Mihnea Costachi | Pavel Eljanov | 0-1 | 58 | Open |
| 403 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 6 | Radoslaw Dzierzak | Mihnea Costachi | 0-1 | 57 | Open |
| 404 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 5 | Mihnea Costachi | Tomasz Jaskolka | 1-0 | 51 | Open |
| 405 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 5 | Mihnea Costachi | Jorden Van Foreest | 1-0 | 74 | Open |
| 406 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 4 | Inigo Lopez Mulet | Mihnea Costachi | 0-1 | 40 | Open |
| 407 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 4 | Edward Lu | Mihnea Costachi | 0-1 | 55 | Open |
| 408 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 3 | Mathias Womacka | Mihnea Costachi | 1/2-1/2 | 91 | Open |
| 409 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 3 | Mikhael Garakov | Mihnea Costachi | 0-1 | 31 | Open |
| 410 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 2 | Mihnea Costachi | Yi Wei | 0-1 | 33 | Open |
| 411 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 2 | Mihnea Costachi | Alberto Guzman Moneo | 1-0 | 47 | Open |
| 412 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 1 | Kevin Davidson | Mihnea Costachi | 1-0 | 49 | Open |
| 413 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 1 | Mihnea Costachi | Nitai Leve | 1-0 | 24 | Open |
| 414 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 11 | Leonid Starozhilov | Mihnea Costachi | 0-1 | 46 | Open |
| 415 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 11 | Mihnea Costachi | Roman Gavrilin | 1-0 | 27 | Open |
| 416 | 2023-03-14 | Titled Tue 14th Mar Early | chess.com INT | 10 | Mihnea Costachi | Alejandro Domingo Nunez | 1-0 | 21 | Open |
| 417 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 10 | Khoi Pham | Mihnea Costachi | 1-0 | 63 | Open |
| 418 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 9 | Guillermo Vazquez | Mihnea Costachi | 1-0 | 69 | Open |
| 419 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 9 | Mihnea Costachi | Alexandros Papasimakopoulos | 0-1 | 62 | Open |
| 420 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 8 | Gianmarco Leiva | Mihnea Costachi | 0-1 | 64 | Open |
| 421 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 8 | Mihnea Costachi | Andrei Skvortsov | 1-0 | 67 | Open |
| 422 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 7 | Mihnea Costachi | Joshua Colas | 1/2-1/2 | 80 | Open |
| 423 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 7 | Mihnea Costachi | Erik Blomqvist | 1-0 | 34 | Open |
| 424 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 6 | Aleksandr Lenderman | Mihnea Costachi | 1-0 | 59 | Open |
| 425 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 6 | Sergey Kim | Mihnea Costachi | 1/2-1/2 | 57 | Open |
| 426 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 5 | Mihnea Costachi | Gnel Melikyan | 1-0 | 36 | Open |
| 427 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 5 | Mihnea Costachi | Sergey D. Rodchenkov | 1-0 | 28 | Open |
| 428 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 4 | Vladimir Kramnik | Mihnea Costachi | 1-0 | 34 | Open |
| 429 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 4 | Emil Risteski | Mihnea Costachi | 0-1 | 33 | Open |
| 430 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 3 | Mihnea Costachi | Yangyi Yu | 0-1 | 74 | Open |
| 431 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 3 | Mihnea Costachi | Nihal Sarin | 1/2-1/2 | 54 | Open |
| 432 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 2 | Jaan Ehlvest | Mihnea Costachi | 0-1 | 27 | Open |
| 433 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 2 | Mihnea Costachi | Jan Kokoszczynski | 1-0 | 54 | Open |
| 434 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 1 | Irina Petrova | Mihnea Costachi | 0-1 | 66 | Open |
| 435 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 1 | Mihnea Costachi | Dominik Marczuk | 1-0 | 55 | Open |
| 436 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 11 | Mihnea Costachi | Alex Krstulovic | 0-1 | 42 | Open |
| 437 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 11 | Mihnea Costachi | Alexey Averjanov | 1-0 | 83 | Open |
| 438 | 2023-03-07 | Titled Tue 7th Mar Late | chess.com INT | 10 | Vsevolod Rytenko | Mihnea Costachi | 1/2-1/2 | 65 | Open |
| 439 | 2023-03-07 | Titled Tue 7th Mar Early | chess.com INT | 10 | Alexander Reprintsev | Mihnea Costachi | 0-1 | 38 | Open |
| 440 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 9 | Mihnea Costachi | Leon Livaic | 0-1 | 58 | Open |
| 441 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 9 | Mihnea Costachi | Meri Arabidze | 1/2-1/2 | 65 | Open |
| 442 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 8 | B. Adhiban | Mihnea Costachi | 1-0 | 59 | Open |
| 443 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 8 | Daniel Dardha | Mihnea Costachi | 0-1 | 61 | Open |
| 444 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 7 | Mayank Chakraborty | Mihnea Costachi | 0-1 | 39 | Open |
| 445 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 7 | Kamil Dzida | Mihnea Costachi | 0-1 | 19 | Open |
| 446 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 6 | Mihnea Costachi | Bernardo Vainzoff Sztokbant | 1-0 | 34 | Open |
| 447 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 6 | Mihnea Costachi | Shamsiddin Vokhidov | 0-1 | 41 | Open |
| 448 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 5 | Alikhon Avazkhonov | Mihnea Costachi | 0-1 | 43 | Open |
| 449 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 5 | Mykola Bortnyk | Mihnea Costachi | 1-0 | 31 | Open |
| 450 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 4 | Vasif Durarbayli | Mihnea Costachi | 1/2-1/2 | 49 | Open |
| 451 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 4 | Mihnea Costachi | Ilja Derjabin | 1-0 | 57 | Open |
| 452 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 3 | Vahap Sanal | Mihnea Costachi | 1-0 | 45 | Open |
| 453 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 3 | Mihnea Costachi | Aung Thant Zin | 1-0 | 36 | Open |
| 454 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 2 | Daria Zaichenko | Mihnea Costachi | 0-1 | 28 | Open |
| 455 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 2 | Mihnea Costachi | Aleksa Micic | 1/2-1/2 | 127 | Open |
| 456 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 1 | Mihnea Costachi | Shane Melaugh | 1-0 | 25 | Open |
| 457 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 1 | Rafal Szyszylo | Mihnea Costachi | 0-1 | 37 | Open |
| 458 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 11 | Gary Leschinsky | Mihnea Costachi | 0-1 | 50 | Open |
| 459 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 11 | Benny Aizenberg | Mihnea Costachi | 0-1 | 32 | Open |
| 460 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 10 | Vitaly Teterev | Mihnea Costachi | 0-1 | 27 | Open |
| 461 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 10 | Mihnea Costachi | David L Haydon | 1-0 | 71 | Open |
| 462 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 9 | Mihnea Costachi | Viktor Shapiro | 0-1 | 88 | Open |
| 463 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 8 | Attila Turzo | Mihnea Costachi | 0-1 | 39 | Open |
| 464 | 2023-02-21 | Titled Tue 21st Feb Late | chess.com INT | 8 | Mihnea Costachi | Danila Bilan | 1-0 | 43 | Open |
| 465 | 2023-02-21 | Titled Tue 21st Feb Late | chess.com INT | 7 | David 1981 Martinez Martin | Mihnea Costachi | 1-0 | 51 | Open |
| 466 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 7 | Mihnea Costachi | Aziz Degenbaev | 0-1 | 28 | Open |
| 467 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 6 | David Arenas | Mihnea Costachi | 0-1 | 31 | Open |
| 468 | 2023-02-21 | Titled Tue 21st Feb Late | chess.com INT | 6 | Mihnea Costachi | Jose Carlos Ibarra Jerez | 0-1 | 73 | Open |
| 469 | 2023-02-21 | Titled Tue 21st Feb Late | chess.com INT | 5 | Vugar Rasulov | Mihnea Costachi | 0-1 | 83 | Open |
| 470 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 5 | Mihnea Costachi | Bardiya Daneshvar | 0-1 | 55 | Open |
| 471 | 2023-02-21 | Titled Tue 21st Feb Late | chess.com INT | 4 | Mihnea Costachi | Gabriel Gonzaga Garcia | 1-0 | 21 | Open |
| 472 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 4 | Jan Kokoszczynski | Mihnea Costachi | 0-1 | 57 | Open |
| 473 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 3 | Mihnea Costachi | Vladimir Fedoseev | 0-1 | 66 | Open |
| 474 | 2023-02-21 | Titled Tue 21st Feb Late | chess.com INT | 3 | Mihnea Costachi | Frederik Svane | 0-1 | 45 | Open |
| 475 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 2 | Frank Buchenau | Mihnea Costachi | 0-1 | 26 | Open |
| 476 | 2023-02-21 | Titled Tue 21st Feb Late | chess.com INT | 2 | Josep Romero Ruscalleda | Mihnea Costachi | 0-1 | 26 | Open |
| 477 | 2023-02-21 | Titled Tue 21st Feb Early | chess.com INT | 1 | Mihnea Costachi | Luis Enrique Valle Maytin | 1-0 | 36 | Open |
| 478 | 2023-02-21 | Titled Tue 21st Feb Late | chess.com INT | 1 | Mihnea Costachi | Alexandr Kostiukov | 1-0 | 38 | Open |
| 479 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 9 | Mihnea Costachi | Viktor Shapiro | 1-0 | 76 | Open |
| 480 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 8 | Denis Pavlov | Mihnea Costachi | 0-1 | 43 | Open |
| 481 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 8 | Mihnea Costachi | Arystanbek Urazayev | 0-1 | 46 | Open |
| 482 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 7 | Daniel Eduardo Lopez Idarraga | Mihnea Costachi | 0-1 | 29 | Open |
| 483 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 7 | Mihnea Costachi | Juan Sebastian Melian | 0-1 | 69 | Open |
| 484 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 6 | Evgenij Novikov | Mihnea Costachi | 0-1 | 26 | Open |
| 485 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 6 | Jaka Brilej | Mihnea Costachi | 0-1 | 16 | Open |
| 486 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 5 | Mihnea Costachi | Kerem Tinmaz | 0-1 | 62 | Open |
| 487 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 5 | Mihnea Costachi | Vladimir Fedoseev | 0-1 | 25 | Open |
| 488 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 4 | Daniel Girsh | Mihnea Costachi | 0-1 | 37 | Open |
| 489 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 4 | Mihnea Costachi | Kacper Zochowski | 1-0 | 55 | Open |
| 490 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 3 | Lovro Novosel | Mihnea Costachi | 0-1 | 28 | Open |
| 491 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 3 | Mihnea Costachi | Vahap Sanal | 0-1 | 74 | Open |
| 492 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 2 | Mihnea Costachi | Emmanuel Jimenez Garcia | 0-1 | 47 | Open |
| 493 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 2 | Mihnea Costachi | Justin Sarkar | 1-0 | 28 | Open |
| 494 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 1 | Evgeny V. Melikhov | Mihnea Costachi | 0-1 | 25 | Open |
| 495 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 1 | Alikhon Avazkhonov | Mihnea Costachi | 0-1 | 61 | Open |
| 496 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 11 | Mamikon Gharibyan | Mihnea Costachi | 1-0 | 84 | Open |
| 497 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 10 | Mihnea Costachi | Denis Makhnev | 1-0 | 54 | Open |
| 498 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 9 | Mihnea Costachi | Yuliia Osmak | 1-0 | 13 | Open |
| 499 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 8 | Harsha Bharathakoti | Mihnea Costachi | 1-0 | 45 | Open |
| 500 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 7 | Mihnea Costachi | Tomasz Jaskolka | 1-0 | 43 | Open |
| 501 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 6 | Mihnea Costachi | Koen Leenhouts | 1-0 | 57 | Open |
| 502 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 5 | Lovro Novosel | Mihnea Costachi | 0-1 | 37 | Open |
| 503 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 4 | Mihnea Costachi | Sergei Ljukin | 0-1 | 61 | Open |
| 504 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 3 | Aleksandar Indjic | Mihnea Costachi | 1-0 | 41 | Open |
| 505 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 2 | Mihnea Costachi | Matfei Nikologorsky | 1-0 | 19 | Open |
| 506 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 1 | Asa Hoffmann | Mihnea Costachi | 0-1 | 49 | Open |
| 507 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 11 | Adam Kozak | Mihnea Costachi | 0-1 | 49 | Open |
| 508 | 2023-02-07 | Titled Tue 7th Feb Early | chess.com INT | 10 | Mihnea Costachi | Varvara Poliakova | 1-0 | 26 | Open |
| 509 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 9 | Nebojsa M Ristic | Mihnea Costachi | 0-1 | 36 | Open |
| 510 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 9 | Arystanbek Urazayev | Mihnea Costachi | 1-0 | 91 | Open |
| 511 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 8 | Jose Gabriel Cardoso Cardoso | Mihnea Costachi | 0-1 | 111 | Open |
| 512 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 8 | Mihnea Costachi | Alexandr Predke | 0-1 | 38 | Open |
| 513 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 7 | Mihnea Costachi | Tymur Keleberda | 1-0 | 55 | Open |
| 514 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 7 | Mihnea Costachi | Ashot Nadanian | 1/2-1/2 | 62 | Open |
| 515 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 6 | Ward Al-Tarboush | Mihnea Costachi | 0-1 | 63 | Open |
| 516 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 6 | William Ferreira Da Cruz | Mihnea Costachi | 1/2-1/2 | 81 | Open |
| 517 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 5 | Renato Terry | Mihnea Costachi | 1-0 | 59 | Open |
| 518 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 5 | Mihnea Costachi | Diego Carbone | 1-0 | 56 | Open |
| 519 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 4 | Mihnea Costachi | Anatoly Donskov | 0-1 | 22 | Open |
| 520 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 4 | Mihnea Costachi | Alexander Bagrationi | 1-0 | 37 | Open |
| 521 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 3 | Mihnea Costachi | Vladimir Bochnicka | 1-0 | 53 | Open |
| 522 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 2 | Mihnea Costachi | Guillermo Baches Garcia | 1-0 | 29 | Open |
| 523 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 2 | Mihnea Costachi | Pawel Dudzinski | 1-0 | 42 | Open |
| 524 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 1 | Michael Bon | Mihnea Costachi | 1-0 | 48 | Open |
| 525 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 1 | Rasul Ibrahimov | Mihnea Costachi | 0-1 | 40 | Open |
| 526 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 11 | Mihnea Costachi | Azer Mirzoev | 0-1 | 52 | Open |
| 527 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 11 | Mihnea Costachi | Kamil Grycel | 1-0 | 37 | Open |
| 528 | 2023-01-31 | Titled Tue 31st Jan Early | chess.com INT | 10 | Md Imran | Mihnea Costachi | 1/2-1/2 | 99 | Open |
| 529 | 2023-01-31 | Titled Tue 31st Jan Late | chess.com INT | 10 | Mihnea Costachi | Michal Tworuszka | 1/2-1/2 | 44 | Open |
| 530 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 8 | Eric Hansen | Mihnea Costachi | 1-0 | 62 | Open |
| 531 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 7 | Elham Amar | Mihnea Costachi | 1-0 | 43 | Open |
| 532 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 6 | Mihnea Costachi | Luca Jr Moroni | 1-0 | 50 | Open |
| 533 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 5 | Mihnea Costachi | Aleksandr Shimanov | 1-0 | 76 | Open |
| 534 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 4 | Alex Golding | Mihnea Costachi | 0-1 | 28 | Open |
| 535 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 3 | Mihnea Costachi | Gata Kamsky | 0-1 | 34 | Open |
| 536 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 2 | Mihnea Costachi | Janusz Koscielski | 1-0 | 38 | Open |
| 537 | 2023-01-24 | Titled Tue 24th Jan Late | chess.com INT | 1 | Christian Silvestre | Mihnea Costachi | 0-1 | 28 | Open |
| 538 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 9 | Stanoje Jovic | Mihnea Costachi | 0-1 | 45 | Open |
| 539 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 8 | Mihnea Costachi | Luca Jr Moroni | 0-1 | 100 | Open |
| 540 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 7 | Amin Kabilov | Mihnea Costachi | 0-1 | 45 | Open |
| 541 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 6 | Yi Xu | Mihnea Costachi | 1/2-1/2 | 67 | Open |
| 542 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 5 | Mihnea Costachi | Md Imran | 1-0 | 59 | Open |
| 543 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 4 | Baadur Jobava | Mihnea Costachi | 1-0 | 64 | Open |
| 544 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 3 | Mihnea Costachi | Dilshad Mohammed | 1-0 | 39 | Open |
| 545 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 2 | Logman Guliev | Mihnea Costachi | 1/2-1/2 | 49 | Open |
| 546 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 1 | Mihnea Costachi | Joachim Mouhamad | 1-0 | 26 | Open |
| 547 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 11 | Mihnea Costachi | Juan Sebastian Melian | 0-1 | 16 | Open |
| 548 | 2023-01-17 | Titled Tue 17th Jan Early | chess.com INT | 10 | Aleksandar Indjic | Mihnea Costachi | 1-0 | 73 | Open |
| 549 | 2023-01-10 | Titled Tue 10th Jan Late | chess.com INT | 5 | Maxime Vachier-Lagrave | Mihnea Costachi | 1-0 | 30 | Open |
| 550 | 2023-01-10 | Titled Tue 10th Jan Late | chess.com INT | 4 | Mihnea Costachi | Gulrukhbegim Tokhirjonova | 1-0 | 51 | Open |
| 551 | 2023-01-10 | Titled Tue 10th Jan Late | chess.com INT | 3 | Jose Eduardo Martinez Alcantara | Mihnea Costachi | 1-0 | 34 | Open |
| 552 | 2023-01-10 | Titled Tue 10th Jan Late | chess.com INT | 2 | Mihnea Costachi | Benedikt Huber | 1-0 | 16 | Open |
| 553 | 2023-01-10 | Titled Tue 10th Jan Late | chess.com INT | 1 | Evgeny V. Melikhov | Mihnea Costachi | 0-1 | 57 | Open |
| 554 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 9 | Mihnea Costachi | Denis Lazavik | 0-1 | 79 | Open |
| 555 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 8 | Gianmarco Leiva | Mihnea Costachi | 0-1 | 46 | Open |
| 556 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 7 | Mihnea Costachi | Zaur Bayramov | 1-0 | 36 | Open |
| 557 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 6 | Sofia Blokhin | Mihnea Costachi | 0-1 | 27 | Open |
| 558 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 5 | Joa Max Bornholdt | Mihnea Costachi | 1/2-1/2 | 76 | Open |
| 559 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 4 | Mihnea Costachi | Ramil Sadykov | 0-1 | 69 | Open |
| 560 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 3 | Ian Nepomniachtchi | Mihnea Costachi | 1-0 | 45 | Open |
| 561 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 2 | Mihnea Costachi | Jakub Seemann | 1-0 | 99 | Open |
| 562 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 1 | Artem Legenia | Mihnea Costachi | 0-1 | 28 | Open |
| 563 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 11 | Mihnea Costachi | Maksym Goroshkov | 1-0 | 38 | Open |
| 564 | 2023-01-03 | Titled Tue 3rd Jan Early | chess.com INT | 10 | Dennis Wagner | Mihnea Costachi | 0-1 | 66 | Open |
| 565 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 9 | Mihnea Costachi | Dmitry Goltsev | 1-0 | 107 | Open |
| 566 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 8 | Abilmansur Abdilkhair | Mihnea Costachi | 0-1 | 57 | Open |
| 567 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 7 | Mihnea Costachi | Theodore Slade | 1-0 | 21 | Open |
| 568 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 6 | Caio Medeiros Poeta | Mihnea Costachi | 0-1 | 71 | Open |
| 569 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 5 | Phileas Mathieu | Mihnea Costachi | 1-0 | 32 | Open |
| 570 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 4 | Mihnea Costachi | Ranesh Ratnesan | 1-0 | 26 | Open |
| 571 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 3 | Shreyas Royal | Mihnea Costachi | 1-0 | 24 | Open |
| 572 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 2 | Mihnea Costachi | Ayushh Ravikumar | 1-0 | 71 | Open |
| 573 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 1 | Denis Pavlov | Mihnea Costachi | 1/2-1/2 | 59 | Open |
| 574 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 11 | Daniel Garcia Ramos | Mihnea Costachi | 0-1 | 71 | Open |
| 575 | 2022-12-27 | Titled Tue 27th Dec Early | chess.com INT | 10 | Mihnea Costachi | Grigoriy Oparin | 0-1 | 50 | Open |
| 576 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 9 | Mihnea Costachi | Dmitry Goltsev | 1-0 | 36 | Open |
| 577 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 8 | V Pranav | Mihnea Costachi | 1-0 | 29 | Open |
| 578 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 7 | Mihnea Costachi | Alexey Sarana | 1-0 | 31 | Open |
| 579 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 6 | Mihnea Costachi | Bao Nghia Dong | 1-0 | 45 | Open |
| 580 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 5 | Jakob Leon Pajeken | Mihnea Costachi | 0-1 | 28 | Open |
| 581 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 4 | Mihnea Costachi | William Hernandez Gonzalez | 0-1 | 41 | Open |
| 582 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 3 | Yichen Han | Mihnea Costachi | 1/2-1/2 | 40 | Open |
| 583 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 2 | Mihnea Costachi | Ivan Aldokhin | 1-0 | 83 | Open |
| 584 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 1 | Dmitry Gurevich | Mihnea Costachi | 0-1 | 37 | Open |
| 585 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 11 | Mihnea Costachi | Harshavardhan G B | 1/2-1/2 | 53 | Open |
| 586 | 2022-12-20 | Titled Tue 20th Dec Early | chess.com INT | 10 | Denis Lazavik | Mihnea Costachi | 1-0 | 50 | Open |
| 587 | 2022-12-18 | European Rapid 2022 | Katowice POL | 9.36 | Przemyslaw Piotrowski | Mihnea Costachi | 0-1 | 44 | Open |
| 588 | 2022-12-18 | European Rapid 2022 | Katowice POL | 8.1 | Mihnea Costachi | Sergei Azarov | 0-1 | 72 | Open |
| 589 | 2022-12-18 | European Rapid 2022 | Katowice POL | 7.28 | Anna Kubicka | Mihnea Costachi | 0-1 | 39 | Open |
| 590 | 2022-12-18 | European Rapid 2022 | Katowice POL | 11.27 | Jolanta Zawadzka | Mihnea Costachi | 1/2-1/2 | 57 | Open |
| 591 | 2022-12-18 | European Rapid 2022 | Katowice POL | 10.1 | Mihnea Costachi | Rasmus Svane | 1/2-1/2 | 44 | Open |
| 592 | 2022-12-17 | European Rapid 2022 | Katowice POL | 6.1 | Mihnea Costachi | Dimitrios Mastrovasilis | 1/2-1/2 | 14 | Open |
| 593 | 2022-12-17 | European Rapid 2022 | Katowice POL | 5.32 | Christian Maier | Mihnea Costachi | 0-1 | 36 | Open |
| 594 | 2022-12-17 | European Rapid 2022 | Katowice POL | 4.51 | Mihnea Costachi | Margareth Olde | 1-0 | 67 | Open |
| 595 | 2022-12-17 | European Rapid 2022 | Katowice POL | 2.52 | Mihnea Costachi | Kamil Kaliszuk | 1/2-1/2 | 105 | Open |
| 596 | 2022-12-17 | European Rapid 2022 | Katowice POL | 1.55 | Anna Slusarczyk | Mihnea Costachi | 0-1 | 33 | Open |
| 597 | 2022-12-16 | European Blitz 2022 | Katowice POL | 9.44 | Mihnea Costachi | Alexander Sotsky | 1-0 | 48 | Open |
| 598 | 2022-12-16 | European Blitz 2022 | Katowice POL | 8.1 | Mihnea Costachi | Kacper Piorun | 0-1 | 45 | Open |
| 599 | 2022-12-16 | European Blitz 2022 | Katowice POL | 7.1 | Kacper Piorun | Mihnea Costachi | 1-0 | 59 | Open |
| 600 | 2022-12-16 | European Blitz 2022 | Katowice POL | 6.42 | Stanislav Kovalevsky | Mihnea Costachi | 0-1 | 35 | Open |
| 601 | 2022-12-16 | European Blitz 2022 | Katowice POL | 5.42 | Mihnea Costachi | Stanislav Kovalevsky | 1-0 | 38 | Open |
| 602 | 2022-12-16 | European Blitz 2022 | Katowice POL | 4.51 | Mihnea Costachi | Marianna Grineva | 1-0 | 39 | Open |
| 603 | 2022-12-16 | European Blitz 2022 | Katowice POL | 3.51 | Marianna Grineva | Mihnea Costachi | 0-1 | 59 | Open |
| 604 | 2022-12-16 | European Blitz 2022 | Katowice POL | 22.13 | Daniil Yuffa | Mihnea Costachi | 0-1 | 78 | Open |
| 605 | 2022-12-16 | European Blitz 2022 | Katowice POL | 21.13 | Mihnea Costachi | Daniil Yuffa | 1-0 | 58 | Open |
| 606 | 2022-12-16 | European Blitz 2022 | Katowice POL | 20.32 | Mihnea Costachi | Oleksii Karvatskyi | 1-0 | 26 | Open |
| 607 | 2022-12-16 | European Blitz 2022 | Katowice POL | 2.56 | Franciszek Kozlowski | Mihnea Costachi | 0-1 | 30 | Open |
| 608 | 2022-12-16 | European Blitz 2022 | Katowice POL | 19.32 | Oleksii Karvatskyi | Mihnea Costachi | 0-1 | 43 | Open |
| 609 | 2022-12-16 | European Blitz 2022 | Katowice POL | 18.37 | Sinisa Drazic | Mihnea Costachi | 0-1 | 28 | Open |
| 610 | 2022-12-16 | European Blitz 2022 | Katowice POL | 17.37 | Mihnea Costachi | Sinisa Drazic | 1/2-1/2 | 81 | Open |
| 611 | 2022-12-16 | European Blitz 2022 | Katowice POL | 16.19 | Mihnea Costachi | Mykhaylo Oleksiyenko | 1/2-1/2 | 56 | Open |
| 612 | 2022-12-16 | European Blitz 2022 | Katowice POL | 15.19 | Mykhaylo Oleksiyenko | Mihnea Costachi | 1-0 | 31 | Open |
| 613 | 2022-12-16 | European Blitz 2022 | Katowice POL | 14.41 | Klaudia Kulon | Mihnea Costachi | 0-1 | 46 | Open |
| 614 | 2022-12-16 | European Blitz 2022 | Katowice POL | 13.41 | Mihnea Costachi | Klaudia Kulon | 1-0 | 55 | Open |
| 615 | 2022-12-16 | European Blitz 2022 | Katowice POL | 12.24 | Mihnea Costachi | Leon Livaic | 0-1 | 44 | Open |
| 616 | 2022-12-16 | European Blitz 2022 | Katowice POL | 11.24 | Leon Livaic | Mihnea Costachi | 1/2-1/2 | 43 | Open |
| 617 | 2022-12-16 | European Blitz 2022 | Katowice POL | 10.44 | Alexander Sotsky | Mihnea Costachi | 0-1 | 28 | Open |
| 618 | 2022-12-16 | European Blitz 2022 | Katowice POL | 1.56 | Mihnea Costachi | Franciszek Kozlowski | 1-0 | 55 | Open |
| 619 | 2022-12-06 | Final ROM GP KO | Alba Iulia ROU | 3.3 | David Gavrilescu | Mihnea Costachi | 1-0 | 40 | Open |
| 620 | 2022-12-06 | Final ROM GP KO | Alba Iulia ROU | 3.2 | David Gavrilescu | Mihnea Costachi | 1/2-1/2 | 128 | Open |
| 621 | 2022-12-06 | Final ROM GP KO | Alba Iulia ROU | 3.1 | Mihnea Costachi | David Gavrilescu | 1/2-1/2 | 32 | Open |
| 622 | 2022-12-06 | Final ROM GP KO | Alba Iulia ROU | 2.2 | Bogdan-Daniel Deac | Mihnea Costachi | 1-0 | 47 | Open |
| 623 | 2022-12-06 | Final ROM GP KO | Alba Iulia ROU | 2.1 | Mihnea Costachi | Bogdan-Daniel Deac | 0-1 | 43 | Open |
| 624 | 2022-12-06 | Final ROM GP KO | Alba Iulia ROU | 1.2 | Irina Bulmaga | Mihnea Costachi | 0-1 | 53 | Open |
| 625 | 2022-12-06 | Final ROM GP KO | Alba Iulia ROU | 1.1 | Mihnea Costachi | Irina Bulmaga | 1/2-1/2 | 28 | Open |
| 626 | 2022-12-05 | Final ROU GP GpD | Alba Iulia ROU | 6.1 | Constantin Lupulescu | Mihnea Costachi | 1/2-1/2 | 11 | Open |
| 627 | 2022-12-05 | Final ROU GP GpD | Alba Iulia ROU | 5.2 | Mihnea Costachi | Alexandru-Vasile David | 1/2-1/2 | 20 | Open |
| 628 | 2022-12-05 | Final ROU GP GpD | Alba Iulia ROU | 4.2 | Ioan Cosma | Mihnea Costachi | 1/2-1/2 | 34 | Open |
| 629 | 2022-12-05 | Final ROU GP GpD | Alba Iulia ROU | 3.2 | Alexandru-Vasile David | Mihnea Costachi | 1/2-1/2 | 27 | Open |
| 630 | 2022-12-05 | Final ROU GP GpD | Alba Iulia ROU | 2.1 | Mihnea Costachi | Constantin Lupulescu | 1/2-1/2 | 27 | Open |
| 631 | 2022-12-05 | Final ROM GP GpD TB | Alba Iulia ROU | 1 | Alexandru-Vasile David | Mihnea Costachi | 0-1 | 37 | Open |
| 632 | 2022-12-05 | Final ROU GP GpD | Alba Iulia ROU | 1.2 | Mihnea Costachi | Ioan Cosma | 1/2-1/2 | 36 | Open |
| 633 | 2022-12-04 | TCh-ROU Blitz 2022 | Sebes ROU | 8.5 | Ruslan Soltanici | Mihnea Costachi | 1/2-1/2 | 27 | Open |
| 634 | 2022-12-04 | TCh-ROU Blitz 2022 | Sebes ROU | 7.17 | Mihnea Costachi | Romulus-Cristian Stefan | 1-0 | 43 | Open |
| 635 | 2022-12-04 | TCh-ROU Blitz 2022 | Sebes ROU | 6.13 | Teodor Anton | Mihnea Costachi | 0-1 | 42 | Open |
| 636 | 2022-12-04 | TCh-ROU Blitz 2022 | Sebes ROU | 5.5 | Lucian-Costin Miron | Mihnea Costachi | 1/2-1/2 | 20 | Open |
| 637 | 2022-12-04 | TCh-ROU Blitz 2022 | Sebes ROU | 4.5 | Mihnea Costachi | George-Catalin Ardelean | 1/2-1/2 | 32 | Open |
| 638 | 2022-12-04 | TCh-ROU Blitz 2022 | Sebes ROU | 3.17 | Mihnea Costachi | Robin-Alexandru Dragomirescu | 1-0 | 37 | Open |
| 639 | 2022-12-04 | TCh-ROU Blitz 2022 | Sebes ROU | 2.1 | Constantin Lupulescu | Mihnea Costachi | 0-1 | 50 | Open |
| 640 | 2022-12-04 | TCh-ROU Blitz 2022 | Sebes ROU | 1.21 | Mihnea Costachi | Toma Miron | 1-0 | 17 | Open |
| 641 | 2022-12-03 | TCh-ROU Rapid 2022 | Sebes ROU | 8.13 | Gergely-Andras-Gyula Szabo | Mihnea Costachi | 1/2-1/2 | 4 | Open |
| 642 | 2022-12-03 | TCh-ROU Rapid 2022 | Sebes ROU | 7.13 | Ruslan Soltanici | Mihnea Costachi | 1/2-1/2 | 16 | Open |
| 643 | 2022-12-03 | TCh-ROU Rapid 2022 | Sebes ROU | 6.1 | Mihnea Costachi | Constantin Lupulescu | 1/2-1/2 | 70 | Open |
| 644 | 2022-12-03 | TCh-ROU Rapid 2022 | Sebes ROU | 5.9 | Robert-Paul Nastase | Mihnea Costachi | 0-1 | 27 | Open |
| 645 | 2022-12-03 | TCh-ROU Rapid 2022 | Sebes ROU | 4.9 | Mihnea Costachi | Robin-Alexandru Dragomirescu | 1-0 | 38 | Open |
| 646 | 2022-12-03 | TCh-ROU Rapid 2022 | Sebes ROU | 3.5 | Alexandru-Vasile David | Mihnea Costachi | 1/2-1/2 | 24 | Open |
| 647 | 2022-12-03 | TCh-ROU Rapid 2022 | Sebes ROU | 2.17 | Mihnea Costachi | Romulus-Cristian Stefan | 1-0 | 27 | Open |
| 648 | 2022-12-03 | TCh-ROU Rapid 2022 | Sebes ROU | 1.17 | Razvan Teodorescu | Mihnea Costachi | 0-1 | 27 | Open |
| 649 | 2022-12-02 | Romanian Rapid Open 2022 | Sebes ROU | 8 | Mihnea Costachi | Romulus-Cristian Stefan | 1-0 | 34 | Open |
| 650 | 2022-12-02 | Romanian Rapid Open 2022 | Sebes ROU | 7 | Alexandru Manea | Mihnea Costachi | 1/2-1/2 | 19 | Open |
| 651 | 2022-12-02 | Romanian Rapid Open 2022 | Sebes ROU | 6 | Mihnea Costachi | Lehel Vrencian | 1-0 | 24 | Open |
| 652 | 2022-12-02 | Romanian Rapid Open 2022 | Sebes ROU | 5 | Robert-Paul Nastase | Mihnea Costachi | 1/2-1/2 | 84 | Open |
| 653 | 2022-12-02 | Romanian Rapid Open 2022 | Sebes ROU | 4 | Mihnea Costachi | Ioan Cosma | 1/2-1/2 | 53 | Open |
| 654 | 2022-12-02 | Romanian Rapid Open 2022 | Sebes ROU | 3 | Andrei Filip | Mihnea Costachi | 1/2-1/2 | 33 | Open |
| 655 | 2022-12-02 | Romanian Rapid Open 2022 | Sebes ROU | 2 | Mihnea Costachi | Cristian-Daniel Oltean | 1-0 | 75 | Open |
| 656 | 2022-12-02 | Romanian Rapid Open 2022 | Sebes ROU | 1 | Ioan-Radu Dima | Mihnea Costachi | 0-1 | 27 | Open |
| 657 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 9 | Erik Ronka | Mihnea Costachi | 0-1 | 44 | Open |
| 658 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 8 | Mihnea Costachi | Benjamin Bok | 0-1 | 54 | Open |
| 659 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 7 | Mihnea Costachi | Goran Vajic | 1-0 | 55 | Open |
| 660 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 6 | Bernardo Vainzoff Sztokbant | Mihnea Costachi | 0-1 | 47 | Open |
| 661 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 5 | Mihnea Costachi | Aarav Dengla | 1-0 | 69 | Open |
| 662 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 4 | Roberto Mogranzini | Mihnea Costachi | 1-0 | 79 | Open |
| 663 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 3 | Mihnea Costachi | Kukreja Sankalp | 1-0 | 57 | Open |
| 664 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 2 | Caleb Levi Levitan | Mihnea Costachi | 0-1 | 57 | Open |
| 665 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 1 | Mihnea Costachi | Evan S Rosenberg | 0-1 | 50 | Open |
| 666 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 11 | Mihnea Costachi | Alexey Sarana | 0-1 | 84 | Open |
| 667 | 2022-11-29 | Titled Tue 29th Nov Early | chess.com INT | 10 | Mihnea Costachi | Velimir Ivic | 1-0 | 40 | Open |
| 668 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 9 | Mohamed Ezat | Mihnea Costachi | 0-1 | 47 | Open |
| 669 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 8 | Mihnea Costachi | Marcin Molenda | 0-1 | 39 | Open |
| 670 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 7 | Yair Parkhov | Mihnea Costachi | 1-0 | 37 | Open |
| 671 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 6 | Mihnea Costachi | Cem Kaan Gokerkan | 0-1 | 66 | Open |
| 672 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 5 | Illya Nyzhnyk | Mihnea Costachi | 1-0 | 67 | Open |
| 673 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 4 | Mihnea Costachi | Renato Terry | 1-0 | 23 | Open |
| 674 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 3 | Mihnea Costachi | Vladimir Bochnicka | 1-0 | 21 | Open |
| 675 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 2 | Aydin Suleymanli | Mihnea Costachi | 1-0 | 25 | Open |
| 676 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 1 | Lakshmi C | Mihnea Costachi | 0-1 | 47 | Open |
| 677 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 14 | Ivan Zemlyanskii | Mihnea Costachi | 0-1 | 38 | Open |
| 678 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 13 | Sreyas Payyappat | Mihnea Costachi | 0-1 | 63 | Open |
| 679 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 12 | Mihnea Costachi | Dawid Janaszak | 1-0 | 66 | Open |
| 680 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 11 | Maksim Omariev | Mihnea Costachi | 1-0 | 20 | Open |
| 681 | 2022-11-12 | chess.com SpeedChess Q2Sw | chess.com INT | 10 | Mihnea Costachi | Pawel Kukula | 1-0 | 105 | Open |
| 682 | 2022-11-06 | GP Stage 5 Braila 2022 | Braila ROU | 9.2 | Mihnea Costachi | Nadya Toncheva | 1-0 | 124 | Open |
| 683 | 2022-11-06 | GP Stage 5 Braila 2022 | Braila ROU | 8.2 | Evgeniya Doluhanova | Mihnea Costachi | 1/2-1/2 | 49 | Open |
| 684 | 2022-11-06 | GP Stage 5 Braila 2022 | Braila ROU | 7.24 | Mihnea Costachi | Marina Makropoulou | 1-0 | 29 | Open |
| 685 | 2022-11-06 | GP Stage 5 Braila 2022 | Braila ROU | 6.9 | David Navara | Mihnea Costachi | 1-0 | 35 | Open |
| 686 | 2022-11-06 | GP Stage 5 Braila 2022 | Braila ROU | 5.24 | Mihnea Costachi | Elena-Luminita Cosma | 1-0 | 72 | Open |
| 687 | 2022-11-06 | GP Stage 5 Braila 2022 | Braila ROU | 10.1 | Paulius Pultinevicius | Mihnea Costachi | 1/2-1/2 | 49 | Open |
| 688 | 2022-11-05 | GP Stage 5 Braila 2022 | Braila ROU | 4.12 | Athanasios Mastrovasilis | Mihnea Costachi | 1-0 | 54 | Open |
| 689 | 2022-11-05 | GP Stage 5 Braila 2022 | Braila ROU | 3.9 | Mihnea Costachi | Vitaliy Bernadskiy | 1/2-1/2 | 34 | Open |
| 690 | 2022-11-05 | GP Stage 5 Braila 2022 | Braila ROU | 2.29 | Iosif Ciocani | Mihnea Costachi | 0-1 | 41 | Open |
| 691 | 2022-11-05 | GP Stage 5 Braila 2022 | Braila ROU | 1.31 | Mihnea Costachi | Iustin Toma | 1-0 | 31 | Open |
| 692 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 9 | Stefan Mladenovic | Mihnea Costachi | 0-1 | 54 | Open |
| 693 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 8 | Mihnea Costachi | Fyodor Myshakov | 1-0 | 40 | Open |
| 694 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 7 | Gulrukhbegim Tokhirjonova | Mihnea Costachi | 1-0 | 50 | Open |
| 695 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 6 | Mihnea Costachi | Jaloliddin Ilkhomi | 1-0 | 47 | Open |
| 696 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 5 | Mihnea Costachi | Konstantin L. Kodinets | 0-1 | 73 | Open |
| 697 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 4 | Trisha Kanyamarala | Mihnea Costachi | 0-1 | 39 | Open |
| 698 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 3 | Mihnea Costachi | Rosh Jain | 1-0 | 51 | Open |
| 699 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 2 | Daria Yurasova | Mihnea Costachi | 1/2-1/2 | 102 | Open |
| 700 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 1 | Mihnea Costachi | Jennifer Perez Rodriguez | 0-1 | 33 | Open |
| 701 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 11 | Ekaterina Goltseva | Mihnea Costachi | 0-1 | 50 | Open |
| 702 | 2022-11-01 | Titled Tue 1st Nov Early | chess.com INT | 10 | Mihnea Costachi | Isaak Parpiev | 0-1 | 44 | Open |
| 703 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 9 | Mihnea Costachi | Tymon Czernek | 1-0 | 55 | Open |
| 704 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 8 | Daniil Manelyuk | Mihnea Costachi | 0-1 | 36 | Open |
| 705 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 7 | Mihnea Costachi | Simon Lamaze | 0-1 | 37 | Open |
| 706 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 6 | Mohamed Ezat | Mihnea Costachi | 0-1 | 28 | Open |
| 707 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 5 | Mihnea Costachi | Kirill Kuderinov | 0-1 | 61 | Open |
| 708 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 4 | Mihnea Costachi | Roman Dehtiarov | 1-0 | 71 | Open |
| 709 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 3 | Dashgyn Ibadov | Mihnea Costachi | 0-1 | 50 | Open |
| 710 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 2 | Mihnea Costachi | Ruslan Kashtanov | 1-0 | 32 | Open |
| 711 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 1 | Lukas Winterberg | Mihnea Costachi | 1-0 | 47 | Open |
| 712 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 11 | Mihnea Costachi | Vsevolod Ovchinnikov | 0-1 | 101 | Open |
| 713 | 2022-10-25 | Titled Tue 25th Oct Early | chess.com INT | 10 | Andrii Vachylia | Mihnea Costachi | 1-0 | 75 | Open |
| 714 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 9 | Borgaonkar Akshay | Mihnea Costachi | 0-1 | 24 | Open |
| 715 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 8 | Lukas Winterberg | Mihnea Costachi | 1-0 | 67 | Open |
| 716 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 7 | Mihnea Costachi | Jorden Van Foreest | 1/2-1/2 | 58 | Open |
| 717 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 6 | Mihnea Costachi | Martin Horak | 1-0 | 51 | Open |
| 718 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 5 | Alexander Donchenko | Mihnea Costachi | 1-0 | 44 | Open |
| 719 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 4 | Mihnea Costachi | Tobias Sebastian Moreno Perez | 1-0 | 44 | Open |
| 720 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 3 | Niranjan Navalgund | Mihnea Costachi | 0-1 | 37 | Open |
| 721 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 2 | Mihnea Costachi | Michael Buscar | 1-0 | 44 | Open |
| 722 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 1 | Daniel Titichoca Daza | Mihnea Costachi | 1-0 | 29 | Open |
| 723 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 11 | Mihnea Costachi | Aleksandar Indjic | 0-1 | 48 | Open |
| 724 | 2022-10-11 | Titled Tue 11th Oct Early | chess.com INT | 10 | Mihnea Costachi | Artur Gabrielian | 1-0 | 36 | Open |
| 725 | 2022-09-29 | TCh-ROU Superliga 2022 | Oradea ROU | 9.4 | Mihnea Costachi | Alin-Mile Berescu | 1-0 | 30 | Open |
| 726 | 2022-09-28 | TCh-ROU Superliga 2022 | Oradea ROU | 8.3 | Dragos-Andrei Antonica | Mihnea Costachi | 1/2-1/2 | 24 | Open |
| 727 | 2022-09-27 | TCh-ROU Superliga 2022 | Oradea ROU | 7.3 | Mihnea Costachi | George Stoleriu | 1/2-1/2 | 23 | Open |
| 728 | 2022-09-26 | TCh-ROU Superliga 2022 | Oradea ROU | 6.4 | Robert-Daniel Pisu | Mihnea Costachi | 1/2-1/2 | 42 | Open |
| 729 | 2022-09-25 | TCh-ROU Superliga 2022 | Oradea ROU | 5.2 | Mihnea Costachi | Iulian Barzanu | 1-0 | 29 | Open |
| 730 | 2022-09-24 | TCh-ROU Superliga 2022 | Oradea ROU | 4.5 | Hunor-Zoltan Antal | Mihnea Costachi | 0-1 | 45 | Open |
| 731 | 2022-09-22 | TCh-ROU Superliga 2022 | Oradea ROU | 2.5 | Tudor-Alexandru Ursente | Mihnea Costachi | 0-1 | 52 | Open |
| 732 | 2022-09-21 | TCh-ROU Superliga 2022 | Oradea ROU | 1.2 | Iustin Ciorgovean | Mihnea Costachi | 0-1 | 49 | Open |
| 733 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 9 | Mihnea Costachi | V Pranav | 0-1 | 100 | Open |
| 734 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 8 | Mihnea Costachi | Nikolaos Aggelis | 1-0 | 34 | Open |
| 735 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 7 | Linden Lee | Mihnea Costachi | 0-1 | 31 | Open |
| 736 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 6 | Mihnea Costachi | Joaquin Fiorito | 0-1 | 45 | Open |
| 737 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 5 | Mihnea Costachi | Garv Gaur | 1-0 | 47 | Open |
| 738 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 4 | Roy Vagman | Mihnea Costachi | 0-1 | 72 | Open |
| 739 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 3 | Prraneeth Vuppala | Mihnea Costachi | 1-0 | 33 | Open |
| 740 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 2 | Mihnea Costachi | Artem Gulevich | 1-0 | 28 | Open |
| 741 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 1 | Tomasz Jaskolka | Mihnea Costachi | 1/2-1/2 | 87 | Open |
| 742 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 11 | Mihnea Costachi | Fernando Lopez Gracia | 1-0 | 43 | Open |
| 743 | 2022-09-20 | Titled Tue 20th Sep Early | chess.com INT | 10 | Patrick Emilio Aizpurua | Mihnea Costachi | 1-0 | 48 | Open |
| 744 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 9 | Danila Bilan | Mihnea Costachi | 1-0 | 73 | Open |
| 745 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 8 | Mihnea Costachi | Olexandr Bortnyk | 0-1 | 24 | Open |
| 746 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 7 | Mihnea Costachi | Masha Klinova | 1-0 | 1 | Open |
| 747 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 6 | Samarth J Rao | Mihnea Costachi | 0-1 | 57 | Open |
| 748 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 5 | Mihnea Costachi | Azat Gabdrakhmanov | 0-1 | 31 | Open |
| 749 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 4 | Mihnea Costachi | Davi Sulzbacher Goncalves | 1-0 | 37 | Open |
| 750 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 3 | Tomasz Mika | Mihnea Costachi | 0-1 | 30 | Open |
| 751 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 2 | Lile Koridze | Mihnea Costachi | 1/2-1/2 | 55 | Open |
| 752 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 11 | Erik Ronka | Mihnea Costachi | 1/2-1/2 | 35 | Open |
| 753 | 2022-09-13 | Titled Tue 13th Sep Early | chess.com INT | 10 | Mihnea Costachi | Kutwal Shashikant | 1-0 | 91 | Open |
| 754 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 9 | Mihnea Costachi | Juan Cruz Arias | 1-0 | 54 | Open |
| 755 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 8 | Wojciech Przybylski | Mihnea Costachi | 0-1 | 27 | Open |
| 756 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 7 | Alexander Devaev | Mihnea Costachi | 0-1 | 65 | Open |
| 757 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 6 | Mihnea Costachi | Jesus Martin Duque | 0-1 | 50 | Open |
| 758 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 5 | Marie Sebag | Mihnea Costachi | 1-0 | 23 | Open |
| 759 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 4 | Mihnea Costachi | Gata Kamsky | 0-1 | 56 | Open |
| 760 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 3 | Mihnea Costachi | David Paravyan | 1/2-1/2 | 57 | Open |
| 761 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 2 | Konstantin Begunov | Mihnea Costachi | 0-1 | 28 | Open |
| 762 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 1 | Mihnea Costachi | Evgeny V. Melikhov | 1-0 | 59 | Open |
| 763 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 11 | Mihnea Costachi | Anna M. Sargsyan | 0-1 | 68 | Open |
| 764 | 2022-09-06 | Titled Tue 6th Sep Early | chess.com INT | 10 | Aleksandr Domalchuk-Jonasson | Mihnea Costachi | 1-0 | 46 | Open |
| 765 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 9 | Sergey Kim | Mihnea Costachi | 1-0 | 31 | Open |
| 766 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 8 | Vitor Hugo Vieira Ferreira | Mihnea Costachi | 0-1 | 72 | Open |
| 767 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 7 | Mihnea Costachi | Hernan Filgueira | 1/2-1/2 | 85 | Open |
| 768 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 6 | Alexander Donchenko | Mihnea Costachi | 1-0 | 77 | Open |
| 769 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 5 | Polina Shuvalova | Mihnea Costachi | 0-1 | 52 | Open |
| 770 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 4 | Mihnea Costachi | Tymon Czernek | 1-0 | 49 | Open |
| 771 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 3 | Mihnea Costachi | Khazar Babazada | 0-1 | 47 | Open |
| 772 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 2 | Aisen Mestnikov | Mihnea Costachi | 0-1 | 62 | Open |
| 773 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 1 | Mihnea Costachi | Sanjin Culum | 1-0 | 32 | Open |
| 774 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 11 | Kaan Kucuksari | Mihnea Costachi | 1-0 | 55 | Open |
| 775 | 2022-08-30 | Titled Tue 30th Aug Early | chess.com INT | 10 | Mihnea Costachi | Ivan Martic | 1-0 | 36 | Open |
| 776 | 2022-08-28 | GP Romania Stage 3 2022 | Miercurea Ciuc ROU | 9.3 | Mihnea Costachi | Ori Kobo | 1-0 | 77 | Open |
| 777 | 2022-08-27 | GP Romania Stage 3 2022 | Miercurea Ciuc ROU | 8.9 | Samuel-Timotei Ghimpu | Mihnea Costachi | 0-1 | 33 | Open |
| 778 | 2022-08-26 | GP Romania Stage 3 2022 | Miercurea Ciuc ROU | 7.6 | Mihnea Costachi | Alberto David | 1/2-1/2 | 26 | Open |
| 779 | 2022-08-25 | GP Romania Stage 3 2022 | Miercurea Ciuc ROU | 6.8 | Oleksii Bilych | Mihnea Costachi | 1/2-1/2 | 64 | Open |
| 780 | 2022-08-24 | GP Romania Stage 3 2022 | Miercurea Ciuc ROU | 5.7 | Mihnea Costachi | Gellert Karacsonyi | 1/2-1/2 | 24 | Open |
| 781 | 2022-08-23 | GP Romania Stage 3 2022 | Miercurea Ciuc ROU | 4.9 | Mircea Talu | Mihnea Costachi | 0-1 | 36 | Open |
| 782 | 2022-08-22 | GP Romania Stage 3 2022 | Miercurea Ciuc ROU | 3.15 | Mihnea Costachi | Almos Konyves | 1-0 | 45 | Open |
| 783 | 2022-08-21 | GP Romania Stage 3 2022 | Miercurea Ciuc ROU | 2.12 | Balazs Pasztor | Mihnea Costachi | 1-0 | 53 | Open |
| 784 | 2022-08-20 | GP Romania Stage 3 2022 | Miercurea Ciuc ROU | 1.13 | Mihnea Costachi | Armand Veress | 1-0 | 30 | Open |
| 785 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 9 | Mihnea Costachi | Arkadiusz Skawinski | 1-0 | 69 | Open |
| 786 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 8 | Slaven Pastar | Mihnea Costachi | 0-1 | 38 | Open |
| 787 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 7 | Mihnea Costachi | Shakked Tifferet | 1-0 | 29 | Open |
| 788 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 6 | Seit-Amet Karaev | Mihnea Costachi | 1-0 | 97 | Open |
| 789 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 5 | Mihnea Costachi | Olexandr Bortnyk | 0-1 | 62 | Open |
| 790 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 4 | Shamil Arslanov | Mihnea Costachi | 0-1 | 41 | Open |
| 791 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 3 | Tuan Minh Le | Mihnea Costachi | 1-0 | 38 | Open |
| 792 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 2 | Mihnea Costachi | Ricardo D. D`Arruda | 1-0 | 36 | Open |
| 793 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 1 | Xeniya Balabayeva | Mihnea Costachi | 0-1 | 20 | Open |
| 794 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 11 | Hayk Mirimanian | Mihnea Costachi | 1-0 | 35 | Open |
| 795 | 2022-08-16 | Titled Tue 16th Aug Early | chess.com INT | 10 | Mihnea Costachi | Dennis Wagner | 0-1 | 32 | Open |
| 796 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 9 | Mihnea Costachi | Andrey Levitskiy | 0-1 | 60 | Open |
| 797 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 8 | Sergei Zhigalko | Mihnea Costachi | 1-0 | 29 | Open |
| 798 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 7 | Artem Omelja | Mihnea Costachi | 0-1 | 44 | Open |
| 799 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 6 | Mihnea Costachi | Rodrigo Vasquez Schroeder | 0-1 | 32 | Open |
| 800 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 5 | Shane Melaugh | Mihnea Costachi | 0-1 | 51 | Open |
| 801 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 4 | Mihnea Costachi | Maksim Omariev | 1-0 | 55 | Open |
| 802 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 3 | Daniil Dubov | Mihnea Costachi | 1-0 | 52 | Open |
| 803 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 2 | Mihnea Costachi | Evgeny V. Melikhov | 1-0 | 44 | Open |
| 804 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 1 | Uriel Vazquez Espino | Mihnea Costachi | 0-1 | 35 | Open |
| 805 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 11 | Jose Remolar Gallen | Mihnea Costachi | 0-1 | 37 | Open |
| 806 | 2022-08-09 | Titled Tue 9th Aug Early | chess.com INT | 10 | Zehn Nasir | Mihnea Costachi | 1-0 | 55 | Open |
| 807 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 9 | Roberto Junio Brito Molina | Mihnea Costachi | 0-1 | 64 | Open |
| 808 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 8 | Mihnea Costachi | Vsevolod Ovchinnikov | 1-0 | 43 | Open |
| 809 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 7 | Leon Livaic | Mihnea Costachi | 1-0 | 60 | Open |
| 810 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 6 | Shaaketh Sivakumar | Mihnea Costachi | 0-1 | 56 | Open |
| 811 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 5 | Mihnea Costachi | Vladimir-Alexandru Cnejev | 1-0 | 36 | Open |
| 812 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 4 | Jubin Jimmy | Mihnea Costachi | 1-0 | 33 | Open |
| 813 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 3 | Mihnea Costachi | Anna Shukhman | 1-0 | 56 | Open |
| 814 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 2 | Aleksandr Shimanov | Mihnea Costachi | 1-0 | 36 | Open |
| 815 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 1 | Mihnea Costachi | Roxangel Obregon Garcia | 1-0 | 47 | Open |
| 816 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 11 | Mihnea Costachi | Sergei Lobanov | 1-0 | 89 | Open |
| 817 | 2022-08-02 | Titled Tue 2nd Aug Early | chess.com INT | 10 | Sergei Shipov | Mihnea Costachi | 0-1 | 23 | Open |
| 818 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 9 | Darko R Mitrovic | Mihnea Costachi | 0-1 | 43 | Open |
| 819 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 8 | Mihnea Costachi | Paolo Ciuffoletti | 0-1 | 25 | Open |
| 820 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 7 | Jorge Carlos Antonio | Mihnea Costachi | 0-1 | 37 | Open |
| 821 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 6 | Mihnea Costachi | Khoi Pham | 0-1 | 36 | Open |
| 822 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 5 | Christian Silvestre | Mihnea Costachi | 1-0 | 52 | Open |
| 823 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 4 | Mihnea Costachi | Alikhon Avazkhonov | 0-1 | 57 | Open |
| 824 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 3 | Maksim Omariev | Mihnea Costachi | 1-0 | 38 | Open |
| 825 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 2 | Mihnea Costachi | Sergei Ulasevich | 1-0 | 39 | Open |
| 826 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 1 | Jaime Valmana Canto | Mihnea Costachi | 1-0 | 39 | Open |
| 827 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 11 | Rasyid A. Hidayat Bintang | Mihnea Costachi | 0-1 | 44 | Open |
| 828 | 2022-07-26 | Titled Tue 26th Jul Early | chess.com INT | 10 | Mihnea Costachi | Regita Desyari Putri | 1-0 | 39 | Open |
| 829 | 2022-07-14 | 41st Benasque Open 2022 | Benasque ESP | 9.3 | Mihnea Costachi | Raunak Sadhwani | 0-1 | 46 | Open |
| 830 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 9 | Mihnea Costachi | Erez Kupervaser | 1-0 | 18 | Open |
| 831 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 8 | Tomasz Jaskolka | Mihnea Costachi | 1-0 | 73 | Open |
| 832 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 7 | Mihnea Costachi | S Ajay Krishna | 0-1 | 21 | Open |
| 833 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 6 | Nicholas Ladan | Mihnea Costachi | 1/2-1/2 | 58 | Open |
| 834 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 5 | Dmitry Gurevich | Mihnea Costachi | 1-0 | 53 | Open |
| 835 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 4 | Mihnea Costachi | Grigoriy Oparin | 0-1 | 29 | Open |
| 836 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 3 | Mihnea Costachi | Donald Johnson | 1-0 | 55 | Open |
| 837 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 2 | Georgi Orlov | Mihnea Costachi | 1/2-1/2 | 53 | Open |
| 838 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 1 | Mihnea Costachi | Michael Buscar | 1-0 | 40 | Open |
| 839 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 11 | Mihnea Costachi | Garv Gaur | 1-0 | 35 | Open |
| 840 | 2022-06-28 | Titled Tue 28th Jun Early | chess.com INT | 10 | Eduardo Jesus Mendez Fortes | Mihnea Costachi | 0-1 | 35 | Open |
| 841 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 9 | Maksim Volkov | Mihnea Costachi | 1-0 | 84 | Open |
| 842 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 8 | Olexandr Bortnyk | Mihnea Costachi | 1-0 | 52 | Open |
| 843 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 7 | Mihnea Costachi | Haoxiang Jia | 1-0 | 53 | Open |
| 844 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 6 | Semetei Tologon tegin | Mihnea Costachi | 0-1 | 36 | Open |
| 845 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 5 | Mihnea Costachi | Jeffery Xiong | 0-1 | 50 | Open |
| 846 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 4 | Mihnea Costachi | Aram Hakobyan | 1/2-1/2 | 84 | Open |
| 847 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 3 | Umid Aslanov | Mihnea Costachi | 0-1 | 39 | Open |
| 848 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 2 | Mihnea Costachi | Jerzy Jesus Perez Leiva | 1-0 | 41 | Open |
| 849 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 1 | Guillermo Baches Garcia | Mihnea Costachi | 1/2-1/2 | 55 | Open |
| 850 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 11 | Piotr Mickiewicz | Mihnea Costachi | 0-1 | 47 | Open |
| 851 | 2022-06-21 | Titled Tue 21st Jun Early | chess.com INT | 10 | Mihnea Costachi | Iung Alicio de O. Pinheiro | 0-1 | 54 | Open |
| 852 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 9 | Asa Hoffmann | Mihnea Costachi | 1/2-1/2 | 67 | Open |
| 853 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 8 | Mihnea Costachi | Justin Sarkar | 1-0 | 54 | Open |
| 854 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 7 | Artem Omelja | Mihnea Costachi | 1-0 | 34 | Open |
| 855 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 6 | Damian Sliwicki | Mihnea Costachi | 0-1 | 0 | Open |
| 856 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 5 | Mihnea Costachi | Jorge Carlos Antonio | 1-0 | 33 | Open |
| 857 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 4 | Alexander Devaev | Mihnea Costachi | 1-0 | 57 | Open |
| 858 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 3 | Mihnea Costachi | Michael Buscar | 1-0 | 41 | Open |
| 859 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 2 | Mihnea Costachi | Artem Odegov | 0-1 | 44 | Open |
| 860 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 1 | Daniel Cremisi | Mihnea Costachi | 1-0 | 80 | Open |
| 861 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 11 | Sergey D. Rodchenkov | Mihnea Costachi | 0-1 | 32 | Open |
| 862 | 2022-06-14 | Titled Tue 14th Jun Early | chess.com INT | 10 | Mihnea Costachi | Mikita Mayorau | 1-0 | 57 | Open |
| 863 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 9 | Mihnea Costachi | Mihailo Djokic | 1-0 | 26 | Open |
| 864 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 8 | Mihnea Costachi | Axel Bachmann | 1-0 | 35 | Open |
| 865 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 7 | Daniel W Gormally | Mihnea Costachi | 0-1 | 34 | Open |
| 866 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 6 | Mihnea Costachi | Eric Rosen | 0-1 | 57 | Open |
| 867 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 5 | Alexei Saveliev | Mihnea Costachi | 0-1 | 39 | Open |
| 868 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 4 | Mihnea Costachi | Alexandros Papasimakopoulos | 1/2-1/2 | 120 | Open |
| 869 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 3 | Alejandro Alvarado Diaz | Mihnea Costachi | 1/2-1/2 | 35 | Open |
| 870 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 2 | Eilia Zomorrodian | Mihnea Costachi | 0-1 | 38 | Open |
| 871 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 1 | Mihnea Costachi | Martin Horak | 1-0 | 41 | Open |
| 872 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 11 | Mihnea Costachi | David W L Howell | 0-1 | 28 | Open |
| 873 | 2022-06-07 | Titled Tue 7th Jun Early | chess.com INT | 10 | Olexandr Bortnyk | Mihnea Costachi | 1/2-1/2 | 99 | Open |
| 874 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 9 | Mihnea Costachi | Ramil Hasangatin | 0-1 | 43 | Open |
| 875 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 8 | Raunak Sadhwani | Mihnea Costachi | 1-0 | 42 | Open |
| 876 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 7 | Mihnea Costachi | Jeffery Xiong | 1/2-1/2 | 53 | Open |
| 877 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 6 | Marcus R Harvey | Mihnea Costachi | 0-1 | 31 | Open |
| 878 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 5 | Mihnea Costachi | Yahli Sokolovsky | 1-0 | 47 | Open |
| 879 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 4 | Sergey Kim | Mihnea Costachi | 0-1 | 59 | Open |
| 880 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 3 | Oleg Kozlov | Mihnea Costachi | 1-0 | 38 | Open |
| 881 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 2 | Mihnea Costachi | Mikhail Golubev | 1-0 | 44 | Open |
| 882 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 1 | Rafal Tymrakiewicz | Mihnea Costachi | 0-1 | 51 | Open |
| 883 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 11 | Mihnea Costachi | Thibault Fantinel | 0-1 | 48 | Open |
| 884 | 2022-05-31 | Titled Tue 31st May Early | chess.com INT | 10 | Daniel Barria Zuniga | Mihnea Costachi | 1/2-1/2 | 65 | Open |
| 885 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 9 | Mihnea Costachi | Tuan Minh Le | 0-1 | 89 | Open |
| 886 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 8 | Nad-Titus Petre | Mihnea Costachi | 0-1 | 75 | Open |
| 887 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 7 | Mihnea Costachi | Jakub Seemann | 1-0 | 32 | Open |
| 888 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 6 | Anna M. Sargsyan | Mihnea Costachi | 0-1 | 31 | Open |
| 889 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 5 | Mihnea Costachi | Nicodim-Cosmin Stepanencu | 1-0 | 40 | Open |
| 890 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 4 | Arthur Kruckenhauser | Mihnea Costachi | 1-0 | 52 | Open |
| 891 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 3 | Mihnea Costachi | Viktor Maksimenko | 0-1 | 38 | Open |
| 892 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 2 | Dejan Tasev | Mihnea Costachi | 0-1 | 44 | Open |
| 893 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 1 | Mihnea Costachi | Slawomir Chojnacki | 1-0 | 53 | Open |
| 894 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 11 | Daniel Barria Zuniga | Mihnea Costachi | 0-1 | 61 | Open |
| 895 | 2022-05-24 | Titled Tue 24th May Early | chess.com INT | 10 | Zachary Tanenbaum | Mihnea Costachi | 0-1 | 57 | Open |
| 896 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 9 | Meri Arabidze | Mihnea Costachi | 0-1 | 30 | Open |
| 897 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 8 | Mihnea Costachi | Maksim Schekachikhin | 1-0 | 36 | Open |
| 898 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 7 | Shreyas Royal | Mihnea Costachi | 0-1 | 28 | Open |
| 899 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 6 | Mihnea Costachi | Benik Agasarov | 0-1 | 51 | Open |
| 900 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 5 | Artak Manukian | Mihnea Costachi | 0-1 | 46 | Open |
| 901 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 4 | Ali Mortazavi | Mihnea Costachi | 0-1 | 25 | Open |
| 902 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 3 | Mihnea Costachi | Vilka Sipila | 0-1 | 33 | Open |
| 903 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 2 | Alexander Reprintsev | Mihnea Costachi | 1-0 | 37 | Open |
| 904 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 1 | Mihnea Costachi | Alexander Zlatin | 1-0 | 74 | Open |
| 905 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 11 | Mihnea Costachi | Lefong Hua | 1-0 | 61 | Open |
| 906 | 2022-05-17 | Titled Tue 17th May Early | chess.com INT | 10 | Jakub Seemann | Mihnea Costachi | 1-0 | 43 | Open |
| 907 | 2022-05-01 | Super Chess Rapid Open | Bucharest ROU | 9 | Mihnea Costachi | Vitaly Sivuk | 1/2-1/2 | 54 | Open |
| 908 | 2022-05-01 | Super Chess Rapid Open | Bucharest ROU | 8 | Antoaneta Stefanova | Mihnea Costachi | 0-1 | 40 | Open |
| 909 | 2022-05-01 | Super Chess Rapid Open | Bucharest ROU | 7 | Mihnea Costachi | Dragos-Andrei Antonica | 1-0 | 57 | Open |
| 910 | 2022-05-01 | Super Chess Rapid Open | Bucharest ROU | 6 | Bogdan-Petru Carasca | Mihnea Costachi | 1/2-1/2 | 62 | Open |
| 911 | 2022-05-01 | Super Chess Rapid Open | Bucharest ROU | 5 | Mihnea Costachi | Robert-Ionut Creanga | 1-0 | 61 | Open |
| 912 | 2022-05-01 | Super Chess Rapid Open | Bucharest ROU | 10 | Oleksii Bilych | Mihnea Costachi | 1/2-1/2 | 54 | Open |
| 913 | 2022-04-30 | Super Chess Rapid Open | Bucharest ROU | 4 | Bogdan-Daniel Deac | Mihnea Costachi | 1-0 | 53 | Open |
| 914 | 2022-04-30 | Super Chess Rapid Open | Bucharest ROU | 3 | Mihnea Costachi | Nazar Laptii | 1-0 | 63 | Open |
| 915 | 2022-04-30 | Super Chess Rapid Open | Bucharest ROU | 2 | Ioan-Francisc Breitkopf | Mihnea Costachi | 0-1 | 23 | Open |
| 916 | 2022-04-30 | Super Chess Rapid Open | Bucharest ROU | 1 | Mihnea Costachi | Robert-Gabriel Sava | 1-0 | 41 | Open |
| 917 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 9 | Iwo Karolczuk | Mihnea Costachi | 1-0 | 75 | Open |
| 918 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 8 | Mihnea Costachi | Balazs Csonka | 1/2-1/2 | 66 | Open |
| 919 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 7 | Koosha Jaferian | Mihnea Costachi | 0-1 | 19 | Open |
| 920 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 6 | Mihnea Costachi | Iustin Ciorgovean | 1-0 | 20 | Open |
| 921 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 5 | Ramil Hasangatin | Mihnea Costachi | 1-0 | 74 | Open |
| 922 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 4 | Mihnea Costachi | Orest Vovk | 1-0 | 27 | Open |
| 923 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 3 | Sergey Kim | Mihnea Costachi | 1/2-1/2 | 66 | Open |
| 924 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 2 | Mihnea Costachi | Ruben Gideon Koellner | 1/2-1/2 | 66 | Open |
| 925 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 1 | Serhan Berat Ozdemir | Mihnea Costachi | 0-1 | 43 | Open |
| 926 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 11 | Mihnea Costachi | Ivan Martic | 1-0 | 46 | Open |
| 927 | 2022-04-26 | Titled Tue 26th Apr Early | chess.com INT | 10 | Mihailo Djokic | Mihnea Costachi | 1-0 | 50 | Open |
| 928 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 9 | Mihnea Costachi | Ivan Vihor Krsnik Cohar | 1-0 | 31 | Open |
| 929 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 8 | Stanislav Tsyhanchuk | Mihnea Costachi | 0-1 | 71 | Open |
| 930 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 7 | Mihnea Costachi | Xiaobing Gu | 1-0 | 37 | Open |
| 931 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 6 | Malak Ismayil | Mihnea Costachi | 0-1 | 46 | Open |
| 932 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 5 | Mihnea Costachi | Nikita Shandrygin | 0-1 | 71 | Open |
| 933 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 4 | Michael Buscar | Mihnea Costachi | 0-1 | 64 | Open |
| 934 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 3 | Mihnea Costachi | Sergei Ljukin | 0-1 | 21 | Open |
| 935 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 2 | Semetei Tologon tegin | Mihnea Costachi | 1-0 | 53 | Open |
| 936 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 1 | Mihnea Costachi | Vladimir Mikhalsky | 1-0 | 50 | Open |
| 937 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 11 | Azer Mirzoev | Mihnea Costachi | 1/2-1/2 | 56 | Open |
| 938 | 2022-04-19 | Titled Tue 19th Apr Early | chess.com INT | 10 | Garg Aradhya | Mihnea Costachi | 1-0 | 25 | Open |
| 939 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 9 | Mihnea Costachi | Nodirbek Abdusattorov | 1-0 | 64 | Open |
| 940 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 8 | Mihnea Costachi | Ari Guz | 1-0 | 77 | Open |
| 941 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 7 | Pavel V. Tregubov | Mihnea Costachi | 1/2-1/2 | 47 | Open |
| 942 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 6 | Mihnea Costachi | Ivan Zemlyanskii | 1-0 | 64 | Open |
| 943 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 5 | Lefong Hua | Mihnea Costachi | 1/2-1/2 | 73 | Open |
| 944 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 4 | Mihnea Costachi | Alexandra Obolentseva | 1/2-1/2 | 115 | Open |
| 945 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 3 | Maroun Tomb | Mihnea Costachi | 0-1 | 73 | Open |
| 946 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 2 | Mihnea Costachi | Martin Horak | 1-0 | 32 | Open |
| 947 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 1 | Santiago Rodriguez | Mihnea Costachi | 1-0 | 37 | Open |
| 948 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 11 | Mihnea Costachi | Nitzan Steinberg | 1/2-1/2 | 33 | Open |
| 949 | 2022-03-29 | Titled Tue 29th Mar Early | chess.com INT | 10 | Maxim Matlakov | Mihnea Costachi | 1/2-1/2 | 60 | Open |
| 950 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 9 | Mihnea Costachi | Ali Rastbod | 1-0 | 38 | Open |
| 951 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 8 | Rasmus Svane | Mihnea Costachi | 1-0 | 51 | Open |
| 952 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 7 | Aman Hambleton | Mihnea Costachi | 0-1 | 27 | Open |
| 953 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 6 | Mihnea Costachi | Bogdan-Daniel Deac | 0-1 | 49 | Open |
| 954 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 5 | Mihnea Costachi | Sergei Iskusnyh | 1-0 | 30 | Open |
| 955 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 4 | Vladimir Fedoseev | Mihnea Costachi | 1-0 | 41 | Open |
| 956 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 3 | Mihnea Costachi | Vladislav Artemiev | 1-0 | 51 | Open |
| 957 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 2 | Mihnea Costachi | Mohamed Ezat | 1-0 | 49 | Open |
| 958 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 1 | Martin Horak | Mihnea Costachi | 0-1 | 65 | Open |
| 959 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 11 | Mihnea Costachi | Dmitry Rostovtsev | 0-1 | 52 | Open |
| 960 | 2022-03-22 | Titled Tue 22nd Mar Late | chess.com INT | 10 | Bojan Maksimovic | Mihnea Costachi | 1-0 | 61 | Open |
| 961 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 9 | Mihnea Costachi | Denis Lazavik | 0-1 | 32 | Open |
| 962 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 8 | Meri Arabidze | Mihnea Costachi | 0-1 | 103 | Open |
| 963 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 7 | Mihnea Costachi | Marco Riehle | 1/2-1/2 | 64 | Open |
| 964 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 6 | Jose Eduardo Martinez Alcantara | Mihnea Costachi | 1-0 | 76 | Open |
| 965 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 5 | Mihnea Costachi | Tuna Ozates | 1-0 | 51 | Open |
| 966 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 4 | Alexander Khripachenko | Mihnea Costachi | 0-1 | 53 | Open |
| 967 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 3 | Mihnea Costachi | Aleksandar Indjic | 0-1 | 48 | Open |
| 968 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 2 | Mihnea Costachi | Justin Chen | 1-0 | 56 | Open |
| 969 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 1 | Mitch Fishbein | Mihnea Costachi | 0-1 | 58 | Open |
| 970 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 11 | Levy Rozman | Mihnea Costachi | 1-0 | 60 | Open |
| 971 | 2022-03-15 | Titled Tue 15th Mar Late | chess.com INT | 10 | Karina Ambartsumova | Mihnea Costachi | 0-1 | 36 | Open |
| 972 | 2022-03-12 | ch-ROU Rapid 2022 | Bucharest ROU | 9 | Silviu-Aurelian Dan | Mihnea Costachi | 0-1 | 39 | Open |
| 973 | 2022-03-12 | ch-ROU Rapid 2022 | Bucharest ROU | 8 | Mihnea Costachi | Bogdan-Daniel Deac | 0-1 | 51 | Open |
| 974 | 2022-03-12 | ch-ROU Rapid 2022 | Bucharest ROU | 7 | Dragos-Daniel Martian | Mihnea Costachi | 0-1 | 59 | Open |
| 975 | 2022-03-12 | ch-ROU Rapid 2022 | Bucharest ROU | 6 | Mihnea Costachi | Mihnea-George Coman | 1-0 | 41 | Open |
| 976 | 2022-03-12 | ch-ROU Rapid 2022 | Bucharest ROU | 5 | Andrei-Cristian Bulau | Mihnea Costachi | 1/2-1/2 | 33 | Open |
| 977 | 2022-03-12 | ch-ROU Rapid 2022 | Bucharest ROU | 4 | Mihnea Costachi | Sasha-Matei Craciun | 1-0 | 60 | Open |
| 978 | 2022-03-12 | ch-ROU Rapid 2022 | Bucharest ROU | 3 | Teodor-Cosmin Nedelcu | Mihnea Costachi | 1-0 | 88 | Open |
| 979 | 2022-03-11 | ch-ROU Rapid 2022 | Bucharest ROU | 2 | Mihnea Costachi | Cristian Atomei | 1-0 | 35 | Open |
| 980 | 2022-03-11 | ch-ROU Rapid 2022 | Bucharest ROU | 1 | Adrian Dusa | Mihnea Costachi | 0-1 | 15 | Open |
| 981 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 9 | Mihnea Costachi | Leandro Krysa | 1-0 | 54 | Open |
| 982 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 8 | Mihnea Costachi | Garg Aradhya | 1-0 | 57 | Open |
| 983 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 7 | Yan Derige Kane | Mihnea Costachi | 0-1 | 65 | Open |
| 984 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 6 | Mihnea Costachi | Ivan Aldokhin | 0-1 | 34 | Open |
| 985 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 5 | Mihnea Costachi | Oleksii Bilych | 0-1 | 74 | Open |
| 986 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 4 | Daniil Dubov | Mihnea Costachi | 1-0 | 43 | Open |
| 987 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 3 | Jesus Martin Duque | Mihnea Costachi | 0-1 | 52 | Open |
| 988 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 2 | Mihnea Costachi | Benik Agasarov | 1-0 | 87 | Open |
| 989 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 1 | Maksim Omariev | Mihnea Costachi | 0-1 | 33 | Open |
| 990 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 11 | Mihnea Costachi | Azer Mirzoev | 1-0 | 22 | Open |
| 991 | 2022-03-08 | Titled Tue 8th Mar Early | chess.com INT | 10 | Miran Oganian | Mihnea Costachi | 1/2-1/2 | 76 | Open |
| 992 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 9 | Dmitry Kirillov | Mihnea Costachi | 1-0 | 67 | Open |
| 993 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 8 | Mihnea Costachi | Arad Nazari | 1-0 | 69 | Open |
| 994 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 7 | Alexei Terzi | Mihnea Costachi | 0-1 | 70 | Open |
| 995 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 6 | Mihnea Costachi | Jonas Prado Lobo | 1-0 | 33 | Open |
| 996 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 5 | P. Komal Kishore | Mihnea Costachi | 0-1 | 43 | Open |
| 997 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 4 | Iung Alicio de O. Pinheiro | Mihnea Costachi | 1-0 | 76 | Open |
| 998 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 3 | Mihnea Costachi | Kateryna Dolzhykova | 1-0 | 57 | Open |
| 999 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 2 | William Ferreira Da Cruz | Mihnea Costachi | 1/2-1/2 | 72 | Open |
| 1000 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 1 | Mihnea Costachi | Timofey Iljin | 0-1 | 49 | Open |
| 1001 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 11 | Jakub Fus | Mihnea Costachi | 0-1 | 34 | Open |
| 1002 | 2022-03-01 | Titled Tue 1st Mar Early | chess.com INT | 10 | Mihnea Costachi | Aleksandra Goryachkina | 1-0 | 59 | Open |
| 1003 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 9 | Roberto Carlos Gomez Ledo | Mihnea Costachi | 1-0 | 50 | Open |
| 1004 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 9 | Mihnea Costachi | Olexandr Bortnyk | 1-0 | 53 | Open |
| 1005 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 8 | Mihnea Costachi | Kaiqi Yang | 1-0 | 48 | Open |
| 1006 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 8 | Mihnea Costachi | Pavel V. Tregubov | 1-0 | 68 | Open |
| 1007 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 7 | Nodirbek Abdusattorov | Mihnea Costachi | 1-0 | 80 | Open |
| 1008 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 7 | Mihnea Costachi | Lucas Aguiar Cunha | 1-0 | 42 | Open |
| 1009 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 6 | Anna M. Sargsyan | Mihnea Costachi | 1-0 | 51 | Open |
| 1010 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 6 | Aram Hakobyan | Mihnea Costachi | 0-1 | 30 | Open |
| 1011 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 5 | Farid Mustafayev | Mihnea Costachi | 1-0 | 33 | Open |
| 1012 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 5 | Mihnea Costachi | Melikset Khachiyan | 1/2-1/2 | 42 | Open |
| 1013 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 4 | Mihnea Costachi | K. Ratnakaran | 1-0 | 31 | Open |
| 1014 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 4 | Mihnea Costachi | David Paravyan | 1/2-1/2 | 43 | Open |
| 1015 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 3 | Ian Nepomniachtchi | Mihnea Costachi | 1-0 | 31 | Open |
| 1016 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 3 | Mihnea Costachi | Emil Risteski | 1-0 | 25 | Open |
| 1017 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 2 | Daniil Postnikov | Mihnea Costachi | 1/2-1/2 | 49 | Open |
| 1018 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 2 | Mihnea Costachi | Mobina Alinasab | 1-0 | 44 | Open |
| 1019 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 1 | Aaditya Dhingra | Mihnea Costachi | 0-1 | 32 | Open |
| 1020 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 1 | Mihnea Costachi | Julian Estrada Nieto | 1-0 | 29 | Open |
| 1021 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 11 | Ramil Hasangatin | Mihnea Costachi | 0-1 | 58 | Open |
| 1022 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 11 | Mihnea Costachi | Alexander Zubov | 1/2-1/2 | 74 | Open |
| 1023 | 2022-02-08 | Titled Tue 8th Feb Early | chess.com INT | 10 | Anton Demchenko | Mihnea Costachi | 1-0 | 64 | Open |
| 1024 | 2022-02-08 | Titled Tue 8th Feb Late | chess.com INT | 10 | Mihnea Costachi | Georgios-Alexandros Kouskoutis | 1-0 | 63 | Open |
| 1025 | 2022-02-06 | KCF University Cup 2022 | lichess.org INT | 9.13 | Vladimir Hein | Mihnea Costachi | 1/2-1/2 | 83 | Open |
| 1026 | 2022-02-06 | KCF University Cup 2022 | lichess.org INT | 8.122 | Mihnea Costachi | Daniel GH Gallagher | 1-0 | 28 | Open |
| 1027 | 2022-02-06 | KCF University Cup 2022 | lichess.org INT | 7.138 | Cameron Wheeler | Mihnea Costachi | 0-1 | 23 | Open |
| 1028 | 2022-02-06 | KCF University Cup 2022 | lichess.org INT | 6.158 | Mihnea Costachi | Joseph Wan | 1/2-1/2 | 45 | Open |
| 1029 | 2022-02-05 | KCF University Cup 2022 | lichess.org INT | 5.118 | Akmalnaidi Akbar | Mihnea Costachi | 1-0 | 30 | Open |
| 1030 | 2022-02-05 | KCF University Cup 2022 | lichess.org INT | 4.102 | Mihnea Costachi | Gilbert Elroy Tarigan | 1-0 | 91 | Open |
| 1031 | 2022-02-05 | KCF University Cup 2022 | lichess.org INT | 3.106 | 13522758782417281850 | Mihnea Costachi | 0-1 | 46 | Open |
| 1032 | 2022-02-05 | KCF University Cup 2022 | lichess.org INT | 2.11 | Mihnea Costachi | 11253092779964175293 | 1-0 | 38 | Open |
| 1033 | 2022-02-05 | KCF University Cup 2022 | lichess.org INT | 1.11 | Kevin Ordet | Mihnea Costachi | 0-1 | 34 | Open |
| 1034 | 2022-02-01 | Titled Tuesday 1st Feb A | chess.com INT | 9 | Mihnea Costachi | Harilos Karabalis | 1-0 | 37 | Open |
| 1035 | 2022-02-01 | Titled Tuesday 1st Feb A | chess.com INT | 8 | Malak Ismayil | Mihnea Costachi | 1/2-1/2 | 49 | Open |
| 1036 | 2022-02-01 | Titled Tuesday 1st Feb A | chess.com INT | 7 | Mihnea Costachi | Pandey Srishti | 1-0 | 38 | Open |
| 1037 | 2022-02-01 | Titled Tuesday 1st Feb A | chess.com INT | 6 | Mihnea Costachi | Kevin Ranidu Silva | 1-0 | 46 | Open |
| 1038 | 2022-02-01 | Titled Tuesday 1st Feb A | chess.com INT | 5 | Anna Cramling Bellon | Mihnea Costachi | 0-1 | 56 | Open |
| 1039 | 2022-02-01 | Titled Tuesday 1st Feb A | chess.com INT | 11 | Mohamed Ezat | Mihnea Costachi | 0-1 | 50 | Open |
| 1040 | 2022-02-01 | Titled Tuesday 1st Feb A | chess.com INT | 10 | Mihnea Costachi | Tarun Kanyamarala | 1/2-1/2 | 100 | Open |
| 1041 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 9 | Mihnea Costachi | Semen Mitusov | 1-0 | 28 | Open |
| 1042 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 8 | Niranjan Navalgund | Mihnea Costachi | 1/2-1/2 | 123 | Open |
| 1043 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 7 | Mihnea Costachi | Moritz Weishaeutel | 1-0 | 23 | Open |
| 1044 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 6 | Viacheslav Tikhonov | Mihnea Costachi | 1-0 | 42 | Open |
| 1045 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 5 | Klementy Sychev | Mihnea Costachi | 1-0 | 49 | Open |
| 1046 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 4 | Mihnea Costachi | Raunak Sadhwani | 1/2-1/2 | 60 | Open |
| 1047 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 3 | Mihnea Costachi | Nikolai Vlassov | 1-0 | 40 | Open |
| 1048 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 2 | Joshua Altman | Mihnea Costachi | 0-1 | 51 | Open |
| 1049 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 1 | Mihnea Costachi | Veronika Shubenkova | 1-0 | 21 | Open |
| 1050 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 11 | Mihnea Costachi | Valentina Gunina | 1-0 | 77 | Open |
| 1051 | 2022-01-25 | Titled Tuesday 25th Jan | chess.com INT | 10 | Pere Garriga Cazorla | Mihnea Costachi | 0-1 | 42 | Open |
| 1052 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 9 | Mihnea Costachi | Stanislav Tsyhanchuk | 1-0 | 39 | Open |
| 1053 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 8 | Gerardo Antonio Gracia Alvarez | Mihnea Costachi | 0-1 | 59 | Open |
| 1054 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 7 | Mihnea Costachi | Johann Hjartarson | 0-1 | 35 | Open |
| 1055 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 6 | Keith Khumalo | Mihnea Costachi | 1-0 | 30 | Open |
| 1056 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 5 | Mihnea Costachi | Alexander A. Evdokimov | 1-0 | 33 | Open |
| 1057 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 4 | M. Amin Tabatabaei | Mihnea Costachi | 1-0 | 27 | Open |
| 1058 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 3 | Mihnea Costachi | Maciej Swicarz | 1-0 | 27 | Open |
| 1059 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 2 | Danila Bilan | Mihnea Costachi | 0-1 | 35 | Open |
| 1060 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 1 | Mihnea Costachi | Alberto Santos Flores | 1-0 | 50 | Open |
| 1061 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 11 | Mihnea Costachi | Aditya Mittal | 1-0 | 57 | Open |
| 1062 | 2022-01-18 | Titled Tuesday 18th Jan | chess.com INT | 10 | Ivan Ivanisevic | Mihnea Costachi | 0-1 | 36 | Open |
| 1063 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 9 | Mihnea Costachi | Senthil Maran K | 0-1 | 76 | Open |
| 1064 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 8 | Mihnea Costachi | Alexandros Papasimakopoulos | 1-0 | 56 | Open |
| 1065 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 7 | Lucas Aguiar Cunha | Mihnea Costachi | 0-1 | 42 | Open |
| 1066 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 6 | Mihnea Costachi | Ihor Samunenkov | 1/2-1/2 | 82 | Open |
| 1067 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 5 | Gabriel Quispe Arteaga | Mihnea Costachi | 1-0 | 43 | Open |
| 1068 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 4 | Mihnea Costachi | Vadym Petrovskiy | 1-0 | 53 | Open |
| 1069 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 3 | Mihnea Costachi | Denis Kovalev | 1/2-1/2 | 36 | Open |
| 1070 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 2 | Kamran Shirazi | Mihnea Costachi | 0-1 | 0 | Open |
| 1071 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 1 | Mihnea Costachi | Josefine Safarli | 1-0 | 36 | Open |
| 1072 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 11 | Mihnea Costachi | Alexandra Kosteniuk | 1-0 | 58 | Open |
| 1073 | 2022-01-11 | Titled Tuesday 11th Jan | chess.com INT | 10 | Garg Aradhya | Mihnea Costachi | 0-1 | 51 | Open |
| 1074 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 9 | Panesar Vedant | Mihnea Costachi | 0-1 | 73 | Open |
| 1075 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 8 | Oleg Krivonosov | Mihnea Costachi | 0-1 | 59 | Open |
| 1076 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 7 | Mihnea Costachi | Mohamed Ezat | 1-0 | 35 | Open |
| 1077 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 6 | Shah Dev | Mihnea Costachi | 1-0 | 60 | Open |
| 1078 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 5 | Mihnea Costachi | Omer Faruk Ozer | 1-0 | 22 | Open |
| 1079 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 4 | Mihnea Costachi | Aleksandra Maltsevskaya | 1-0 | 55 | Open |
| 1080 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 3 | Balaji Daggupati | Mihnea Costachi | 1-0 | 53 | Open |
| 1081 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 2 | Mihnea Costachi | Vladislav Chizhikov | 1-0 | 46 | Open |
| 1082 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 1 | Naveen Jain | Mihnea Costachi | 0-1 | 37 | Open |
| 1083 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 11 | Ranindu Dilshan Liyanage | Mihnea Costachi | 0-1 | 65 | Open |
| 1084 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 10 | Mihnea Costachi | Raunak Sadhwani | 0-1 | 30 | Open |
| 1085 | 2021-12-30 | World Blitz 2021 | Warsaw POL | 21.71 | Mihnea Costachi | Jesper Sondergaard Thybo | 1-0 | 38 | Open |
| 1086 | 2021-12-30 | World Blitz 2021 | Warsaw POL | 20.73 | Piotr Lopusiewicz | Mihnea Costachi | 0-1 | 42 | Open |
| 1087 | 2021-12-30 | World Blitz 2021 | Warsaw POL | 19.76 | Mihnea Costachi | Vladislav Nevednichy | 1/2-1/2 | 62 | Open |
| 1088 | 2021-12-30 | World Blitz 2021 | Warsaw POL | 18.67 | Oleg Vastrukhin | Mihnea Costachi | 1-0 | 54 | Open |
| 1089 | 2021-12-30 | World Blitz 2021 | Warsaw POL | 17.68 | Mihnea Costachi | Nikolas Theodorou | 0-1 | 56 | Open |
| 1090 | 2021-12-30 | World Blitz 2021 | Warsaw POL | 16.72 | Krzysztof Jakubowski | Mihnea Costachi | 0-1 | 52 | Open |
| 1091 | 2021-12-30 | World Blitz 2021 | Warsaw POL | 15.69 | Mihnea Costachi | Pawel Teclaf | 0-1 | 96 | Open |
| 1092 | 2021-12-30 | World Blitz 2021 | Warsaw POL | 14.57 | Hovhannes Gabuzyan | Mihnea Costachi | 1-0 | 58 | Open |
| 1093 | 2021-12-30 | World Blitz 2021 | Warsaw POL | 13.57 | Mihnea Costachi | Narayanan S L | 1/2-1/2 | 39 | Open |
| 1094 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 9.45 | A.R. Saleh Salem | Mihnea Costachi | 1-0 | 38 | Open |
| 1095 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 8.32 | Mihnea Costachi | Alexandr Predke | 0-1 | 39 | Open |
| 1096 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 7.46 | Aryan Tari | Mihnea Costachi | 0-1 | 45 | Open |
| 1097 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 6.65 | Mihnea Costachi | Mateusz Bartel | 1-0 | 39 | Open |
| 1098 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 5.83 | Kasib Laith | Mihnea Costachi | 0-1 | 20 | Open |
| 1099 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 4.64 | Mihnea Costachi | Sergey Karjakin | 0-1 | 42 | Open |
| 1100 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 3.86 | Sabri Abdul-Mawla Sallam | Mihnea Costachi | 0-1 | 23 | Open |
| 1101 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 2.58 | Mihnea Costachi | Daniil Dubov | 0-1 | 58 | Open |
| 1102 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 12.56 | Matthias Bluebaum | Mihnea Costachi | 1/2-1/2 | 66 | Open |
| 1103 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 11.48 | Mihnea Costachi | Andrei Volokitin | 0-1 | 60 | Open |
| 1104 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 10.56 | Mihnea Costachi | Alvar Alonso Rosell | 1-0 | 35 | Open |
| 1105 | 2021-12-29 | World Blitz 2021 | Warsaw POL | 1.36 | Ahmed Adly | Mihnea Costachi | 1-0 | 58 | Open |
| 1106 | 2021-12-28 | World Rapid 2021 | Warsaw POL | 13.55 | Andreas Heimann | Mihnea Costachi | 1/2-1/2 | 7 | Open |
| 1107 | 2021-12-28 | World Rapid 2021 | Warsaw POL | 12.73 | Mihnea Costachi | Milosz Szpar | 1-0 | 35 | Open |
| 1108 | 2021-12-28 | World Rapid 2021 | Warsaw POL | 11.55 | Samvel Ter-Sahakyan | Mihnea Costachi | 1-0 | 54 | Open |
| 1109 | 2021-12-28 | World Rapid 2021 | Warsaw POL | 10.44 | Mihnea Costachi | Giga Quparadze | 0-1 | 48 | Open |
| 1110 | 2021-12-27 | World Rapid 2021 | Warsaw POL | 9.45 | Nikolas Theodorou | Mihnea Costachi | 1/2-1/2 | 85 | Open |
| 1111 | 2021-12-27 | World Rapid 2021 | Warsaw POL | 8.44 | Mihnea Costachi | Alexander Riazantsev | 1/2-1/2 | 79 | Open |
| 1112 | 2021-12-27 | World Rapid 2021 | Warsaw POL | 7.33 | Viktor Erdos | Mihnea Costachi | 1-0 | 68 | Open |
| 1113 | 2021-12-27 | World Rapid 2021 | Warsaw POL | 6.45 | Mihnea Costachi | Jakhongir Vakhidov | 1-0 | 47 | Open |
| 1114 | 2021-12-26 | World Rapid 2021 | Warsaw POL | 5.4 | Mikhail Al. Antipov | Mihnea Costachi | 1/2-1/2 | 78 | Open |
| 1115 | 2021-12-26 | World Rapid 2021 | Warsaw POL | 4.62 | Mihnea Costachi | Pavel Ponkratov | 1-0 | 66 | Open |
| 1116 | 2021-12-26 | World Rapid 2021 | Warsaw POL | 3.51 | Bartosz Socko | Mihnea Costachi | 1-0 | 71 | Open |
| 1117 | 2021-12-26 | World Rapid 2021 | Warsaw POL | 2.51 | Mihnea Costachi | Zahar Efimenko | 1/2-1/2 | 45 | Open |
| 1118 | 2021-12-26 | World Rapid 2021 | Warsaw POL | 1.33 | Alireza Firouzja | Mihnea Costachi | 1/2-1/2 | 46 | Open |
| 1119 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 9 | Azer Mirzoev | Mihnea Costachi | 1/2-1/2 | 57 | Open |
| 1120 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 8 | Carles Diaz Camallonga | Mihnea Costachi | 1-0 | 74 | Open |
| 1121 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 7 | Mihnea Costachi | Gabriel Gaehwiler | 1/2-1/2 | 101 | Open |
| 1122 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 6 | Nikolai Gritsenko | Mihnea Costachi | 0-1 | 52 | Open |
| 1123 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 5 | Mihnea Costachi | Aleksandr Rakhmanov | 0-1 | 47 | Open |
| 1124 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 4 | Dennis Wagner | Mihnea Costachi | 0-1 | 46 | Open |
| 1125 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 3 | Mihnea Costachi | Alexander Khripachenko | 1-0 | 56 | Open |
| 1126 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 2 | Matias Perez Gormaz | Mihnea Costachi | 0-1 | 55 | Open |
| 1127 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 1 | Mihnea Costachi | Dushyant Sharma | 1-0 | 1 | Open |
| 1128 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 11 | Mario Alexis Arias Gaviria | Mihnea Costachi | 1-0 | 37 | Open |
| 1129 | 2021-12-21 | Titled Tuesday 21st Dec | chess.com INT | 10 | Mihnea Costachi | Shyaam Nikhil P | 0-1 | 49 | Open |
| 1130 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 6 | Vladimir Bugayev | Mihnea Costachi | 0-1 | 33 | Open |
| 1131 | 2021-12-07 | Titled Tuesday 7th Dec | chess.com INT | 5 | Mihnea Costachi | Jesper Morch Lauridsen | 1-0 | 38 | Open |
| 1132 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 9 | Mihnea Costachi | Gianmarco Leiva | 0-1 | 32 | Open |
| 1133 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 8 | Rafael Leitao | Mihnea Costachi | 1/2-1/2 | 52 | Open |
| 1134 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 7 | Mihnea Costachi | Konstantin Borsuk | 1/2-1/2 | 67 | Open |
| 1135 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 6 | Stelios Halkias | Mihnea Costachi | 0-1 | 41 | Open |
| 1136 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 5 | Sergei Zhigalko | Mihnea Costachi | 1-0 | 32 | Open |
| 1137 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 4 | Mihnea Costachi | Valery Sviridov | 1/2-1/2 | 68 | Open |
| 1138 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 3 | Mihnea Costachi | Janko Radovic | 1-0 | 51 | Open |
| 1139 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 2 | Myhajlo Pliukha | Mihnea Costachi | 0-1 | 38 | Open |
| 1140 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 1 | Mihnea Costachi | Ekaterina Nasyrova | 1-0 | 49 | Open |
| 1141 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 11 | Mihnea Costachi | Gabriel Gaehwiler | 0-1 | 88 | Open |
| 1142 | 2021-11-30 | Titled Tuesday 30th Nov | chess.com INT | 10 | Antonio Arencibia Monduy | Mihnea Costachi | 0-1 | 62 | Open |
| 1143 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 9 | Hampus Sorensen | Mihnea Costachi | 1/2-1/2 | 79 | Open |
| 1144 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 8 | Mihnea Costachi | Dominik Horvath | 0-1 | 48 | Open |
| 1145 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 7 | Mihnea Costachi | German Spata | 1-0 | 45 | Open |
| 1146 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 6 | Olexandr Bortnyk | Mihnea Costachi | 1-0 | 54 | Open |
| 1147 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 5 | Mihnea Costachi | Wilver Vargas Rodriguez | 1-0 | 55 | Open |
| 1148 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 4 | Arseniy Nesterov | Mihnea Costachi | 1-0 | 71 | Open |
| 1149 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 3 | Jindrich Kuba | Mihnea Costachi | 0-1 | 52 | Open |
| 1150 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 2 | Mihnea Costachi | Daniil Postnikov | 1-0 | 33 | Open |
| 1151 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 1 | Ketevan Arakhamia-Grant | Mihnea Costachi | 0-1 | 32 | Open |
| 1152 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 11 | Mihnea Costachi | Matias Perez Gormaz | 1-0 | 67 | Open |
| 1153 | 2021-11-23 | Titled Tuesday 23rd Nov | chess.com INT | 10 | Mihnea Costachi | Andrii Punin | 1-0 | 41 | Open |
| 1154 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 9 | Andrii Punin | Mihnea Costachi | 1-0 | 59 | Open |
| 1155 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 8 | Mihnea Costachi | Michel Alejandro Diaz Perez | 1-0 | 39 | Open |
| 1156 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 7 | Oleg Kislov | Mihnea Costachi | 1-0 | 44 | Open |
| 1157 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 6 | Mihnea Costachi | Danila Bilan | 1-0 | 20 | Open |
| 1158 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 5 | Mykola Bodnar | Mihnea Costachi | 1-0 | 59 | Open |
| 1159 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 4 | Mihnea Costachi | David Paravyan | 0-1 | 36 | Open |
| 1160 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 3 | Veronika Shubenkova | Mihnea Costachi | 0-1 | 54 | Open |
| 1161 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 2 | Mihnea Costachi | Wojciech Przybylski | 1-0 | 102 | Open |
| 1162 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 1 | Ansh M Shah | Mihnea Costachi | 0-1 | 23 | Open |
| 1163 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 11 | Adrian Soderstrom | Mihnea Costachi | 0-1 | 25 | Open |
| 1164 | 2021-11-16 | Titled Tuesday 16th Nov | chess.com INT | 10 | Mihnea Costachi | Rout Padmini | 1/2-1/2 | 65 | Open |
| 1165 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 9 | Mihnea Costachi | Ahmed Adly | 1/2-1/2 | 37 | Open |
| 1166 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 8 | Murad Ibrahimli | Mihnea Costachi | 1-0 | 76 | Open |
| 1167 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 7 | Mihnea Costachi | Parham Maghsoodloo | 1-0 | 57 | Open |
| 1168 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 6 | Ahmad Ahmadzada | Mihnea Costachi | 0-1 | 34 | Open |
| 1169 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 5 | Simon Thorhallsson | Mihnea Costachi | 0-1 | 19 | Open |
| 1170 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 4 | Mihnea Costachi | Erdni Urjubdshzirov | 1-0 | 49 | Open |
| 1171 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 3 | Mihnea Costachi | Baadur Jobava | 0-1 | 33 | Open |
| 1172 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 2 | Enzo Federzoni | Mihnea Costachi | 0-1 | 28 | Open |
| 1173 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 1 | Mihnea Costachi | Ekaterini Pavlidou | 1-0 | 45 | Open |
| 1174 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 11 | V Pranav | Mihnea Costachi | 0-1 | 59 | Open |
| 1175 | 2021-11-09 | Titled Tuesday 9th Nov | chess.com INT | 10 | Ivan Yeletsky | Mihnea Costachi | 0-1 | 43 | Open |
| 1176 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 9 | Mihnea Costachi | Christian Stevens | 1-0 | 30 | Open |
| 1177 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 8 | Julian Estrada Nieto | Mihnea Costachi | 0-1 | 46 | Open |
| 1178 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 7 | Mihnea Costachi | Olga Karavaeva | 1-0 | 32 | Open |
| 1179 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 6 | Dawid Czerw | Mihnea Costachi | 1-0 | 83 | Open |
| 1180 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 5 | Barthelemy Bongo Akanga Ndjila | Mihnea Costachi | 0-1 | 53 | Open |
| 1181 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 4 | Mihnea Costachi | Volodymyr Vusatiuk | 0-1 | 46 | Open |
| 1182 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 3 | Mihnea Costachi | Sachdev Tania | 0-1 | 62 | Open |
| 1183 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 2 | Marko Srebrnic | Mihnea Costachi | 1-0 | 53 | Open |
| 1184 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 1 | Mihnea Costachi | Anna Gvanceladze | 1-0 | 45 | Open |
| 1185 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 11 | Mikhail Golubev | Mihnea Costachi | 0-1 | 59 | Open |
| 1186 | 2021-11-02 | Titled Tuesday 2nd Nov | chess.com INT | 10 | Vladimir Goncharov | Mihnea Costachi | 0-1 | 40 | Open |
| 1187 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 9 | Mihnea Costachi | Ronan Le Goff | 1-0 | 39 | Open |
| 1188 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 8 | Abhijeet Gupta | Mihnea Costachi | 1-0 | 52 | Open |
| 1189 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 7 | Mihnea Costachi | Raunak Sadhwani | 1-0 | 60 | Open |
| 1190 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 6 | Codrut-Constantin Florescu | Mihnea Costachi | 0-1 | 37 | Open |
| 1191 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 5 | Mihnea Costachi | Medet Dzhaparov | 1/2-1/2 | 97 | Open |
| 1192 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 4 | Ivan Yeletsky | Mihnea Costachi | 1-0 | 44 | Open |
| 1193 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 3 | Mihnea Costachi | Renzo Jhonathan Rengifo Blancas | 1-0 | 32 | Open |
| 1194 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 2 | Michel Coto Mederos | Mihnea Costachi | 0-1 | 34 | Open |
| 1195 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 1 | Mihnea Costachi | Vitaly Rodchenkov | 1-0 | 29 | Open |
| 1196 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 11 | Valerio Carnicelli | Mihnea Costachi | 0-1 | 61 | Open |
| 1197 | 2021-10-26 | Titled Tuesday 26th Oct | chess.com INT | 10 | Mihnea Costachi | Gata Kamsky | 1/2-1/2 | 60 | Open |
| 1198 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 9 | Mihnea Costachi | Gaston Manuel Martin Carmona | 1-0 | 30 | Open |
| 1199 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 8 | Alejandro Garcia Garcia | Mihnea Costachi | 0-1 | 41 | Open |
| 1200 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 7 | Mihnea Costachi | Sergei Ljukin | 1-0 | 20 | Open |
| 1201 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 6 | Viktor Maksimenko | Mihnea Costachi | 1-0 | 43 | Open |
| 1202 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 5 | Mihnea Costachi | Nicolas Brunner | 1-0 | 38 | Open |
| 1203 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 4 | Cengiz Hasman | Mihnea Costachi | 1-0 | 41 | Open |
| 1204 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 3 | Mihnea Costachi | Rustam Khusnutdinov | 0-1 | 71 | Open |
| 1205 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 2 | Aron Pasti | Mihnea Costachi | 0-1 | 48 | Open |
| 1206 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 1 | Mihnea Costachi | Jesus Marcial Torres Cueto | 1-0 | 22 | Open |
| 1207 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 11 | Artem Odegov | Mihnea Costachi | 1-0 | 71 | Open |
| 1208 | 2021-10-12 | Titled Tuesday 12th Oct | chess.com INT | 10 | Mihnea Costachi | Andres Carlos Obregon | 0-1 | 73 | Open |
| 1209 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 9 | Mihnea Costachi | Khanya Mazibuko | 0-1 | 56 | Open |
| 1210 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 8 | Aran Kohler | Mihnea Costachi | 0-1 | 56 | Open |
| 1211 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 11 | Mihnea Costachi | Marcel Winkels | 1-0 | 43 | Open |
| 1212 | 2021-10-05 | Titled Tuesday 5th Oct | chess.com INT | 10 | Alex Jian | Mihnea Costachi | 0-1 | 59 | Open |
| 1213 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 9 | Artem Sadovsky | Mihnea Costachi | 1-0 | 76 | Open |
| 1214 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 8 | Mihnea Costachi | Vladislav Kovalev | 0-1 | 40 | Open |
| 1215 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 7 | Samuel Sevian | Mihnea Costachi | 1-0 | 40 | Open |
| 1216 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 6 | Mihnea Costachi | Arystanbek Urazayev | 1-0 | 41 | Open |
| 1217 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 5 | Mihnea Costachi | Artur Gabrielian | 1-0 | 61 | Open |
| 1218 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 4 | Volodymyr Onyshchuk | Mihnea Costachi | 1-0 | 54 | Open |
| 1219 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 3 | Igor Lysyj | Mihnea Costachi | 0-1 | 69 | Open |
| 1220 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 2 | Mihnea Costachi | Jeffery Xiong | 1-0 | 33 | Open |
| 1221 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 1 | Daniel Shapiro | Mihnea Costachi | 0-1 | 46 | Open |
| 1222 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 11 | Wojciech Przybylski | Mihnea Costachi | 0-1 | 25 | Open |
| 1223 | 2021-09-28 | Titled Tuesday 28th Sept | chess.com INT | 10 | Mihnea Costachi | Vitaly Rodchenkov | 1-0 | 46 | Open |
| 1224 | 2021-09-21 | Titled Tuesday 21st Sept | chess.com INT | 8 | Anastasios Pavlidis | Mihnea Costachi | 0-1 | 0 | Open |
| 1225 | 2021-09-21 | Titled Tuesday 21st Sept | chess.com INT | 7 | Mihnea Costachi | Lile Koridze | 0-1 | 17 | Open |
| 1226 | 2021-09-21 | Titled Tuesday 21st Sept | chess.com INT | 6 | Mihnea Costachi | Pawel Dudzinski | 1/2-1/2 | 91 | Open |
| 1227 | 2021-09-21 | Titled Tuesday 21st Sept | chess.com INT | 5 | Alexandre Bouget | Mihnea Costachi | 0-1 | 25 | Open |
| 1228 | 2021-09-21 | Titled Tuesday 21st Sept | chess.com INT | 4 | Mihnea Costachi | Aron Pasti | 0-1 | 28 | Open |
| 1229 | 2021-09-21 | Titled Tuesday 21st Sept | chess.com INT | 3 | Mihnea Costachi | Sergey Kim | 1-0 | 34 | Open |
| 1230 | 2021-09-21 | Titled Tuesday 21st Sept | chess.com INT | 2 | Dmitry Andreikin | Mihnea Costachi | 1-0 | 33 | Open |
| 1231 | 2021-09-21 | Titled Tuesday 21st Sept | chess.com INT | 1 | Artak Manukian | Mihnea Costachi | 0-1 | 52 | Open |
| 1232 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 9 | Bianka Havanecz | Mihnea Costachi | 1-0 | 48 | Open |
| 1233 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 8 | Mihnea Costachi | Alexandre Qashashvili | 1/2-1/2 | 45 | Open |
| 1234 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 7 | Paul-Cristian Rusan | Mihnea Costachi | 0-1 | 57 | Open |
| 1235 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 6 | Mihnea Costachi | Henryk Seifert | 0-1 | 55 | Open |
| 1236 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 5 | Bernardo Cesar Maestre | Mihnea Costachi | 1-0 | 36 | Open |
| 1237 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 4 | Mihnea Costachi | Aaron Bendayan Claros | 0-1 | 84 | Open |
| 1238 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 3 | Shahin Mohandesi | Mihnea Costachi | 0-1 | 59 | Open |
| 1239 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 2 | Mihnea Costachi | Sandi Stojanovski | 1/2-1/2 | 76 | Open |
| 1240 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 1 | Sergey Slugin | Mihnea Costachi | 1-0 | 86 | Open |
| 1241 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 11 | Mihnea Costachi | Ekaterini Pavlidou | 1-0 | 29 | Open |
| 1242 | 2021-09-14 | Titled Tuesday 14th Sept | chess.com INT | 10 | Mihnea Costachi | Alvaro Donatti | 1-0 | 48 | Open |
| 1243 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 9 | Mihnea Costachi | Deep Sengupta | 0-1 | 65 | Open |
| 1244 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 8 | Nana Dzagnidze | Mihnea Costachi | 1-0 | 41 | Open |
| 1245 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 7 | Mihnea Costachi | Ilja Derjabin | 1-0 | 54 | Open |
| 1246 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 6 | Sergey Nefedov | Mihnea Costachi | 0-1 | 39 | Open |
| 1247 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 5 | Mihnea Costachi | Guenther Wachinger | 1-0 | 42 | Open |
| 1248 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 4 | Ward Al-Tarboush | Mihnea Costachi | 1-0 | 92 | Open |
| 1249 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 3 | Mihnea Costachi | Miguel Antonio Neto Silva | 1-0 | 36 | Open |
| 1250 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 2 | Gulrukhbegim Tokhirjonova | Mihnea Costachi | 1-0 | 68 | Open |
| 1251 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 1 | Mihnea Costachi | Pawel Dudzinski | 1-0 | 50 | Open |
| 1252 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 11 | Mihnea Costachi | Alexandra Obolentseva | 1-0 | 8 | Open |
| 1253 | 2021-08-31 | Titled Tuesday 31st Aug | chess.com INT | 10 | Mohamed Ezat | Mihnea Costachi | 1-0 | 28 | Open |
| 1254 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 9 | Artyom Timofeev | Mihnea Costachi | 1-0 | 58 | Open |
| 1255 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 8 | Mikita Mayorau | Mihnea Costachi | 0-1 | 57 | Open |
| 1256 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 7 | Mihnea Costachi | Rasmus Svane | 0-1 | 81 | Open |
| 1257 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 6 | Altay Eynullayev | Mihnea Costachi | 0-1 | 33 | Open |
| 1258 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 5 | Mihnea Costachi | Matias Perez Gormaz | 1-0 | 53 | Open |
| 1259 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 4 | Dmitry Andreikin | Mihnea Costachi | 1-0 | 35 | Open |
| 1260 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 3 | Mihnea Costachi | Aref Vasli | 1-0 | 24 | Open |
| 1261 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 2 | Volodymyr Yaniuk | Mihnea Costachi | 0-1 | 34 | Open |
| 1262 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 1 | Mihnea Costachi | Artyom Manukyan | 1-0 | 23 | Open |
| 1263 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 11 | Mihnea Costachi | Renier Castellanos Rodriguez | 1-0 | 59 | Open |
| 1264 | 2021-08-24 | Titled Tuesday 24th Aug | chess.com INT | 10 | Mihnea Costachi | Pawel Kowalczyk | 0-1 | 40 | Open |
| 1265 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 9 | Mihnea Costachi | Vladimir Goncharov | 1-0 | 23 | Open |
| 1266 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 8 | Luca Jr Moroni | Mihnea Costachi | 1-0 | 37 | Open |
| 1267 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 7 | Sachdev Tania | Mihnea Costachi | 0-1 | 38 | Open |
| 1268 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 6 | Mihnea Costachi | Dawid Janaszak | 1-0 | 68 | Open |
| 1269 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 5 | Haque Nayem | Mihnea Costachi | 0-1 | 43 | Open |
| 1270 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 4 | Mihnea Costachi | Arthur Muromtsev | 1-0 | 19 | Open |
| 1271 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 3 | Bahadur Khodzhamkuliev | Mihnea Costachi | 1-0 | 43 | Open |
| 1272 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 2 | Mihnea Costachi | Max N Turner | 0-1 | 39 | Open |
| 1273 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 1 | Jan Marn | Mihnea Costachi | 0-1 | 30 | Open |
| 1274 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 11 | Yuriy Kuzubov | Mihnea Costachi | 1-0 | 65 | Open |
| 1275 | 2021-08-17 | Titled Tuesday 17th Aug | chess.com INT | 10 | Mihnea Costachi | Vitaly Rodchenkov | 1-0 | 52 | Open |
| 1276 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 9 | Murad Ibrahimli | Mihnea Costachi | 1-0 | 53 | Open |
| 1277 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 8 | Daniil Lintchevski | Mihnea Costachi | 1/2-1/2 | 65 | Open |
| 1278 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 7 | Mihnea Costachi | Vladislav Kovalev | 1-0 | 38 | Open |
| 1279 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 6 | Sergei Zhigalko | Mihnea Costachi | 1/2-1/2 | 60 | Open |
| 1280 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 5 | Vladimir Mikhalsky | Mihnea Costachi | 0-1 | 47 | Open |
| 1281 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 4 | Mihnea Costachi | Diego Saul Rodri Flores Quillas | 1-0 | 57 | Open |
| 1282 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 3 | Wojciech Przybylski | Mihnea Costachi | 0-1 | 60 | Open |
| 1283 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 2 | Mihnea Costachi | Juan Rottenwohrer Suarez | 0-1 | 69 | Open |
| 1284 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 1 | Zbigniew Wieczorek | Mihnea Costachi | 0-1 | 29 | Open |
| 1285 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 11 | Mihnea Costachi | Abhijeet Gupta | 1/2-1/2 | 73 | Open |
| 1286 | 2021-08-10 | Titled Tuesday 10th Aug | chess.com INT | 10 | Mihnea Costachi | Cristi Machidon | 1-0 | 43 | Open |
| 1287 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 9 | Mihnea Costachi | Sergei Zhigalko | 1-0 | 54 | Open |
| 1288 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 8 | Rasmus Svane | Mihnea Costachi | 0-1 | 47 | Open |
| 1289 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 7 | Mihnea Costachi | Dmitry Goltsev | 1-0 | 61 | Open |
| 1290 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 6 | Mihnea Costachi | Harsha Bharathakoti | 1-0 | 32 | Open |
| 1291 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 5 | Vladislav Puchka | Mihnea Costachi | 0-1 | 37 | Open |
| 1292 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 4 | Mihnea Costachi | Sergey D. Rodchenkov | 1-0 | 33 | Open |
| 1293 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 3 | Mihnea Costachi | Nikolay Ogloblin | 1/2-1/2 | 81 | Open |
| 1294 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 2 | Olexandr Bortnyk | Mihnea Costachi | 1-0 | 43 | Open |
| 1295 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 1 | Vladimir Bugayev | Mihnea Costachi | 0-1 | 50 | Open |
| 1296 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 11 | Mihnea Costachi | Alexey Sarana | 0-1 | 67 | Open |
| 1297 | 2021-08-03 | Titled Tuesday 3rd Aug | chess.com INT | 10 | Giga Quparadze | Mihnea Costachi | 1-0 | 50 | Open |
| 1298 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 9 | Lorenzo Lodici | Mihnea Costachi | 0-1 | 48 | Open |
| 1299 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 8 | Shukhrat Makhmudov | Mihnea Costachi | 0-1 | 53 | Open |
| 1300 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 7 | Mihnea Costachi | Cem Kaan Gokerkan | 0-1 | 46 | Open |
| 1301 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 6 | Alexey Maly | Mihnea Costachi | 0-1 | 87 | Open |
| 1302 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 5 | Evgeny V. Melikhov | Mihnea Costachi | 0-1 | 25 | Open |
| 1303 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 4 | Mihnea Costachi | Maksim Tsaruk | 0-1 | 75 | Open |
| 1304 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 3 | Mihnea Costachi | Mark Dejmek | 1-0 | 52 | Open |
| 1305 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 2 | Novendra Priasmoro | Mihnea Costachi | 1-0 | 66 | Open |
| 1306 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 1 | John Duneas | Mihnea Costachi | 0-1 | 37 | Open |
| 1307 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 11 | Rodrigo Vasquez Schroeder | Mihnea Costachi | 0-1 | 36 | Open |
| 1308 | 2021-07-27 | Titled Tuesday 27th July | chess.com INT | 10 | Mihnea Costachi | Evgeny Sapunov | 1-0 | 29 | Open |
| 1309 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 9 | Artak Manukian | Mihnea Costachi | 0-1 | 45 | Open |
| 1310 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 8 | Mihnea Costachi | Irina Petrova | 1-0 | 61 | Open |
| 1311 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 7 | Vladislav Onufrienko | Mihnea Costachi | 1-0 | 34 | Open |
| 1312 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 6 | Elzbieta Vine | Mihnea Costachi | 0-1 | 28 | Open |
| 1313 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 5 | Mihnea Costachi | Ryan W Porter | 0-1 | 30 | Open |
| 1314 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 4 | Georgina Libertad Castellanos Hernandez | Mihnea Costachi | 0-1 | 43 | Open |
| 1315 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 3 | Mihnea Costachi | 2056836 | 0-1 | 84 | Open |
| 1316 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 2 | Ruben Akhayan | Mihnea Costachi | 1/2-1/2 | 71 | Open |
| 1317 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 1 | Mihnea Costachi | Wellington S. Albuquerque Junior | 0-1 | 85 | Open |
| 1318 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 11 | Mihnea Costachi | Nitai Leve | 0-1 | 18 | Open |
| 1319 | 2021-07-20 | Titled Tuesday 20th July | chess.com INT | 10 | Mihnea Costachi | Julian Estrada Nieto | 1-0 | 34 | Open |
| 1320 | 2021-07-13 | Titled Tuesday 13th July | chess.com INT | 9 | Mihnea Costachi | Murad Ibrahimli | 0-1 | 37 | Open |
| 1321 | 2021-07-13 | Titled Tuesday 13th July | chess.com INT | 8 | Mihnea Costachi | Viacheslav Rozhkov | 1-0 | 23 | Open |
| 1322 | 2021-07-13 | Titled Tuesday 13th July | chess.com INT | 7 | Gerardo Antonio Gracia Alvarez | Mihnea Costachi | 0-1 | 26 | Open |
| 1323 | 2021-07-13 | Titled Tuesday 13th July | chess.com INT | 6 | Mihnea Costachi | Ivan Yeletsky | 0-1 | 52 | Open |
| 1324 | 2021-07-13 | Titled Tuesday 13th July | chess.com INT | 5 | Sai Nirupama Kotepalli | Mihnea Costachi | 1/2-1/2 | 60 | Open |
| 1325 | 2021-07-13 | Titled Tuesday 13th July | chess.com INT | 4 | Mihnea Costachi | Catalin-Lucian Patrascu | 1-0 | 53 | Open |
| 1326 | 2021-07-13 | Titled Tuesday 13th July | chess.com INT | 3 | Mihnea Costachi | Fabian Ernesto Vivas Zamora | 1-0 | 31 | Open |
| 1327 | 2021-07-13 | Titled Tuesday 13th July | chess.com INT | 2 | Daniel 1980 Lopez Gonzalez | Mihnea Costachi | 0-1 | 30 | Open |
| 1328 | 2021-07-13 | Titled Tuesday 13th July | chess.com INT | 11 | Mihnea Costachi | Atousa Pourkashiyan | 1-0 | 70 | Open |
| 1329 | 2021-07-13 | Titled Tuesday 13th July | chess.com INT | 10 | Slaven Pastar | Mihnea Costachi | 0-1 | 36 | Open |
| 1330 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 9 | Mihnea Costachi | Onno Elgersma | 1-0 | 40 | Open |
| 1331 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 8 | Mihnea Costachi | Ariel Tokman | 1-0 | 25 | Open |
| 1332 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 7 | Krishnan P. Saravana | Mihnea Costachi | 1-0 | 29 | Open |
| 1333 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 6 | Mihnea Costachi | Ivan Kubatko | 1-0 | 64 | Open |
| 1334 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 5 | Sergey Kim | Mihnea Costachi | 0-1 | 54 | Open |
| 1335 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 4 | Mihnea Costachi | Lile Koridze | 1-0 | 44 | Open |
| 1336 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 3 | Pedro Ramon Martinez Reyes | Mihnea Costachi | 1-0 | 14 | Open |
| 1337 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 2 | Mihnea Costachi | Srecko Tosic | 1-0 | 35 | Open |
| 1338 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 1 | Loic Travadon | Mihnea Costachi | 1-0 | 57 | Open |
| 1339 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 11 | Mihnea Costachi | Evgenij Novikov | 0-1 | 18 | Open |
| 1340 | 2021-07-06 | Titled Tuesday 6th July | chess.com INT | 10 | Qing Aun Lee | Mihnea Costachi | 1-0 | 32 | Open |
| 1341 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 9 | Mika Karttunen | Mihnea Costachi | 1-0 | 75 | Open |
| 1342 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 8 | Mihnea Costachi | Ivan Mezentsev | 0-1 | 31 | Open |
| 1343 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 7 | Stefan Mazur | Mihnea Costachi | 0-1 | 37 | Open |
| 1344 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 6 | Mihnea Costachi | Erik Ronka | 1-0 | 72 | Open |
| 1345 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 5 | Javier Marchena Hurtado | Mihnea Costachi | 0-1 | 41 | Open |
| 1346 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 4 | Mihnea Costachi | Paul-Cristian Rusan | 1-0 | 51 | Open |
| 1347 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 1 | Jason Lu | Mihnea Costachi | 1/2-1/2 | 115 | Open |
| 1348 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 11 | Mihnea Costachi | Mihnea-Ionut Ognean | 1-0 | 46 | Open |
| 1349 | 2021-06-22 | Titled Tuesday 22nd June | chess.com INT | 10 | Mihnea Costachi | Divya Deshmukh | 1-0 | 61 | Open |
| 1350 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 9 | Mihnea Costachi | Karina Ambartsumova | 1-0 | 45 | Open |
| 1351 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 8 | Simon K Williams | Mihnea Costachi | 1-0 | 72 | Open |
| 1352 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 7 | Mihnea Costachi | Dmitrij Kollars | 0-1 | 67 | Open |
| 1353 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 6 | Mihnea Costachi | Ivan Aldokhin | 1-0 | 29 | Open |
| 1354 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 5 | Aleksandr Kholin | Mihnea Costachi | 0-1 | 33 | Open |
| 1355 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 4 | Gata Kamsky | Mihnea Costachi | 1-0 | 38 | Open |
| 1356 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 3 | Mihnea Costachi | Tuna Ozates | 1-0 | 46 | Open |
| 1357 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 2 | Rene Humberto Perera Alfonso | Mihnea Costachi | 1/2-1/2 | 80 | Open |
| 1358 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 1 | Mihnea Costachi | Sophie Morris-Suzuki | 1-0 | 79 | Open |
| 1359 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 11 | Elvira Berend | Mihnea Costachi | 0-1 | 43 | Open |
| 1360 | 2021-06-15 | Titled Tuesday 15th June | chess.com INT | 10 | Aaron Jacobson | Mihnea Costachi | 1-0 | 63 | Open |
| 1361 | 2021-06-08 | Titled Tuesday 8th June | chess.com INT | 9 | Mihnea Costachi | Kevin Noboa Silva | 1-0 | 30 | Open |
| 1362 | 2021-06-08 | Titled Tuesday 8th June | chess.com INT | 8 | Erik Ronka | Mihnea Costachi | 1-0 | 36 | Open |
| 1363 | 2021-06-08 | Titled Tuesday 8th June | chess.com INT | 7 | Mihnea Costachi | Daniel Garcia Ramos | 0-1 | 33 | Open |
| 1364 | 2021-06-08 | Titled Tuesday 8th June | chess.com INT | 6 | Renato Terry | Mihnea Costachi | 1-0 | 36 | Open |
| 1365 | 2021-06-08 | Titled Tuesday 8th June | chess.com INT | 5 | Dmitry Vyatkin | Mihnea Costachi | 0-1 | 52 | Open |
| 1366 | 2021-06-08 | Titled Tuesday 8th June | chess.com INT | 4 | Mihnea Costachi | Gulrukhbegim Tokhirjonova | 1-0 | 39 | Open |
| 1367 | 2021-06-08 | Titled Tuesday 8th June | chess.com INT | 3 | Alex Garrido Outon | Mihnea Costachi | 0-1 | 58 | Open |
| 1368 | 2021-06-08 | Titled Tuesday 8th June | chess.com INT | 1 | Dejan Brankovic | Mihnea Costachi | 0-1 | 51 | Open |
| 1369 | 2021-06-08 | Titled Tuesday 8th June | chess.com INT | 11 | Alua Nurman | Mihnea Costachi | 0-1 | 45 | Open |
| 1370 | 2021-06-08 | Titled Tuesday 8th June | chess.com INT | 10 | Mihnea Costachi | Andriy Prydun | 0-1 | 63 | Open |
| 1371 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 9 | Nataliya Buksa | Mihnea Costachi | 0-1 | 61 | Open |
| 1372 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 8 | Mihnea Costachi | Mihnea-Ionut Ognean | 1-0 | 43 | Open |
| 1373 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 7 | Mai Narva | Mihnea Costachi | 1-0 | 39 | Open |
| 1374 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 6 | Maxim Novik | Mihnea Costachi | 0-1 | 49 | Open |
| 1375 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 5 | Mihnea Costachi | Dinara Wagner | 1-0 | 45 | Open |
| 1376 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 4 | Ivan Aldokhin | Mihnea Costachi | 1-0 | 36 | Open |
| 1377 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 3 | Mihnea Costachi | Evgeni Krasilnikov | 1-0 | 31 | Open |
| 1378 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 2 | Zdravko Vukovic | Mihnea Costachi | 1-0 | 40 | Open |
| 1379 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 1 | Mihnea Costachi | Ryan Hamley | 1-0 | 35 | Open |
| 1380 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 11 | Mihnea Costachi | Visakh N R | 0-1 | 60 | Open |
| 1381 | 2021-06-01 | Titled Tuesday 1st June | chess.com INT | 10 | Mihnea Costachi | Viktor Maksimenko | 1-0 | 27 | Open |
| 1382 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 9 | Jose Antonio Herrera Reyes | Mihnea Costachi | 0-1 | 51 | Open |
| 1383 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 8 | Mihnea Costachi | Ervin Ozkan | 1-0 | 35 | Open |
| 1384 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 7 | Mihnea Costachi | Ruslan Gabdushev | 1-0 | 39 | Open |
| 1385 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 6 | Kelvin Antonio Sanchez Alvares | Mihnea Costachi | 1-0 | 67 | Open |
| 1386 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 5 | Mihnea Costachi | Nodirbek Abdusattorov | 0-1 | 43 | Open |
| 1387 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 4 | Mihnea Costachi | Aleksey Sorokin | 1/2-1/2 | 72 | Open |
| 1388 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 3 | Mihnea-Ionut Ognean | Mihnea Costachi | 0-1 | 77 | Open |
| 1389 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 2 | Mihnea Costachi | Alder Escobar Forero | 1-0 | 48 | Open |
| 1390 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 1 | Arman Baradaran | Mihnea Costachi | 0-1 | 22 | Open |
| 1391 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 11 | Mihnea Costachi | Nitish Belurkar | 1-0 | 66 | Open |
| 1392 | 2021-05-25 | Titled Tuesday 25th May | chess.com INT | 10 | Sergei Zhigalko | Mihnea Costachi | 1-0 | 18 | Open |
| 1393 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 9 | Mihnea Costachi | Maksim Chigaev | 1-0 | 43 | Open |
| 1394 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 8 | Ward Al-Tarboush | Mihnea Costachi | 0-1 | 42 | Open |
| 1395 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 7 | Mihnea Costachi | Ermes Espinosa Veloz | 1-0 | 41 | Open |
| 1396 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 6 | Alejandro Barbero Sendic | Mihnea Costachi | 0-1 | 30 | Open |
| 1397 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 5 | Mihnea Costachi | Dmitry Gurevich | 0-1 | 80 | Open |
| 1398 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 4 | Mihnea Costachi | Robert Baskin | 1-0 | 49 | Open |
| 1399 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 3 | Grigoriy Oparin | Mihnea Costachi | 1-0 | 46 | Open |
| 1400 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 2 | Mihnea Costachi | Leo Crevatin | 1-0 | 60 | Open |
| 1401 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 1 | Marcel Beulen | Mihnea Costachi | 0-1 | 19 | Open |
| 1402 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 11 | Elham Amar | Mihnea Costachi | 1-0 | 22 | Open |
| 1403 | 2021-05-18 | Titled Tuesday 18th May | chess.com INT | 10 | Mihnea Costachi | Vahap Sanal | 0-1 | 37 | Open |
| 1404 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 9 | Oleg Orlov | Mihnea Costachi | 0-1 | 34 | Open |
| 1405 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 8 | Mihnea Costachi | Viacheslav Tikhonov | 1/2-1/2 | 55 | Open |
| 1406 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 7 | Mihnea Costachi | Velimir Ivic | 0-1 | 40 | Open |
| 1407 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 6 | Robert Baskin | Mihnea Costachi | 0-1 | 40 | Open |
| 1408 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 5 | Mihnea Costachi | Viacheslav Rozhkov | 1-0 | 41 | Open |
| 1409 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 4 | Daniil Lintchevski | Mihnea Costachi | 1-0 | 63 | Open |
| 1410 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 3 | Mihnea Costachi | Alexandru Calin | 1-0 | 39 | Open |
| 1411 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 2 | Justin Paul | Mihnea Costachi | 1/2-1/2 | 59 | Open |
| 1412 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 1 | Mihnea Costachi | Fabian Ernesto Vivas Zamora | 1-0 | 45 | Open |
| 1413 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 11 | Das Debashis | Mihnea Costachi | 1-0 | 106 | Open |
| 1414 | 2021-05-11 | Titled Tuesday 11th May | chess.com INT | 10 | Mihnea Costachi | Alexey Sarana | 1-0 | 45 | Open |
| 1415 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 9 | Aziz Mert Erdogdu | Mihnea Costachi | 0-1 | 42 | Open |
| 1416 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 8 | Mihnea Costachi | Prithu Gupta | 0-1 | 21 | Open |
| 1417 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 7 | Gregory Shahade | Mihnea Costachi | 0-1 | 40 | Open |
| 1418 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 6 | Mihnea Costachi | Leandro Krysa | 1/2-1/2 | 101 | Open |
| 1419 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 5 | Mihnea Costachi | Giga Quparadze | 0-1 | 62 | Open |
| 1420 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 4 | Ilja Sirosh | Mihnea Costachi | 0-1 | 40 | Open |
| 1421 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 3 | David Kalashian | Mihnea Costachi | 0-1 | 55 | Open |
| 1422 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 2 | Mihnea Costachi | Aaravamudhan Balaji | 1-0 | 48 | Open |
| 1423 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 1 | Sergio Minero Pineda | Mihnea Costachi | 0-1 | 61 | Open |
| 1424 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 11 | Alexander Rustemov | Mihnea Costachi | 0-1 | 142 | Open |
| 1425 | 2021-05-04 | Titled Tuesday 4th May | chess.com INT | 10 | Mihnea Costachi | Garg Aradhya | 1-0 | 69 | Open |
| 1426 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 9 | Ernesto Real De Azua | Mihnea Costachi | 1/2-1/2 | 58 | Open |
| 1427 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 8 | Mihnea Costachi | Alan Pichot | 1-0 | 32 | Open |
| 1428 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 7 | Andrey Esipenko | Mihnea Costachi | 1/2-1/2 | 76 | Open |
| 1429 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 6 | Elshan Moradiabadi | Mihnea Costachi | 0-1 | 59 | Open |
| 1430 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 5 | Mihnea Costachi | Daniel Taboas Rodriguez | 1-0 | 42 | Open |
| 1431 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 4 | Mihnea Costachi | Samvel Ter-Sahakyan | 0-1 | 68 | Open |
| 1432 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 2 | Mihnea Costachi | Jhon David Castaneda | 1-0 | 34 | Open |
| 1433 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 1 | Tobias Lang Nilsen | Mihnea Costachi | 0-1 | 39 | Open |
| 1434 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 11 | Mihnea Costachi | Alexandr Triapishko | 1-0 | 44 | Open |
| 1435 | 2021-04-27 | Titled Tuesday 27th Apr | chess.com INT | 10 | Mihnea Costachi | Sergey Grigoriants | 1-0 | 38 | Open |
| 1436 | 2021-04-20 | Titled Tuesday 20th Apr | chess.com INT | 9 | Gaston Manuel Martin Carmona | Mihnea Costachi | 0-1 | 34 | Open |
| 1437 | 2021-04-20 | Titled Tuesday 20th Apr | chess.com INT | 8 | Mihnea Costachi | Marcin Sieciechowicz | 0-1 | 53 | Open |
| 1438 | 2021-04-20 | Titled Tuesday 20th Apr | chess.com INT | 7 | Johann Hjartarson | Mihnea Costachi | 1-0 | 48 | Open |
| 1439 | 2021-04-20 | Titled Tuesday 20th Apr | chess.com INT | 6 | Mihnea Costachi | Ilja Derjabin | 1-0 | 44 | Open |
| 1440 | 2021-04-20 | Titled Tuesday 20th Apr | chess.com INT | 4 | Mihnea Costachi | David Kalashian | 0-1 | 51 | Open |
| 1441 | 2021-04-20 | Titled Tuesday 20th Apr | chess.com INT | 3 | Jose Remolar Gallen | Mihnea Costachi | 0-1 | 26 | Open |
| 1442 | 2021-04-20 | Titled Tuesday 20th Apr | chess.com INT | 2 | Mihnea Costachi | Nikolaos Spyropoulos | 0-1 | 57 | Open |
| 1443 | 2021-04-20 | Titled Tuesday 20th Apr | chess.com INT | 1 | Fabian Fiorito | Mihnea Costachi | 0-1 | 81 | Open |
| 1444 | 2021-04-20 | Titled Tuesday 20th Apr | chess.com INT | 11 | Juan Cruz Arias | Mihnea Costachi | 0-1 | 42 | Open |
| 1445 | 2021-04-20 | Titled Tuesday 20th Apr | chess.com INT | 10 | Mihnea Costachi | Guillermo Baches Garcia | 1-0 | 54 | Open |
| 1446 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 8 | Ranindu Dilshan Liyanage | Mihnea Costachi | 1/2-1/2 | 81 | Open |
| 1447 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 7 | Mihnea Costachi | Ilja Derjabin | 1-0 | 34 | Open |
| 1448 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 6 | Tuan Minh Le | Mihnea Costachi | 1-0 | 44 | Open |
| 1449 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 5 | Mihnea Costachi | Nikolaos Spyropoulos | 1-0 | 39 | Open |
| 1450 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 4 | Mihnea Costachi | Ivajlo Enchev | 1/2-1/2 | 65 | Open |
| 1451 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 3 | Harry Grieve | Mihnea Costachi | 0-1 | 56 | Open |
| 1452 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 1 | Mihnea Costachi | Wojciech Przybylski | 1/2-1/2 | 63 | Open |
| 1453 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 11 | Mihnea Costachi | Jose Antonio Herrera Reyes | 1-0 | 38 | Open |
| 1454 | 2021-04-13 | Titled Tuesday 13th Apr | chess.com INT | 10 | Aleksandar Indjic | Mihnea Costachi | 1-0 | 62 | Open |
| 1455 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 9 | Mihnea Costachi | Tamas-Kristof Balla | 1-0 | 43 | Open |
| 1456 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 8 | Mihnea Costachi | Nataliya Buksa | 1-0 | 77 | Open |
| 1457 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 7 | Ryan Hamley | Mihnea Costachi | 0-1 | 60 | Open |
| 1458 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 6 | Mihnea Costachi | Michael Klenburg | 0-1 | 90 | Open |
| 1459 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 4 | Jose Eduardo Martinez Alcantara | Mihnea Costachi | 1-0 | 40 | Open |
| 1460 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 3 | Mihnea Costachi | Andrew Titus | 1-0 | 37 | Open |
| 1461 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 2 | Mihnea Costachi | 35010247 | 1-0 | 48 | Open |
| 1462 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 1 | Vinzent Spitzl | Mihnea Costachi | 0-1 | 85 | Open |
| 1463 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 11 | Mihnea Costachi | Noel Studer | 1-0 | 53 | Open |
| 1464 | 2021-04-06 | Titled Tuesday 6th Apr | chess.com INT | 10 | Garg Aradhya | Mihnea Costachi | 0-1 | 36 | Open |
| 1465 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 8 | Aleksandar Indjic | Mihnea Costachi | 1-0 | 33 | Open |
| 1466 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 7 | Mihnea Costachi | Nodirbek Abdusattorov | 0-1 | 31 | Open |
| 1467 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 6 | Mihnea Costachi | Elham Amar | 1-0 | 31 | Open |
| 1468 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 4 | Mihnea Costachi | Vugar Rasulov | 0-1 | 35 | Open |
| 1469 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 3 | Alexey Sarana | Mihnea Costachi | 0-1 | 44 | Open |
| 1470 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 2 | Adrian Gschnitzer | Mihnea Costachi | 0-1 | 48 | Open |
| 1471 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 1 | Mihnea Costachi | Zdravko Vukovic | 1-0 | 30 | Open |
| 1472 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 11 | Noel Studer | Mihnea Costachi | 0-1 | 24 | Open |
| 1473 | 2021-03-30 | Titled Tuesday 30th Mar | chess.com INT | 10 | Hampus Sorensen | Mihnea Costachi | 0-1 | 50 | Open |
| 1474 | 2021-03-28 | European Online CC GpA | Tornelo INT | 8.4 | Valentyn Hulka | Mihnea Costachi | 1/2-1/2 | 26 | Open |
| 1475 | 2021-03-28 | European Online CC GpA | Tornelo INT | 7.2 | Mihnea Costachi | Joachim, Dr. Wintzer | 1-0 | 62 | Open |
| 1476 | 2021-03-28 | European Online CC GpA | Tornelo INT | 6.5 | Attila Istvan Csonka | Mihnea Costachi | 1/2-1/2 | 71 | Open |
| 1477 | 2021-03-27 | European Online CC GpA | Tornelo INT | 4.5 | Mihnea Costachi | Azat Sharafiev | 0-1 | 35 | Open |
| 1478 | 2021-03-27 | European Online CC GpA | Tornelo INT | 3.2 | Arkadij Naiditsch | Mihnea Costachi | 1/2-1/2 | 64 | Open |
| 1479 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 9 | Mihnea Costachi | Mykola Bodnar | 0-1 | 93 | Open |
| 1480 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 8 | Mihnea Costachi | Jose Eduardo Martinez Alcantara | 1/2-1/2 | 119 | Open |
| 1481 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 7 | Olga Babiy | Mihnea Costachi | 0-1 | 28 | Open |
| 1482 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 6 | Tamas Gunes Ongut | Mihnea Costachi | 1/2-1/2 | 39 | Open |
| 1483 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 5 | Mihnea Costachi | Umid Aslanov | 1/2-1/2 | 83 | Open |
| 1484 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 4 | Andrey Esipenko | Mihnea Costachi | 1-0 | 42 | Open |
| 1485 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 3 | Praggnanandhaa R | Mihnea Costachi | 0-1 | 50 | Open |
| 1486 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 2 | Mihnea Costachi | Vinzent Spitzl | 1-0 | 69 | Open |
| 1487 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 1 | Thomas Kahlert | Mihnea Costachi | 0-1 | 35 | Open |
| 1488 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 11 | Mihnea Costachi | Robert Baskin | 1-0 | 63 | Open |
| 1489 | 2021-03-23 | Titled Tuesday 23rd Mar | chess.com INT | 10 | Kamal Aghasiyev | Mihnea Costachi | 1/2-1/2 | 37 | Open |
| 1490 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 9 | Mihnea Costachi | Omran Al Hosani | 0-1 | 35 | Open |
| 1491 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 8 | Jerzy Jesus Perez Leiva | Mihnea Costachi | 1/2-1/2 | 109 | Open |
| 1492 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 7 | Mihnea Costachi | Yamac Samani | 1-0 | 41 | Open |
| 1493 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 6 | Leonardo Valdes Romero | Mihnea Costachi | 1-0 | 37 | Open |
| 1494 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 5 | Mihnea Costachi | Orest Vovk | 1-0 | 34 | Open |
| 1495 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 4 | Harry Grieve | Mihnea Costachi | 1-0 | 30 | Open |
| 1496 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 3 | Mihnea Costachi | Krishnan P. Saravana | 1-0 | 52 | Open |
| 1497 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 2 | Chitlange Sakshi | Mihnea Costachi | 0-1 | 102 | Open |
| 1498 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 1 | Mihnea Costachi | Iulian-Ioan Taras | 0-1 | 42 | Open |
| 1499 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 11 | Niranjan Navalgund | Mihnea Costachi | 0-1 | 47 | Open |
| 1500 | 2021-03-16 | Titled Tuesday 16th Mar | chess.com INT | 10 | Sargis A. Manukyan | Mihnea Costachi | 0-1 | 42 | Open |
| 1501 | 2021-03-13 | 1st FIDE World Uni BlitzB | Tornelo INT | 9.3 | Mihnea Costachi | Marco Delgado Romero | 1-0 | 64 | Open |
| 1502 | 2021-03-13 | 1st FIDE World Uni BlitzB | Tornelo INT | 8.6 | Andre Ventura Sousa | Mihnea Costachi | 0-1 | 35 | Open |
| 1503 | 2021-03-13 | 1st FIDE World Uni BlitzB | Tornelo INT | 7.13 | Mihnea Costachi | Grigorios Drakoulakos | 1-0 | 74 | Open |
| 1504 | 2021-03-13 | 1st FIDE World Uni BlitzB | Tornelo INT | 6.2 | David Villacorta Nicolas | Mihnea Costachi | 0-1 | 31 | Open |
| 1505 | 2021-03-13 | 1st FIDE World Uni BlitzB | Tornelo INT | 5.12 | Mihnea Costachi | Darya Shevchenko | 1/2-1/2 | 99 | Open |
| 1506 | 2021-03-13 | 1st FIDE World Uni BlitzB | Tornelo INT | 4.15 | Suren Gesyan | Mihnea Costachi | 1/2-1/2 | 83 | Open |
| 1507 | 2021-03-13 | 1st FIDE World Uni BlitzB | Tornelo INT | 3.9 | Mihnea Costachi | Zehn Nasir | 1/2-1/2 | 95 | Open |
| 1508 | 2021-03-13 | 1st FIDE World Uni BlitzB | Tornelo INT | 2.11 | Mathys Noir | Mihnea Costachi | 0-1 | 28 | Open |
| 1509 | 2021-03-13 | 1st FIDE World Uni BlitzB | Tornelo INT | 10.2 | Cemil Can Ali Marandi | Mihnea Costachi | 1/2-1/2 | 37 | Open |
| 1510 | 2021-03-13 | 1st FIDE World Uni BlitzB | Tornelo INT | 1.11 | Mihnea Costachi | Brath Toribio Alvarado | 1-0 | 31 | Open |
| 1511 | 2021-03-09 | Titled Tuesday 9th Mar | chess.com INT | 9 | Mihnea Costachi | Elshan Moradiabadi | 0-1 | 60 | Open |
| 1512 | 2021-03-09 | Titled Tuesday 9th Mar | chess.com INT | 8 | Anna M. Sargsyan | Mihnea Costachi | 0-1 | 54 | Open |
| 1513 | 2021-03-09 | Titled Tuesday 9th Mar | chess.com INT | 7 | Mihnea Costachi | Anton Korobov | 0-1 | 30 | Open |
| 1514 | 2021-03-09 | Titled Tuesday 9th Mar | chess.com INT | 6 | Giga Quparadze | Mihnea Costachi | 1-0 | 64 | Open |
| 1515 | 2021-03-09 | Titled Tuesday 9th Mar | chess.com INT | 5 | Mihnea Costachi | Federico Perez Ponsa | 1-0 | 41 | Open |
| 1516 | 2021-03-09 | Titled Tuesday 9th Mar | chess.com INT | 4 | Baadur Jobava | Mihnea Costachi | 0-1 | 37 | Open |
| 1517 | 2021-03-09 | Titled Tuesday 9th Mar | chess.com INT | 3 | Jan Marn | Mihnea Costachi | 0-1 | 24 | Open |
| 1518 | 2021-03-09 | Titled Tuesday 9th Mar | chess.com INT | 2 | Mihnea Costachi | Benjamin Bujisho | 1-0 | 53 | Open |
| 1519 | 2021-03-09 | Titled Tuesday 9th Mar | chess.com INT | 1 | Lisa Schut | Mihnea Costachi | 0-1 | 27 | Open |
| 1520 | 2021-03-09 | Titled Tuesday 9th Mar | chess.com INT | 11 | Mihnea Costachi | Mohamed Ezat | 0-1 | 36 | Open |
| 1521 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 9 | Andrew N Greet | Mihnea Costachi | 1/2-1/2 | 48 | Open |
| 1522 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 8 | Mihnea Costachi | Arda Camlar | 1/2-1/2 | 114 | Open |
| 1523 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 7 | Nils Grandelius | Mihnea Costachi | 1-0 | 51 | Open |
| 1524 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 6 | Mihnea Costachi | Christopher Woojin Yoo | 1-0 | 55 | Open |
| 1525 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 5 | Mihnea Costachi | Ioannis Kalogeris | 1-0 | 37 | Open |
| 1526 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 4 | Tamas-Kristof Balla | Mihnea Costachi | 0-1 | 23 | Open |
| 1527 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 3 | Mihnea Costachi | Oleg Vastrukhin | 0-1 | 34 | Open |
| 1528 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 2 | Mihnea Costachi | Christos Krallis | 1-0 | 61 | Open |
| 1529 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 1 | Iulian-Ioan Taras | Mihnea Costachi | 0-1 | 48 | Open |
| 1530 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 11 | Kosma Pacan-Milej | Mihnea Costachi | 0-1 | 60 | Open |
| 1531 | 2021-03-02 | Titled Tuesday 2nd Mar | chess.com INT | 10 | Mihnea Costachi | Johann Hjartarson | 1-0 | 35 | Open |
| 1532 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 9 | Mihnea Costachi | Nikolaos Spyropoulos | 1-0 | 43 | Open |
| 1533 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 7 | Mihnea Costachi | P Michelle Catherina | 1/2-1/2 | 72 | Open |
| 1534 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 6 | Marc Lonoff | Mihnea Costachi | 0-1 | 30 | Open |
| 1535 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 5 | Mihnea Costachi | Alexey Lizlov | 0-1 | 44 | Open |
| 1536 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 4 | Mihnea Costachi | Leonid Sawlin | 0-1 | 40 | Open |
| 1537 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 3 | Nikolay Ogloblin | Mihnea Costachi | 0-1 | 51 | Open |
| 1538 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 2 | Mihnea Costachi | Rohun Trakru | 1-0 | 28 | Open |
| 1539 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 11 | Mihnea Costachi | Milan Jocev | 1-0 | 88 | Open |
| 1540 | 2021-02-23 | Titled Tuesday 23rd Feb | chess.com INT | 10 | Alina Kashlinskaya | Mihnea Costachi | 1-0 | 55 | Open |
| 1541 | 2021-02-20 | Bunratty 2021 Online | chess.com INT | 9 | David W L Howell | Mihnea Costachi | 1/2-1/2 | 13 | Open |
| 1542 | 2021-02-20 | Bunratty 2021 Online | chess.com INT | 8 | Mihnea Costachi | Richard G Pert | 1-0 | 52 | Open |
| 1543 | 2021-02-20 | Bunratty 2021 Online | chess.com INT | 7 | Ameet K Ghasi | Mihnea Costachi | 0-1 | 42 | Open |
| 1544 | 2021-02-20 | Bunratty 2021 Online | chess.com INT | 6 | Mihnea Costachi | Peter Svidler | 0-1 | 22 | Open |
| 1545 | 2021-02-20 | Bunratty 2021 Online | chess.com INT | 4 | Mihnea Costachi | Tom O`Gorman | 1-0 | 39 | Open |
| 1546 | 2021-02-20 | Bunratty 2021 Online | chess.com INT | 3 | Trisha Kanyamarala | Mihnea Costachi | 0-1 | 31 | Open |
| 1547 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 9 | Mihnea Costachi | Joey Grochal | 1-0 | 22 | Open |
| 1548 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 8 | Garg Aradhya | Mihnea Costachi | 1-0 | 53 | Open |
| 1549 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 7 | Mihnea Costachi | Balazs Csonka | 1/2-1/2 | 31 | Open |
| 1550 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 6 | Nils Grandelius | Mihnea Costachi | 1-0 | 50 | Open |
| 1551 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 5 | Evgenij Shuvalov | Mihnea Costachi | 0-1 | 64 | Open |
| 1552 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 4 | Mihnea Costachi | Anton Korobov | 0-1 | 65 | Open |
| 1553 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 3 | Fabian Fiorito | Mihnea Costachi | 0-1 | 79 | Open |
| 1554 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 2 | Mihnea Costachi | Christos Krallis | 1-0 | 52 | Open |
| 1555 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 1 | Lile Koridze | Mihnea Costachi | 0-1 | 16 | Open |
| 1556 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 11 | Arda Camlar | Mihnea Costachi | 0-1 | 43 | Open |
| 1557 | 2021-02-16 | Titled Tuesday 16th Feb | chess.com INT | 10 | Mihnea Costachi | Vladimir Damjanovic | 1-0 | 43 | Open |
| 1558 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 9 | Alexey Sarana | Mihnea Costachi | 1-0 | 98 | Open |
| 1559 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 8 | Mohamed Ezat | Mihnea Costachi | 0-1 | 56 | Open |
| 1560 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 7 | Mihnea Costachi | Grayson Rorrer | 1-0 | 48 | Open |
| 1561 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 6 | Renato Terry | Mihnea Costachi | 1-0 | 74 | Open |
| 1562 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 5 | Mihnea Costachi | Novendra Priasmoro | 0-1 | 51 | Open |
| 1563 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 4 | Pavel Eljanov | Mihnea Costachi | 0-1 | 32 | Open |
| 1564 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 3 | Mihnea Costachi | Tuan Minh Le | 1/2-1/2 | 58 | Open |
| 1565 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 2 | Sargis V. Manukyan | Mihnea Costachi | 0-1 | 40 | Open |
| 1566 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 1 | Mihnea Costachi | Malak Ismayil | 1-0 | 51 | Open |
| 1567 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 11 | Tangi Migot | Mihnea Costachi | 0-1 | 57 | Open |
| 1568 | 2021-02-09 | Titled Tuesday 9th Feb | chess.com INT | 10 | Mihnea Costachi | Nikolai Vlassov | 0-1 | 56 | Open |
| 1569 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 9 | Mihnea Costachi | Dmitry Kononenko | 1-0 | 57 | Open |
| 1570 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 8 | Abdulla Gadimbayli | Mihnea Costachi | 1-0 | 50 | Open |
| 1571 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 6 | Alexandr Fier | Mihnea Costachi | 1-0 | 54 | Open |
| 1572 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 5 | Mihnea Costachi | Alejandro Domingo Nunez | 1-0 | 52 | Open |
| 1573 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 4 | Yahli Sokolovsky | Mihnea Costachi | 0-1 | 54 | Open |
| 1574 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 3 | Mihnea Costachi | Renato Terry | 0-1 | 52 | Open |
| 1575 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 2 | Mihnea Costachi | Juan Sebastian Melian | 1-0 | 21 | Open |
| 1576 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 11 | Mihnea Costachi | Aleksei Pridorozhni | 0-1 | 86 | Open |
| 1577 | 2021-02-02 | Titled Tuesday 2nd Feb | chess.com INT | 10 | Ido Ben Artzi | Mihnea Costachi | 0-1 | 59 | Open |
| 1578 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 9 | Gerardo Antonio Gracia Alvarez | Mihnea Costachi | 0-1 | 26 | Open |
| 1579 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 8 | Dawid Janaszak | Mihnea Costachi | 0-1 | 34 | Open |
| 1580 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 7 | Mihnea Costachi | Mikhail Golubev | 0-1 | 21 | Open |
| 1581 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 6 | Tomas Kapitanchuk | Mihnea Costachi | 0-1 | 62 | Open |
| 1582 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 5 | Mihnea Costachi | Evan S Rosenberg | 1-0 | 36 | Open |
| 1583 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 3 | Mihnea Costachi | Leo Crevatin | 0-1 | 46 | Open |
| 1584 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 2 | Mihnea Costachi | Viacheslav Tikhonov | 0-1 | 30 | Open |
| 1585 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 1 | Yahor Silich | Mihnea Costachi | 1/2-1/2 | 61 | Open |
| 1586 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 11 | Mihnea Costachi | Shawn Rodrigue-Lemieux | 1-0 | 37 | Open |
| 1587 | 2021-01-26 | Titled Tuesday 26th Jan | chess.com INT | 10 | Mihnea Costachi | Atilla Eynullayev | 1-0 | 38 | Open |
| 1588 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 9 | Grigory Gusarov | Mihnea Costachi | 1-0 | 56 | Open |
| 1589 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 8 | Mihnea Costachi | Damian Lewtak | 1-0 | 60 | Open |
| 1590 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 7 | Ori Taichman | Mihnea Costachi | 0-1 | 26 | Open |
| 1591 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 6 | Mihnea Costachi | Artak Manukian | 1-0 | 55 | Open |
| 1592 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 5 | Tamas-Kristof Balla | Mihnea Costachi | 1/2-1/2 | 67 | Open |
| 1593 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 4 | Mihnea Costachi | Ilyass Msellek | 0-1 | 52 | Open |
| 1594 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 3 | Dawid Janaszak | Mihnea Costachi | 0-1 | 39 | Open |
| 1595 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 2 | Mukhiddin Madaminov | Mihnea Costachi | 1-0 | 60 | Open |
| 1596 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 1 | Mihnea Costachi | Umut Ata Akbas | 1-0 | 48 | Open |
| 1597 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 11 | Mihnea Costachi | Vladimir Goncharov | 0-1 | 29 | Open |
| 1598 | 2021-01-19 | Titled Tuesday 19th Jan | chess.com INT | 10 | Mihnea Costachi | Petro Golubka | 0-1 | 86 | Open |
| 1599 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 8 | Mihnea Costachi | Pablo Barrionuevo | 0-1 | 31 | Open |
| 1600 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 7 | Teodor Anton | Mihnea Costachi | 1-0 | 44 | Open |
| 1601 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 6 | Sherif Khater | Mihnea Costachi | 1-0 | 40 | Open |
| 1602 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 5 | Mihnea Costachi | Ashot Parvanyan | 1-0 | 54 | Open |
| 1603 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 4 | Kosma Pacan-Milej | Mihnea Costachi | 1-0 | 43 | Open |
| 1604 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 3 | Mihnea Costachi | Nameer Issani | 0-1 | 39 | Open |
| 1605 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 2 | Mihnea Costachi | Noam Aviv Vitenberg | 1-0 | 43 | Open |
| 1606 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 11 | Mihnea Costachi | Galina Novikova | 1-0 | 44 | Open |
| 1607 | 2021-01-12 | Titled Tuesday 12th Jan | chess.com INT | 10 | Han Schut | Mihnea Costachi | 0-1 | 35 | Open |
| 1608 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 9 | Mihnea Costachi | Alexander Gelman | 1-0 | 36 | Open |
| 1609 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 8 | Lela Javakhishvili | Mihnea Costachi | 0-1 | 44 | Open |
| 1610 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 7 | Mihnea Costachi | Kristof Juhasz | 1/2-1/2 | 57 | Open |
| 1611 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 6 | Alexey Mokshanov | Mihnea Costachi | 1-0 | 34 | Open |
| 1612 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 5 | Mihnea Costachi | Georg Seul | 1-0 | 39 | Open |
| 1613 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 4 | Mihnea Costachi | Josue Araujo Sanchez | 1/2-1/2 | 60 | Open |
| 1614 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 3 | Peter Lizak | Mihnea Costachi | 1-0 | 40 | Open |
| 1615 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 2 | Mihnea Costachi | Geordie Derraugh | 1-0 | 57 | Open |
| 1616 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 1 | Senthil Maran K | Mihnea Costachi | 0-1 | 45 | Open |
| 1617 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 11 | Mihnea Costachi | Ioannis Kalogeris | 1-0 | 11 | Open |
| 1618 | 2020-12-29 | Titled Tuesday 29th Dec | chess.com INT | 10 | Teodora Injac | Mihnea Costachi | 0-1 | 25 | Open |
| 1619 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 7 | German Spata | Mihnea Costachi | 0-1 | 56 | Open |
| 1620 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 6 | Mihnea Costachi | Robert Baskin | 0-1 | 23 | Open |
| 1621 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 5 | Sergey Nefedov | Mihnea Costachi | 0-1 | 48 | Open |
| 1622 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 4 | Mihnea Costachi | Bojan Maksimovic | 0-1 | 26 | Open |
| 1623 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 3 | Orest Vovk | Mihnea Costachi | 0-1 | 40 | Open |
| 1624 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 2 | Mihnea Costachi | Hampus Sorensen | 1-0 | 27 | Open |
| 1625 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 11 | Mihnea Costachi | Krzysztof Budrewicz | 1-0 | 50 | Open |
| 1626 | 2020-12-22 | Titled Tuesday 22nd Dec | chess.com INT | 10 | Geordie Derraugh | Mihnea Costachi | 1-0 | 67 | Open |
| 1627 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 9.16 | Mihnea Costachi | Jacek Tomczak | 1-0 | 26 | Open |
| 1628 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 8.2 | Ilia Smirin | Mihnea Costachi | 0-1 | 31 | Open |
| 1629 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 7.26 | Mihnea Costachi | Mateusz Bartel | 1-0 | 59 | Open |
| 1630 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 6.64 | Andrei Gurbanov | Mihnea Costachi | 0-1 | 28 | Open |
| 1631 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 5.74 | Mihnea Costachi | Read Samadov | 1-0 | 38 | Open |
| 1632 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 4.101 | Yotam Shohat | Mihnea Costachi | 0-1 | 32 | Open |
| 1633 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 3.82 | Mihnea Costachi | Volkan Sevgi | 0-1 | 45 | Open |
| 1634 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 2.4 | Gawain C B Maroroa Jones | Mihnea Costachi | 1-0 | 46 | Open |
| 1635 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 11.16 | Sebastian Bogner | Mihnea Costachi | 1/2-1/2 | 48 | Open |
| 1636 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 10.9 | Mihnea Costachi | Eltaj Safarli | 0-1 | 71 | Open |
| 1637 | 2020-12-18 | Euro Online Blitz Quali | Tornelo INT | 1.112 | Mihnea Costachi | Tigran Nazaretyan | 1-0 | 44 | Open |
| 1638 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 9 | Mihnea Costachi | Eduardo Iturrizaga Bonelli | 0-1 | 42 | Open |
| 1639 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 8 | Le Thao Nguyen Pham | Mihnea Costachi | 0-1 | 40 | Open |
| 1640 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 7 | Mihnea Costachi | Slaven Pastar | 1-0 | 40 | Open |
| 1641 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 6 | Johann Hjartarson | Mihnea Costachi | 0-1 | 60 | Open |
| 1642 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 5 | Artyom Manukyan | Mihnea Costachi | 1/2-1/2 | 53 | Open |
| 1643 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 4 | Mihnea Costachi | Bogdan-Daniel Deac | 0-1 | 74 | Open |
| 1644 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 3 | Mihnea Costachi | Sargis A. Manukyan | 1-0 | 67 | Open |
| 1645 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 2 | Keith Khumalo | Mihnea Costachi | 0-1 | 47 | Open |
| 1646 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 1 | Mihnea Costachi | Ivan B Zivkovic | 1-0 | 32 | Open |
| 1647 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 11 | Grigoriy Oparin | Mihnea Costachi | 1/2-1/2 | 102 | Open |
| 1648 | 2020-12-15 | Titled Tuesday 15th Dec | chess.com INT | 10 | Stelios Halkias | Mihnea Costachi | 0-1 | 46 | Open |
| 1649 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 9 | Alexander Suvorov | Mihnea Costachi | 0-1 | 45 | Open |
| 1650 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 8 | Mihnea Costachi | Gata Kamsky | 0-1 | 35 | Open |
| 1651 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 7 | Mihnea Costachi | Dragos-Andrei Antonica | 1-0 | 40 | Open |
| 1652 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 6 | David Paravyan | Mihnea Costachi | 1-0 | 40 | Open |
| 1653 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 5 | Mihnea Costachi | Olexandr Bortnyk | 1/2-1/2 | 58 | Open |
| 1654 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 4 | Mihnea Costachi | Giga Quparadze | 1-0 | 29 | Open |
| 1655 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 3 | Cristian-Gabriel Voiteanu | Mihnea Costachi | 0-1 | 53 | Open |
| 1656 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 2 | Vladimir Goncharov | Mihnea Costachi | 0-1 | 54 | Open |
| 1657 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 1 | Mihnea Costachi | Ryan Hamley | 1-0 | 53 | Open |
| 1658 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 11 | David Peng | Mihnea Costachi | 0-1 | 30 | Open |
| 1659 | 2020-12-01 | Titled Tuesday 1st Dec | chess.com INT | 10 | Mihnea Costachi | Aryan Tari | 0-1 | 95 | Open |
| 1660 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 9 | Umid Aslanov | Mihnea Costachi | 0-1 | 32 | Open |
| 1661 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 8 | Mihnea Costachi | Sam Schmakel | 0-1 | 26 | Open |
| 1662 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 5 | Tobias Lang Nilsen | Mihnea Costachi | 0-1 | 33 | Open |
| 1663 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 3 | Aleksandar Savanovic | Mihnea Costachi | 0-1 | 33 | Open |
| 1664 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 2 | Mihnea Costachi | Arnold Mayeregger | 0-1 | 82 | Open |
| 1665 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 1 | Erik Ronka | Mihnea Costachi | 1/2-1/2 | 80 | Open |
| 1666 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 11 | Sergey D. Rodchenkov | Mihnea Costachi | 0-1 | 27 | Open |
| 1667 | 2020-11-24 | Titled Tuesday 24th Nov | chess.com INT | 10 | Mihnea Costachi | Maciej Swicarz | 0-1 | 74 | Open |
| 1668 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 9 | Mihnea Costachi | Harshavardhan G B | 1-0 | 72 | Open |
| 1669 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 8 | Mihnea Costachi | Vladimir Demin | 1-0 | 50 | Open |
| 1670 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 7 | Fernando Lopez Gracia | Mihnea Costachi | 1/2-1/2 | 40 | Open |
| 1671 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 6 | Mihnea Costachi | Peter Svidler | 0-1 | 56 | Open |
| 1672 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 5 | Ali Farahat | Mihnea Costachi | 0-1 | 54 | Open |
| 1673 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 4 | German Bazeev | Mihnea Costachi | 1-0 | 53 | Open |
| 1674 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 3 | Mihnea Costachi | Evgeny Sapunov | 0-1 | 25 | Open |
| 1675 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 2 | Mihnea Costachi | Jonas Buhl Bjerre | 1-0 | 42 | Open |
| 1676 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 1 | Zala Urh | Mihnea Costachi | 0-1 | 56 | Open |
| 1677 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 11 | Mihnea Costachi | Momchil Petkov | 1-0 | 54 | Open |
| 1678 | 2020-11-17 | Titled Tuesday 17th Nov | chess.com INT | 10 | Bernardo Vainzoff Sztokbant | Mihnea Costachi | 0-1 | 52 | Open |
| 1679 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 9 | Mihnea Costachi | Dmitry Tatarinov | 0-1 | 42 | Open |
| 1680 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 8 | Evgenios Ioannidis | Mihnea Costachi | 0-1 | 45 | Open |
| 1681 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 7 | Mihnea Costachi | Konstantin Loy | 1-0 | 52 | Open |
| 1682 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 6 | Mihnea Costachi | Luca Suvorov | 1-0 | 53 | Open |
| 1683 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 5 | Alexandre Bouget | Mihnea Costachi | 1-0 | 16 | Open |
| 1684 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 4 | Arthur Muromtsev | Mihnea Costachi | 0-1 | 48 | Open |
| 1685 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 11 | Mihnea Costachi | Vladimir Potkin | 0-1 | 39 | Open |
| 1686 | 2020-11-10 | Titled Tuesday 10th Nov | chess.com INT | 10 | Dominique Myers | Mihnea Costachi | 0-1 | 54 | Open |
| 1687 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 9 | Corey Acor | Mihnea Costachi | 1/2-1/2 | 70 | Open |
| 1688 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 8 | Mihnea Costachi | Bryan Xie | 1-0 | 31 | Open |
| 1689 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 7 | Magdalena Lysiak-Poltorak | Mihnea Costachi | 0-1 | 38 | Open |
| 1690 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 6 | Mihnea Costachi | Denis Lazavik | 0-1 | 69 | Open |
| 1691 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 5 | Savva Vetokhin | Mihnea Costachi | 0-1 | 45 | Open |
| 1692 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 4 | Mihnea Costachi | Rudik Makarian | 0-1 | 46 | Open |
| 1693 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 3 | Mihnea Costachi | Andrew Tang | 0-1 | 74 | Open |
| 1694 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 2 | Kevin Bordi | Mihnea Costachi | 0-1 | 40 | Open |
| 1695 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 11 | Denis Kovalev | Mihnea Costachi | 1/2-1/2 | 76 | Open |
| 1696 | 2020-11-03 | Titled Tuesday 3rd Nov | chess.com INT | 10 | Mihnea Costachi | Polina Shuvalova | 1/2-1/2 | 78 | Open |
| 1697 | 2020-10-27 | Titled Tuesday 27th Oct | chess.com INT | 9 | German Della Morte | Mihnea Costachi | 0-1 | 36 | Open |
| 1698 | 2020-10-27 | Titled Tuesday 27th Oct | chess.com INT | 8 | Mihnea Costachi | Vasil Trickov | 1-0 | 46 | Open |
| 1699 | 2020-10-27 | Titled Tuesday 27th Oct | chess.com INT | 7 | Umid Aslanov | Mihnea Costachi | 1-0 | 32 | Open |
| 1700 | 2020-10-27 | Titled Tuesday 27th Oct | chess.com INT | 6 | Mihnea Costachi | Platon Galperin | 0-1 | 34 | Open |
| 1701 | 2020-10-27 | Titled Tuesday 27th Oct | chess.com INT | 5 | Marcelo Playa | Mihnea Costachi | 0-1 | 46 | Open |
| 1702 | 2020-10-27 | Titled Tuesday 27th Oct | chess.com INT | 4 | Alexandra Kosteniuk | Mihnea Costachi | 1-0 | 66 | Open |
| 1703 | 2020-10-27 | Titled Tuesday 27th Oct | chess.com INT | 3 | Mihnea Costachi | Mikhail Panarin | 0-1 | 57 | Open |
| 1704 | 2020-10-27 | Titled Tuesday 27th Oct | chess.com INT | 2 | Mihnea Costachi | Sebastien Maze | 1-0 | 108 | Open |
| 1705 | 2020-10-27 | Titled Tuesday 27th Oct | chess.com INT | 11 | Mihnea Costachi | Guillermo Baches Garcia | 1/2-1/2 | 63 | Open |
| 1706 | 2020-10-27 | Titled Tuesday 27th Oct | chess.com INT | 10 | David Shahinyan | Mihnea Costachi | 1-0 | 57 | Open |
| 1707 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 9 | Mihnea Costachi | Luis Manuel Perez Rodriguez | 0-1 | 21 | Open |
| 1708 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 7 | Cherry Ann Mejia | Mihnea Costachi | 1-0 | 49 | Open |
| 1709 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 6 | Mihnea Costachi | Jose Gabriel Cardoso Cardoso | 0-1 | 38 | Open |
| 1710 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 5 | Mihnea Costachi | Alexandr Triapishko | 1-0 | 41 | Open |
| 1711 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 4 | Kirill Kuderinov | Mihnea Costachi | 0-1 | 35 | Open |
| 1712 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 3 | Tahsin Tajwar Zia | Mihnea Costachi | 1/2-1/2 | 60 | Open |
| 1713 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 2 | Mihnea Costachi | Baadur Jobava | 0-1 | 39 | Open |
| 1714 | 2020-10-20 | Titled Tuesday 20th Oct | chess.com INT | 1 | Julia Alboredo | Mihnea Costachi | 0-1 | 27 | Open |
| 1715 | 2020-10-13 | Titled Tuesday 13th Oct | chess.com INT | 8 | Mihnea Costachi | Ariel Tokman | 0-1 | 65 | Open |
| 1716 | 2020-10-13 | Titled Tuesday 13th Oct | chess.com INT | 7 | Sabir Umarov | Mihnea Costachi | 0-1 | 42 | Open |
| 1717 | 2020-10-13 | Titled Tuesday 13th Oct | chess.com INT | 6 | Mihnea Costachi | Srinath Narayanan | 0-1 | 44 | Open |
| 1718 | 2020-10-13 | Titled Tuesday 13th Oct | chess.com INT | 5 | Mihnea Costachi | Ronan Le Goff | 0-1 | 40 | Open |
| 1719 | 2020-10-13 | Titled Tuesday 13th Oct | chess.com INT | 4 | Vilka Sipila | Mihnea Costachi | 0-1 | 45 | Open |
| 1720 | 2020-10-13 | Titled Tuesday 13th Oct | chess.com INT | 3 | Oleg Vastrukhin | Mihnea Costachi | 1-0 | 62 | Open |
| 1721 | 2020-10-13 | Titled Tuesday 13th Oct | chess.com INT | 2 | Mihnea Costachi | Vasif Durarbayli | 1-0 | 53 | Open |
| 1722 | 2020-10-13 | Titled Tuesday 13th Oct | chess.com INT | 1 | Mihnea Costachi | Chamal Gedgafov | 1-0 | 48 | Open |
| 1723 | 2020-10-13 | Titled Tuesday 13th Oct | chess.com INT | 10 | Mihnea Costachi | Margarita Filippova | 1-0 | 29 | Open |
| 1724 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 9 | Mihnea Costachi | Necmettin Korkmaz | 0-1 | 54 | Open |
| 1725 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 8 | Vantika Agrawal | Mihnea Costachi | 0-1 | 51 | Open |
| 1726 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 7 | Mihnea Costachi | Oleg Terletsky | 0-1 | 31 | Open |
| 1727 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 6 | Mihnea Costachi | Kirill Shcherbinin | 1/2-1/2 | 50 | Open |
| 1728 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 4 | Mihnea Costachi | Meri Arabidze | 0-1 | 40 | Open |
| 1729 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 3 | Mihnea Costachi | Dmitry Sumaneev | 1-0 | 48 | Open |
| 1730 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 2 | Jeffery Xiong | Mihnea Costachi | 1-0 | 59 | Open |
| 1731 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 1 | Mihnea Costachi | Alexander Andres Hernandez Jimenez | 1-0 | 34 | Open |
| 1732 | 2020-10-06 | Titled Tuesday 6th Oct | chess.com INT | 10 | Mark Kotliar | Mihnea Costachi | 1-0 | 22 | Open |
| 1733 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 9 | Kacper Polok | Mihnea Costachi | 1-0 | 128 | Open |
| 1734 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 7 | Raphael Lagunow | Mihnea Costachi | 1-0 | 46 | Open |
| 1735 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 6 | Mihnea Costachi | Ildar F Idrisov | 1-0 | 36 | Open |
| 1736 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 5 | Carlos Martins | Mihnea Costachi | 0-1 | 44 | Open |
| 1737 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 4 | Mihnea Costachi | Jarmo Hartikainen | 1-0 | 31 | Open |
| 1738 | 2020-09-29 | Titled Tuesday 29th Sept | chess.com INT | 10 | Mihnea Costachi | Pawel Dudzinski | 1-0 | 70 | Open |
| 1739 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 9 | Mihnea Costachi | Alex Garrido Outon | 1-0 | 51 | Open |
| 1740 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 8 | Daniel Eduardo Lopez Idarraga | Mihnea Costachi | 0-1 | 24 | Open |
| 1741 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 7 | Mihnea Costachi | Ronan Le Goff | 0-1 | 62 | Open |
| 1742 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 6 | Aleksei Pridorozhni | Mihnea Costachi | 1-0 | 24 | Open |
| 1743 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 4 | Mihnea Costachi | Geordie Derraugh | 1-0 | 57 | Open |
| 1744 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 3 | Nicholas Matta | Mihnea Costachi | 1/2-1/2 | 73 | Open |
| 1745 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 2 | Mihnea Costachi | Praggnanandhaa R | 0-1 | 64 | Open |
| 1746 | 2020-09-22 | Titled Tuesday 22nd Sept | chess.com INT | 1 | Mihnea Costachi | Matei-Valeriu Mogirzan | 1-0 | 37 | Open |
| 1747 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 9 | Mihnea Costachi | Diego Saul Rodri Flores Quillas | 0-1 | 47 | Open |
| 1748 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 8 | Mihnea Costachi | Artak Manukian | 1-0 | 40 | Open |
| 1749 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 6 | Mihnea Costachi | Thalia Cervantes Landeiro | 0-1 | 32 | Open |
| 1750 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 4 | Mihnea Costachi | Mrudul Dehankar | 1-0 | 48 | Open |
| 1751 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 3 | Marco Aurelio Zaror Cordeiro | Mihnea Costachi | 0-1 | 41 | Open |
| 1752 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 1 | Barbara Skuhala | Mihnea Costachi | 1-0 | 51 | Open |
| 1753 | 2020-08-25 | Titled Tue 25th Aug | chess.com INT | 10 | Qiyu Zhou | Mihnea Costachi | 0-1 | 52 | Open |
| 1754 | 2020-08-23 | Online Olym Top DivC 2020 | chess.com INT | 7.3 | Mihnea Costachi | Nidal Ghanoui | 1-0 | 51 | Open |
| 1755 | 2020-08-22 | Online Olym Top DivC 2020 | chess.com INT | 6.3 | Massinas Djabri | Mihnea Costachi | 0-1 | 46 | Open |
| 1756 | 2020-08-16 | Online Olym Div2 B 2020 | chess.com INT | 9.4 | Ivan Schitco | Mihnea Costachi | 1/2-1/2 | 72 | Open |
| 1757 | 2020-08-16 | Online Olym Div2 B 2020 | chess.com INT | 8.3 | Mihnea Costachi | Arsens Batashevs | 0-1 | 73 | Open |
| 1758 | 2020-08-15 | Online Olym Div2 B 2020 | chess.com INT | 5.2 | Prin Laohawirapap | Mihnea Costachi | 0-1 | 39 | Open |
| 1759 | 2020-08-15 | Online Olym Div2 B 2020 | chess.com INT | 4.5 | Mihnea Costachi | Samir Sahidi | 1-0 | 27 | Open |
| 1760 | 2020-08-14 | Online Olym Div2 B 2020 | chess.com INT | 1.2 | Mihnea Costachi | Ilia Lipilin | 1/2-1/2 | 74 | Open |
| 1761 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 8 | Mihnea Costachi | Mark Josse | 1/2-1/2 | 63 | Open |
| 1762 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 7 | Mihnea Costachi | Adrian Kondakov | 0-1 | 52 | Open |
| 1763 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 6 | Batsaikhan Tserendorj | Mihnea Costachi | 1-0 | 32 | Open |
| 1764 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 5 | Mihnea Costachi | Sergi Mingarro Carceller | 0-1 | 32 | Open |
| 1765 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 4 | Marcelo Playa | Mihnea Costachi | 0-1 | 36 | Open |
| 1766 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 3 | Onno Elgersma | Mihnea Costachi | 1-0 | 62 | Open |
| 1767 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 2 | Mihnea Costachi | Ruben Gideon Koellner | 0-1 | 61 | Open |
| 1768 | 2020-08-11 | Titled Tue 11th Aug | chess.com INT | 1 | Dmytry Semenenko | Mihnea Costachi | 0-1 | 40 | Open |
| 1769 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 9 | Mihnea Costachi | Diogo Duarte Guimaraes | 1-0 | 36 | Open |
| 1770 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 8 | Mihnea Costachi | Jernej Skuhala | 1-0 | 47 | Open |
| 1771 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 7 | Han Schut | Mihnea Costachi | 0-1 | 22 | Open |
| 1772 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 6 | Maryana Huda | Mihnea Costachi | 0-1 | 49 | Open |
| 1773 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 5 | Mihnea Costachi | Jose Augusto Correa | 1-0 | 39 | Open |
| 1774 | 2020-07-21 | Titled Tuesday 21st July | chess.com INT | 10 | Mihail Rodin | Mihnea Costachi | 0-1 | 53 | Open |
| 1775 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 9 | Mihnea Costachi | Viktor Romanchuk | 0-1 | 86 | Open |
| 1776 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 8 | Mihail Rodin | Mihnea Costachi | 1-0 | 46 | Open |
| 1777 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 7 | Mihnea Costachi | Silvio Eduardo Oliveira | 1-0 | 33 | Open |
| 1778 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 6 | Artsiom Siniauski | Mihnea Costachi | 1-0 | 102 | Open |
| 1779 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 5 | Mihnea Costachi | Leonid Sawlin | 1-0 | 42 | Open |
| 1780 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 4 | Mihnea Costachi | Marcelo Villalba | 1/2-1/2 | 70 | Open |
| 1781 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 3 | Narayanan S L | Mihnea Costachi | 1-0 | 79 | Open |
| 1782 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 2 | Mihnea Costachi | Alicja Sliwicka | 1-0 | 46 | Open |
| 1783 | 2020-07-14 | Titled Tuesday 14th July | chess.com INT | 1 | Qing Aun Lee | Mihnea Costachi | 0-1 | 35 | Open |
| 1784 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 9 | Mihnea Costachi | Attila Turzo | 1-0 | 73 | Open |
| 1785 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 8 | Jonasz Baum | Mihnea Costachi | 0-1 | 27 | Open |
| 1786 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 7 | Mihnea Costachi | Raven Sturt | 0-1 | 42 | Open |
| 1787 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 6 | Conrad Holt | Mihnea Costachi | 1-0 | 49 | Open |
| 1788 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 5 | Maxim Matlakov | Mihnea Costachi | 0-1 | 44 | Open |
| 1789 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 4 | Mihnea Costachi | Sehyun Kwon | 1-0 | 37 | Open |
| 1790 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 3 | Volodymyr Onyshchuk | Mihnea Costachi | 1-0 | 65 | Open |
| 1791 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 2 | Mihnea Costachi | Ignacio Gago Padreny | 1-0 | 32 | Open |
| 1792 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 1 | Mehdi Hasan Parag | Mihnea Costachi | 0-1 | 95 | Open |
| 1793 | 2020-07-07 | Titled Tuesday 7th July | chess.com INT | 10 | Mihnea Costachi | Narayanan S L | 1/2-1/2 | 124 | Open |
| 1794 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 5 | Mihnea Costachi | William Hernandez Gonzalez | 0-1 | 74 | Open |
| 1795 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 4 | Marek Karas | Mihnea Costachi | 0-1 | 57 | Open |
| 1796 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 3 | Mihnea Costachi | Artsiom Siniauski | 0-1 | 112 | Open |
| 1797 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 2 | Kacper Karwowski | Mihnea Costachi | 0-1 | 10 | Open |
| 1798 | 2020-06-16 | Titled Tuesday 16th June | chess.com INT | 1 | Mihnea Costachi | Mohammadhossein Shamsi | 1/2-1/2 | 63 | Open |
| 1799 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 9 | Mihnea Costachi | Momchil Petkov | 1-0 | 58 | Open |
| 1800 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 8 | Evgeny Shtembuliak | Mihnea Costachi | 1-0 | 63 | Open |
| 1801 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 7 | Mihnea Costachi | Konstantinos Markidis | 1-0 | 56 | Open |
| 1802 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 6 | Mihnea Costachi | Anna M. Sargsyan | 1-0 | 47 | Open |
| 1803 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 5 | Igor Glek | Mihnea Costachi | 0-1 | 29 | Open |
| 1804 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 3 | Daniel Garcia Ramos | Mihnea Costachi | 0-1 | 54 | Open |
| 1805 | 2020-06-09 | Titled Tuesday 9th June | chess.com INT | 10 | Mihnea Costachi | Nihal Sarin | 1/2-1/2 | 86 | Open |
| 1806 | 2020-06-06 | ch-ROU Rapid Online Final | chess.com INT | 3.2 | Mihnea Costachi | Ioan-Cristian Chirila | 0-1 | 119 | Open |
| 1807 | 2020-06-06 | ch-ROU Rapid Online Final | chess.com INT | 3.1 | Ioan-Cristian Chirila | Mihnea Costachi | 1/2-1/2 | 101 | Open |
| 1808 | 2020-06-05 | ch-ROU Rapid Online Final | chess.com INT | 2.2 | Mihnea Costachi | Lucian-Costin Miron | 0-1 | 41 | Open |
| 1809 | 2020-06-05 | ch-ROU Rapid Online Final | chess.com INT | 2.1 | Lucian-Costin Miron | Mihnea Costachi | 1-0 | 57 | Open |
| 1810 | 2020-06-04 | ch-ROU Rapid Online Final | chess.com INT | 1.3 | Mihnea Costachi | Bogdan-Daniel Deac | 1-0 | 32 | Open |
| 1811 | 2020-06-04 | ch-ROU Rapid Online Final | chess.com INT | 1.2 | Mihnea Costachi | Bogdan-Daniel Deac | 1/2-1/2 | 56 | Open |
| 1812 | 2020-06-04 | ch-ROU Rapid Online Final | chess.com INT | 1.1 | Bogdan-Daniel Deac | Mihnea Costachi | 1/2-1/2 | 34 | Open |
| 1813 | 2020-06-03 | ch-ROU Rapid Online GpD | chess.com INT | 6 | Mihnea Costachi | Vladislav Nevednichy | 1/2-1/2 | 11 | Open |
| 1814 | 2020-06-03 | ch-ROU Rapid Online GpD | chess.com INT | 5 | Vladislav Nevednichy | Mihnea Costachi | 0-1 | 24 | Open |
| 1815 | 2020-06-02 | ch-ROU Rapid Online GpD | chess.com INT | 4 | Alexandru-Vasile David | Mihnea Costachi | 0-1 | 35 | Open |
| 1816 | 2020-06-02 | ch-ROU Rapid Online GpD | chess.com INT | 3 | Mihnea Costachi | Alexandru-Vasile David | 1/2-1/2 | 30 | Open |
| 1817 | 2020-06-01 | ch-ROU Rapid Online GpD | chess.com INT | 2 | Mihnea Costachi | Ioan-Cristian Chirila | 1/2-1/2 | 69 | Open |
| 1818 | 2020-06-01 | ch-ROU Rapid Online GpD | chess.com INT | 1 | Ioan-Cristian Chirila | Mihnea Costachi | 1-0 | 41 | Open |
| 1819 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 8 | Mihnea Costachi | Ataberk Eren | 1-0 | 95 | Open |
| 1820 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 7 | Artyom Timofeev | Mihnea Costachi | 1-0 | 36 | Open |
| 1821 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 6 | Veselin Pantev | Mihnea Costachi | 0-1 | 32 | Open |
| 1822 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 5 | Mihnea Costachi | Samvel Ter-Sahakyan | 0-1 | 87 | Open |
| 1823 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 4 | Mihnea Costachi | Kiril Georgiev | 1-0 | 41 | Open |
| 1824 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 3 | Yevhenii Yelisieiev | Mihnea Costachi | 0-1 | 69 | Open |
| 1825 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 2 | Mihnea Costachi | Roman Kharatyan | 1-0 | 44 | Open |
| 1826 | 2020-05-30 | Euro Online +2300 Day 2 | chess.com INT | 1 | Maxime Lagarde | Mihnea Costachi | 1-0 | 27 | Open |
| 1827 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 8 | Gleb Dudin | Mihnea Costachi | 0-1 | 31 | Open |
| 1828 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 7 | Mihnea Costachi | Velimir Ivic | 0-1 | 85 | Open |
| 1829 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 6 | Andrey Tsvetkov | Mihnea Costachi | 1-0 | 85 | Open |
| 1830 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 5 | Mihnea Costachi | Gawain C B Maroroa Jones | 0-1 | 87 | Open |
| 1831 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 4 | Deimante Daulyte-Cornette | Mihnea Costachi | 0-1 | 50 | Open |
| 1832 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 3 | Alexander Krayz | Mihnea Costachi | 0-1 | 47 | Open |
| 1833 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 2 | Mihnea Costachi | Sargis A. Manukyan | 1-0 | 38 | Open |
| 1834 | 2020-05-29 | Euro Online +2300 Day 1 | chess.com INT | 1 | Mihnea Costachi | Michael Kopylov | 0-1 | 60 | Open |
| 1835 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 9 | Maciej Klekowski | Mihnea Costachi | 1-0 | 43 | Open |
| 1836 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 8 | Mihnea Costachi | Mikheil Mchedlishvili | 1-0 | 54 | Open |
| 1837 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 7 | Nitish Belurkar | Mihnea Costachi | 0-1 | 96 | Open |
| 1838 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 6 | Mihnea Costachi | Vladislav Kovalev | 0-1 | 29 | Open |
| 1839 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 5 | Quang Liem Le | Mihnea Costachi | 0-1 | 36 | Open |
| 1840 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 4 | Mihnea Costachi | Rostyslav Malynovskyi | 1-0 | 67 | Open |
| 1841 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 3 | Mihnea Costachi | Kenneth Terence Solomon | 1-0 | 42 | Open |
| 1842 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 2 | Igor Perelygin | Mihnea Costachi | 0-1 | 40 | Open |
| 1843 | 2020-05-26 | Titled Tuesday 26th May | chess.com INT | 1 | Mihnea Costachi | Vladimir Chernikov | 0-1 | 28 | Open |
| 1844 | 2020-05-12 | Titled Tuesday 12th May | chess.com INT | 9 | Oleksiy Solovchuk | Mihnea Costachi | 0-1 | 43 | Open |
| 1845 | 2020-05-12 | Titled Tuesday 12th May | chess.com INT | 8 | Mihnea Costachi | Robert Prieb | 1/2-1/2 | 53 | Open |
| 1846 | 2020-05-12 | Titled Tuesday 12th May | chess.com INT | 6 | Mihnea Costachi | Klementy Sychev | 0-1 | 73 | Open |
| 1847 | 2020-05-12 | Titled Tuesday 12th May | chess.com INT | 3 | Maxime Vachier-Lagrave | Mihnea Costachi | 1-0 | 52 | Open |
| 1848 | 2020-05-12 | Titled Tuesday 12th May | chess.com INT | 10 | Sergey Grigoriants | Mihnea Costachi | 1-0 | 55 | Open |
| 1849 | 2020-04-28 | Titled Tuesday 28th Apr | chess.com INT | 9 | Mihnea Costachi | Nikolai Vlassov | 1-0 | 42 | Open |
| 1850 | 2020-04-28 | Titled Tuesday 28th Apr | chess.com INT | 2 | Manfred Freitag | Mihnea Costachi | 0-1 | 37 | Open |
| 1851 | 2019-10-25 | 58th World Juniors 2019 | New Delhi IND | 11.9 | Arjun Kalyan | Mihnea Costachi | 0-1 | 42 | Open |
| 1852 | 2019-10-24 | 58th World Juniors 2019 | New Delhi IND | 10.5 | Mihnea Costachi | Temur Kuybokarov | 1/2-1/2 | 30 | Open |
| 1853 | 2019-10-23 | 58th World Juniors 2019 | New Delhi IND | 9.1 | Evgeny Shtembuliak | Mihnea Costachi | 1-0 | 35 | Open |
| 1854 | 2019-10-22 | 58th World Juniors 2019 | New Delhi IND | 8.5 | Viktor Gazik | Mihnea Costachi | 0-1 | 37 | Open |
| 1855 | 2019-10-21 | 58th World Juniors 2019 | New Delhi IND | 7.2 | Mihnea Costachi | Murali Karthikeyan | 1/2-1/2 | 30 | Open |
| 1856 | 2019-10-19 | 58th World Juniors 2019 | New Delhi IND | 6.9 | Aaryan Varshney | Mihnea Costachi | 0-1 | 67 | Open |
| 1857 | 2019-10-18 | 58th World Juniors 2019 | New Delhi IND | 5.7 | Mihnea Costachi | Shixu B Wang | 1/2-1/2 | 23 | Open |
| 1858 | 2019-10-17 | 58th World Juniors 2019 | New Delhi IND | 4.14 | Anuj Shrivatri | Mihnea Costachi | 0-1 | 58 | Open |
| 1859 | 2019-10-17 | 58th World Juniors 2019 | New Delhi IND | 3.14 | Mihnea Costachi | Aronyak Ghosh | 1/2-1/2 | 31 | Open |
| 1860 | 2019-10-16 | 58th World Juniors 2019 | New Delhi IND | 2.24 | V Pranav | Mihnea Costachi | 0-1 | 46 | Open |
| 1861 | 2019-10-15 | 58th World Juniors 2019 | New Delhi IND | 1.25 | Mihnea Costachi | Wagh Suyog | 1/2-1/2 | 30 | Open |
| 1862 | 2019-09-29 | TCh-ROU 1st League 2019 | Mamaia ROU | 9.5 | Andreea-Briana Stanciu | Mihnea Costachi | 0-1 | 28 | Open |
| 1863 | 2019-09-28 | TCh-ROU 1st League 2019 | Mamaia ROU | 8.1 | Mihnea Costachi | Alexandru-Bogdan Banzea | 1/2-1/2 | 30 | Open |
| 1864 | 2019-09-27 | TCh-ROU 1st League 2019 | Mamaia ROU | 7.5 | George Stoleriu | Mihnea Costachi | 1/2-1/2 | 13 | Open |
| 1865 | 2019-09-26 | TCh-ROU 1st League 2019 | Mamaia ROU | 6.2 | Alexandru-Emilian Craciun | Mihnea Costachi | 0-1 | 65 | Open |
| 1866 | 2019-09-25 | TCh-ROU 1st League 2019 | Mamaia ROU | 5.4 | Mihnea Costachi | Victor Vasiesiu | 1/2-1/2 | 25 | Open |
| 1867 | 2019-09-24 | TCh-ROU 1st League 2019 | Mamaia ROU | 4.3 | George Ileana | Mihnea Costachi | 1/2-1/2 | 25 | Open |
| 1868 | 2019-09-23 | TCh-ROU 1st League 2019 | Mamaia ROU | 3.3 | Mihnea Costachi | Laurentiu-Vlad Bobocea | 1-0 | 30 | Open |
| 1869 | 2019-09-22 | TCh-ROU 1st League 2019 | Mamaia ROU | 2.4 | Mihnea-Ionut Ognean | Mihnea Costachi | 1/2-1/2 | 17 | Open |
| 1870 | 2019-09-21 | TCh-ROU 1st League 2019 | Mamaia ROU | 1.2 | Mihnea Costachi | Iulian Micu | 1-0 | 35 | Open |
| 1871 | 2019-08-10 | 26th Abu Dhabi Masters | Abu Dhabi UAE | 9.37 | Mihnea Costachi | Shantanu Bhambure | 1/2-1/2 | 32 | Open |
| 1872 | 2019-08-09 | 26th Abu Dhabi Masters | Abu Dhabi UAE | 8.32 | Divya Deshmukh | Mihnea Costachi | 1/2-1/2 | 21 | Open |
| 1873 | 2019-08-08 | 26th Abu Dhabi Masters | Abu Dhabi UAE | 7.37 | Mihnea Costachi | Krishnater Kushager | 1/2-1/2 | 19 | Open |
| 1874 | 2019-08-07 | 26th Abu Dhabi Masters | Abu Dhabi UAE | 6.37 | Sameer Kathmale | Mihnea Costachi | 1/2-1/2 | 105 | Open |
| 1875 | 2019-08-05 | 26th Abu Dhabi Masters | Abu Dhabi UAE | 5.33 | Mihnea Costachi | Raahil Mullick | 1/2-1/2 | 21 | Open |
| 1876 | 2019-08-04 | 26th Abu Dhabi Masters | Abu Dhabi UAE | 4.36 | Xiaowen Zhang | Mihnea Costachi | 1/2-1/2 | 18 | Open |
| 1877 | 2019-08-03 | 26th Abu Dhabi Masters | Abu Dhabi UAE | 3.35 | Mihnea Costachi | Vantika Agrawal | 1/2-1/2 | 21 | Open |
| 1878 | 2019-08-03 | 26th Abu Dhabi Masters | Abu Dhabi UAE | 2.7 | Mustafa Yilmaz | Mihnea Costachi | 1-0 | 80 | Open |
| 1879 | 2019-08-02 | 26th Abu Dhabi Masters | Abu Dhabi UAE | 1.51 | Mihnea Costachi | Soham Datar | 1-0 | 98 | Open |
| 1880 | 2019-07-31 | 12th Arad Open 2019 | Arad ROU | 9.7 | Mihnea Costachi | Daniel Barrish | 1-0 | 42 | Open |
| 1881 | 2019-07-30 | 12th Arad Open 2019 | Arad ROU | 8.4 | Iustin Ciorgovean | Mihnea Costachi | 1/2-1/2 | 14 | Open |
| 1882 | 2019-07-29 | 12th Arad Open 2019 | Arad ROU | 7.4 | Mihnea Costachi | Alexandru-Bogdan Banzea | 1/2-1/2 | 13 | Open |
| 1883 | 2019-07-28 | 12th Arad Open 2019 | Arad ROU | 6.2 | Ihor Nester | Mihnea Costachi | 1/2-1/2 | 56 | Open |
| 1884 | 2019-07-27 | 12th Arad Open 2019 | Arad ROU | 5.2 | Mihnea Costachi | Andrei Istratescu | 1/2-1/2 | 12 | Open |
| 1885 | 2019-07-26 | 12th Arad Open 2019 | Arad ROU | 4.3 | Dan Bogdan | Mihnea Costachi | 0-1 | 31 | Open |
| 1886 | 2019-07-25 | 12th Arad Open 2019 | Arad ROU | 3.5 | Mihnea Costachi | Robert-Paul Nastase | 1-0 | 27 | Open |
| 1887 | 2019-07-25 | 12th Arad Open 2019 | Arad ROU | 2.5 | Milos Sarmir | Mihnea Costachi | 0-1 | 28 | Open |
| 1888 | 2019-07-24 | 12th Arad Open 2019 | Arad ROU | 1.1 | Mihnea Costachi | Attila-Norbert Denes | 1-0 | 24 | Open |
| 1889 | 2019-03-29 | 20th ch-EUR Indiv 2019 | Skopje MKD | 11.95 | Mihnea Costachi | Alex Krstulovic | 1-0 | 23 | Open |
| 1890 | 2019-03-28 | 20th ch-EUR Indiv 2019 | Skopje MKD | 10.6 | Sebastien Maze | Mihnea Costachi | 1-0 | 28 | Open |
| 1891 | 2019-03-27 | 20th ch-EUR Indiv 2019 | Skopje MKD | 9.54 | Mihnea Costachi | Dmitry Gordievsky | 1/2-1/2 | 18 | Open |
| 1892 | 2019-03-26 | 20th ch-EUR Indiv 2019 | Skopje MKD | 8.101 | Konstantin Borsuk | Mihnea Costachi | 0-1 | 68 | Open |
| 1893 | 2019-03-25 | 20th ch-EUR Indiv 2019 | Skopje MKD | 7.99 | Mihnea Costachi | Toni Lazov | 1/2-1/2 | 37 | Open |
| 1894 | 2019-03-24 | 20th ch-EUR Indiv 2019 | Skopje MKD | 6.56 | Kiril Georgiev | Mihnea Costachi | 1-0 | 68 | Open |
| 1895 | 2019-03-22 | 20th ch-EUR Indiv 2019 | Skopje MKD | 5.102 | Mihnea Costachi | Mateusz Paszewski | 1-0 | 31 | Open |
| 1896 | 2019-03-21 | 20th ch-EUR Indiv 2019 | Skopje MKD | 4.55 | Falko Bindrich | Mihnea Costachi | 1-0 | 77 | Open |
| 1897 | 2019-03-20 | 20th ch-EUR Indiv 2019 | Skopje MKD | 3.52 | Mihnea Costachi | Dragan Solak | 1/2-1/2 | 47 | Open |
| 1898 | 2019-03-19 | 20th ch-EUR Indiv 2019 | Skopje MKD | 2.45 | Niclas Huschenbeth | Mihnea Costachi | 1/2-1/2 | 50 | Open |
| 1899 | 2019-03-18 | 20th ch-EUR Indiv 2019 | Skopje MKD | 1.162 | Mihnea Costachi | Kristijan Velkovski | 1-0 | 40 | Open |
| 1900 | 2018-12-02 | TCh-ROU Superliga 2018 | Sovata ROU | 9.3 | Mihnea Costachi | Paul-Horatiu Casangiu | 1-0 | 39 | Open |
| 1901 | 2018-11-30 | TCh-ROU Superliga 2018 | Sovata ROU | 7.2 | Mihnea Costachi | Victor Vasiesiu | 1-0 | 36 | Open |
| 1902 | 2018-11-29 | TCh-ROU Superliga 2018 | Sovata ROU | 6.5 | Mihnea Costachi | Madalin Andronescu | 1-0 | 42 | Open |
| 1903 | 2018-11-28 | TCh-ROU Superliga 2018 | Sovata ROU | 5.1 | Mihnea Costachi | Tamas-Kristof Balla | 1/2-1/2 | 31 | Open |
| 1904 | 2018-11-26 | TCh-ROU Superliga 2018 | Sovata ROU | 3.2 | Catalin Mihai | Mihnea Costachi | 0-1 | 39 | Open |
| 1905 | 2018-11-25 | TCh-ROU Superliga 2018 | Sovata ROU | 2.4 | Mihnea Costachi | Mihai-Vlad Ciorica | 1-0 | 18 | Open |
| 1906 | 2018-11-21 | Romgaz Blitz Open 2018 | Bucharest ROU | 9.2 | Mihail Marin | Mihnea Costachi | 1/2-1/2 | 56 | Open |
| 1907 | 2018-11-21 | Romgaz Blitz Open 2018 | Bucharest ROU | 7.4 | Stefan Tomici | Mihnea Costachi | 1/2-1/2 | 54 | Open |
| 1908 | 2018-11-21 | Romgaz Blitz Open 2018 | Bucharest ROU | 11.1 | Andrei Istratescu | Mihnea Costachi | 1/2-1/2 | 11 | Open |
| 1909 | 2018-11-21 | Romgaz Blitz Open 2018 | Bucharest ROU | 10.3 | Mihnea Costachi | Ioan Radu | 1-0 | 56 | Open |
| 1910 | 2018-10-30 | World Youth Open U18 2018 | Porto Carras GRE | 11.12 | Milton Pantzar | Mihnea Costachi | 1-0 | 66 | Open |
| 1911 | 2018-10-29 | World Youth Open U18 2018 | Porto Carras GRE | 10.11 | Mihnea Costachi | Johannes Haug | 1/2-1/2 | 27 | Open |
| 1912 | 2018-10-28 | World Youth Open U18 2018 | Porto Carras GRE | 9.7 | Timur Fakhrutdinov | Mihnea Costachi | 1-0 | 75 | Open |
| 1913 | 2018-10-27 | World Youth Open U18 2018 | Porto Carras GRE | 8.9 | Mihnea Costachi | Guha Mitrabha | 1-0 | 54 | Open |
| 1914 | 2018-10-26 | World Youth Open U18 2018 | Porto Carras GRE | 7.14 | Eivind Olav Risting | Mihnea Costachi | 0-1 | 42 | Open |
| 1915 | 2018-10-24 | World Youth Open U18 2018 | Porto Carras GRE | 6.14 | Mihnea Costachi | Vid Dobrovoljc | 1/2-1/2 | 51 | Open |
| 1916 | 2018-10-23 | World Youth Open U18 2018 | Porto Carras GRE | 5.13 | Shixu B Wang | Mihnea Costachi | 1/2-1/2 | 43 | Open |
| 1917 | 2018-10-22 | World Youth Open U18 2018 | Porto Carras GRE | 4.14 | Mihnea Costachi | Nikoloz Tsomaia | 1/2-1/2 | 75 | Open |
| 1918 | 2018-10-21 | World Youth Open U18 2018 | Porto Carras GRE | 3.12 | Ahmad Ahmadzada | Mihnea Costachi | 1/2-1/2 | 31 | Open |
| 1919 | 2018-10-21 | World Youth Open U18 2018 | Porto Carras GRE | 2.8 | Mihnea Costachi | Alexandru-Bogdan Banzea | 1/2-1/2 | 13 | Open |
| 1920 | 2018-10-20 | World Youth Open U18 2018 | Porto Carras GRE | 1.11 | Davi Sulzbacher Goncalves | Mihnea Costachi | 0-1 | 31 | Open |
| 1921 | 2018-09-16 | Tasnad Open 2018 | Tasnad ROU | 9.3 | Mihnea Costachi | Adrian-Marian Petrisor | 1/2-1/2 | 22 | Open |
| 1922 | 2018-09-15 | Tasnad Open 2018 | Tasnad ROU | 8.3 | Mihnea Costachi | Lucian-Ioan Filip | 1/2-1/2 | 8 | Open |
| 1923 | 2018-09-15 | Tasnad Open 2018 | Tasnad ROU | 7.2 | Gergely Aczel | Mihnea Costachi | 0-1 | 54 | Open |
| 1924 | 2018-09-14 | Tasnad Open 2018 | Tasnad ROU | 6.2 | Artem Omelja | Mihnea Costachi | 1-0 | 62 | Open |
| 1925 | 2018-09-14 | Tasnad Open 2018 | Tasnad ROU | 5.3 | Mihnea Costachi | Boris Itkis | 1-0 | 39 | Open |
| 1926 | 2018-09-13 | Tasnad Open 2018 | Tasnad ROU | 4.2 | Daniel Baratosi | Mihnea Costachi | 1/2-1/2 | 15 | Open |
| 1927 | 2018-09-13 | Tasnad Open 2018 | Tasnad ROU | 3.1 | Mihnea Costachi | Andrei Istratescu | 1/2-1/2 | 12 | Open |
| 1928 | 2018-09-12 | Tasnad Open 2018 | Tasnad ROU | 2.3 | Mihnea Costachi | Tamas-Kristof Balla | 1-0 | 46 | Open |
| 1929 | 2018-09-11 | Tasnad Open 2018 | Tasnad ROU | 1.3 | Sorin-Mihai Samu | Mihnea Costachi | 0-1 | 35 | Open |
| 1930 | 2018-08-12 | 11th Arad Open 2018 | Arad ROU | 9.3 | Mihnea Costachi | Deepan Chakkravarthy J. | 1/2-1/2 | 30 | Open |
| 1931 | 2018-08-11 | 11th Arad Open 2018 | Arad ROU | 8.4 | Gergely Aczel | Mihnea Costachi | 0-1 | 44 | Open |
| 1932 | 2018-08-10 | 11th Arad Open 2018 | Arad ROU | 7.1 | Mihnea Costachi | Marius Abramciuc | 1-0 | 32 | Open |
| 1933 | 2018-08-09 | 11th Arad Open 2018 | Arad ROU | 6.1 | Adrian-Simion Secheres | Mihnea Costachi | 1/2-1/2 | 22 | Open |
| 1934 | 2018-08-08 | 11th Arad Open 2018 | Arad ROU | 5.4 | Mihnea Costachi | Konstantin Tarlev | 1/2-1/2 | 47 | Open |
| 1935 | 2018-08-07 | 11th Arad Open 2018 | Arad ROU | 4.3 | Mihnea Costachi | Gergely Antal | 1/2-1/2 | 21 | Open |
| 1936 | 2018-08-06 | 11th Arad Open 2018 | Arad ROU | 3.13 | Sasa Velickovic | Mihnea Costachi | 0-1 | 36 | Open |
| 1937 | 2018-08-06 | 11th Arad Open 2018 | Arad ROU | 2.14 | Mihnea Costachi | Matei-Ioan Dumitru | 1-0 | 77 | Open |
| 1938 | 2018-08-05 | 11th Arad Open 2018 | Arad ROU | 1.15 | Diana-Alexandra Ciungan | Mihnea Costachi | 0-1 | 31 | Open |
| 1939 | 2018-04-26 | Budapest Spring Open 2018 | Budapest HUN | 9.38 | Nikhil Kumar | Mihnea Costachi | 0-1 | 43 | Open |
| 1940 | 2018-04-25 | Budapest Spring Open 2018 | Budapest HUN | 8.36 | Mihnea Costachi | Peter Polyik | 1/2-1/2 | 52 | Open |
| 1941 | 2018-04-24 | Budapest Spring Open 2018 | Budapest HUN | 7.36 | Justin Sarkar | Mihnea Costachi | 1/2-1/2 | 38 | Open |
| 1942 | 2018-04-23 | Budapest Spring Open 2018 | Budapest HUN | 6.28 | Mihnea Costachi | Fethi Apaydin | 0-1 | 81 | Open |
| 1943 | 2018-04-22 | Budapest Spring Open 2018 | Budapest HUN | 5.29 | Michal Rudolf | Mihnea Costachi | 1/2-1/2 | 43 | Open |
| 1944 | 2018-04-21 | Budapest Spring Open 2018 | Budapest HUN | 4.37 | Mihnea Costachi | Andras Orosz | 1-0 | 33 | Open |
| 1945 | 2018-04-20 | Budapest Spring Open 2018 | Budapest HUN | 3.13 | Benjamin Gledura | Mihnea Costachi | 1-0 | 34 | Open |
| 1946 | 2018-04-18 | Budapest Spring Open 2018 | Budapest HUN | 1.39 | Praveen Kumar C | Mihnea Costachi | 1/2-1/2 | 35 | Open |
| 1947 | 2017-12-17 | European Rapid 2017 | Katowice POL | 9.32 | Nikita Meshkovs | Mihnea Costachi | 1/2-1/2 | 77 | Open |
| 1948 | 2017-12-17 | European Rapid 2017 | Katowice POL | 8.78 | Mihnea Costachi | Krzysztof Jurkiewicz | 1-0 | 30 | Open |
| 1949 | 2017-12-17 | European Rapid 2017 | Katowice POL | 7.94 | Konstantin Fedotov | Mihnea Costachi | 0-1 | 100 | Open |
| 1950 | 2017-12-17 | European Rapid 2017 | Katowice POL | 11.85 | Evgenija Ovod | Mihnea Costachi | 0-1 | 43 | Open |
| 1951 | 2017-12-17 | European Rapid 2017 | Katowice POL | 10.35 | Mihnea Costachi | Alexei Fedorov | 0-1 | 47 | Open |
| 1952 | 2017-12-16 | European Rapid 2017 | Katowice POL | 5.31 | Kacper Piorun | Mihnea Costachi | 1-0 | 70 | Open |
| 1953 | 2017-12-16 | European Rapid 2017 | Katowice POL | 4.18 | Mihnea Costachi | Arturs Neiksans | 1/2-1/2 | 60 | Open |
| 1954 | 2017-12-16 | European Rapid 2017 | Katowice POL | 3.93 | Dominik Marczuk | Mihnea Costachi | 0-1 | 28 | Open |
| 1955 | 2017-12-15 | European Blitz 2017 | Katowice POL | 9.43 | Maximilian Berchtenbreiter | Mihnea Costachi | 1-0 | 36 | Open |
| 1956 | 2017-12-15 | European Blitz 2017 | Katowice POL | 8.22 | Mikulas Manik | Mihnea Costachi | 1/2-1/2 | 50 | Open |
| 1957 | 2017-12-15 | European Blitz 2017 | Katowice POL | 7.22 | Mihnea Costachi | Mikulas Manik | 0-1 | 49 | Open |
| 1958 | 2017-12-15 | European Blitz 2017 | Katowice POL | 6.81 | Efthimios Kiratzopoulos | Mihnea Costachi | 0-1 | 31 | Open |
| 1959 | 2017-12-15 | European Blitz 2017 | Katowice POL | 5.81 | Mihnea Costachi | Efthimios Kiratzopoulos | 1-0 | 50 | Open |
| 1960 | 2017-12-15 | European Blitz 2017 | Katowice POL | 22.33 | Patrick Zelbel | Mihnea Costachi | 1-0 | 23 | Open |
| 1961 | 2017-12-15 | European Blitz 2017 | Katowice POL | 21.33 | Mihnea Costachi | Patrick Zelbel | 1-0 | 48 | Open |
| 1962 | 2017-12-15 | European Blitz 2017 | Katowice POL | 20.25 | Mihnea Costachi | Zbynek Hracek | 1-0 | 29 | Open |
| 1963 | 2017-12-15 | European Blitz 2017 | Katowice POL | 19.25 | Zbynek Hracek | Mihnea Costachi | 1-0 | 48 | Open |
| 1964 | 2017-12-15 | European Blitz 2017 | Katowice POL | 18.29 | Alexey Kislinsky | Mihnea Costachi | 0-1 | 54 | Open |
| 1965 | 2017-12-15 | European Blitz 2017 | Katowice POL | 17.29 | Mihnea Costachi | Alexey Kislinsky | 0-1 | 38 | Open |
| 1966 | 2017-12-15 | European Blitz 2017 | Katowice POL | 16.19 | Mihnea Costachi | Lawrence Trent | 0-1 | 85 | Open |
| 1967 | 2017-12-15 | European Blitz 2017 | Katowice POL | 15.19 | Lawrence Trent | Mihnea Costachi | 0-1 | 62 | Open |
| 1968 | 2017-12-15 | European Blitz 2017 | Katowice POL | 14.45 | Mihnea Costachi | Mai Narva | 1-0 | 21 | Open |
| 1969 | 2017-12-15 | European Blitz 2017 | Katowice POL | 13.45 | Mai Narva | Mihnea Costachi | 0-1 | 70 | Open |
| 1970 | 2017-12-15 | European Blitz 2017 | Katowice POL | 12.74 | Vilmos Balint | Mihnea Costachi | 0-1 | 51 | Open |
| 1971 | 2017-12-15 | European Blitz 2017 | Katowice POL | 11.74 | Mihnea Costachi | Vilmos Balint | 0-1 | 37 | Open |
| 1972 | 2017-12-15 | European Blitz 2017 | Katowice POL | 10.43 | Mihnea Costachi | Maximilian Berchtenbreiter | 1/2-1/2 | 58 | Open |
| 1973 | 2017-11-27 | Romanian Open 2017 | Alba Iulia ROU | 9.4 | Vadim Shishkin | Mihnea Costachi | 1/2-1/2 | 23 | Open |
| 1974 | 2017-11-26 | Romanian Open 2017 | Alba Iulia ROU | 8.2 | Mihnea Costachi | Alexei Fedorov | 1/2-1/2 | 11 | Open |
| 1975 | 2017-11-24 | Romanian Open 2017 | Alba Iulia ROU | 7.1 | Vladislav Nevednichy | Mihnea Costachi | 1/2-1/2 | 45 | Open |
| 1976 | 2017-11-24 | Romanian Open 2017 | Alba Iulia ROU | 6.3 | Vasile Sanduleac | Mihnea Costachi | 1/2-1/2 | 15 | Open |
| 1977 | 2017-11-23 | Romanian Open 2017 | Alba Iulia ROU | 5.4 | Mihnea Costachi | Lev Yankelevich | 1-0 | 44 | Open |
| 1978 | 2017-11-22 | Romanian Open 2017 | Alba Iulia ROU | 4.7 | George Stoleriu | Mihnea Costachi | 0-1 | 35 | Open |
| 1979 | 2017-11-21 | Romanian Open 2017 | Alba Iulia ROU | 3.8 | Mihnea Costachi | Paul-Cristian Rusan | 1-0 | 36 | Open |
| 1980 | 2017-11-21 | Romanian Open 2017 | Alba Iulia ROU | 2.8 | Alin Toma Andreica | Mihnea Costachi | 1/2-1/2 | 21 | Open |
| 1981 | 2017-11-20 | Romanian Open 2017 | Alba Iulia ROU | 1.8 | Mihnea Costachi | Mihnea-Ionut Ognean | 0-1 | 50 | Open |
| 1982 | 2017-11-19 | TCh-ROU Superliga 2017 | Baile Govora ROU | 9.3 | Marius Manolache | Mihnea Costachi | 1-0 | 50 | Open |
| 1983 | 2017-11-18 | TCh-ROU Superliga 2017 | Baile Govora ROU | 8.4 | Mihnea Costachi | Vlad-Cristian Jianu | 1/2-1/2 | 15 | Open |
| 1984 | 2017-11-17 | TCh-ROU Superliga 2017 | Baile Govora ROU | 7.2 | Dan Vasiesiu | Mihnea Costachi | 1/2-1/2 | 46 | Open |
| 1985 | 2017-11-16 | TCh-ROU Superliga 2017 | Baile Govora ROU | 6.5 | Mihnea Costachi | Tamas-Kristof Balla | 1-0 | 54 | Open |
| 1986 | 2017-11-15 | TCh-ROU Superliga 2017 | Baile Govora ROU | 5.1 | Lucian Nita | Mihnea Costachi | 0-1 | 53 | Open |
| 1987 | 2017-11-14 | TCh-ROU Superliga 2017 | Baile Govora ROU | 4.5 | Mihnea Costachi | Madalin Andronescu | 1-0 | 25 | Open |
| 1988 | 2017-11-13 | TCh-ROU Superliga 2017 | Baile Govora ROU | 3.2 | Mihnea Costachi | Tiberiu-Marian Georgescu | 1/2-1/2 | 13 | Open |
| 1989 | 2017-11-12 | TCh-ROU Superliga 2017 | Baile Govora ROU | 2.4 | Doru-Alexandru Ionescu | Mihnea Costachi | 1/2-1/2 | 60 | Open |
| 1990 | 2017-11-11 | TCh-ROU Superliga 2017 | Baile Govora ROU | 1.3 | Mihnea Costachi | Iulian Micu | 1-0 | 31 | Open |
| 1991 | 2017-10-14 | 33rd ECC Open 2017 | Antalya TUR | 7.18 | Mihnea Costachi | Huseyin Oguz | 1-0 | 54 | Open |
| 1992 | 2017-10-13 | 33rd ECC Open 2017 | Antalya TUR | 6.16 | Mihnea Costachi | Spyridon Naoum | 0-1 | 34 | Open |
| 1993 | 2017-10-12 | 33rd ECC Open 2017 | Antalya TUR | 5.15 | Armend Budima | Mihnea Costachi | 0-1 | 55 | Open |
| 1994 | 2017-10-11 | 33rd ECC Open 2017 | Antalya TUR | 4.18 | Gerard O'Connell | Mihnea Costachi | 0-1 | 27 | Open |
| 1995 | 2017-10-10 | 33rd ECC Open 2017 | Antalya TUR | 3.16 | Mihnea Costachi | Nderim Saraci | 1/2-1/2 | 68 | Open |
| 1996 | 2017-10-09 | 33rd ECC Open 2017 | Antalya TUR | 2.11 | Marko Tratar | Mihnea Costachi | 1/2-1/2 | 37 | Open |
| 1997 | 2017-10-08 | 33rd ECC Open 2017 | Antalya TUR | 1.13 | Mihnea Costachi | Toms Kantans | 1-0 | 37 | Open |
| 1998 | 2017-10-01 | 3rd Ceramica Corund Open | Corund ROU | 9.6 | Mihnea Costachi | Adrian-Simion Secheres | 1/2-1/2 | 13 | Open |
| 1999 | 2017-09-30 | 3rd Ceramica Corund Open | Corund ROU | 8.8 | David Gavrilescu | Mihnea Costachi | 1/2-1/2 | 10 | Open |
| 2000 | 2017-09-30 | 3rd Ceramica Corund Open | Corund ROU | 7.4 | Mihnea Costachi | Gergely-Andras-Gyula Szabo | 1/2-1/2 | 16 | Open |
| 2001 | 2017-09-29 | 3rd Ceramica Corund Open | Corund ROU | 6.5 | Alexandru-Ovidiu Stanciu | Mihnea Costachi | 1/2-1/2 | 12 | Open |
| 2002 | 2017-09-29 | 3rd Ceramica Corund Open | Corund ROU | 5.8 | Mihnea Costachi | Marcell Losonczi | 1-0 | 26 | Open |
| 2003 | 2017-09-28 | 3rd Ceramica Corund Open | Corund ROU | 4.3 | Marius Manolache | Mihnea Costachi | 1-0 | 65 | Open |
| 2004 | 2017-09-27 | 3rd Ceramica Corund Open | Corund ROU | 3.7 | Mihnea Costachi | Yuriy Kuzmin | 1-0 | 27 | Open |
| 2005 | 2017-09-27 | 3rd Ceramica Corund Open | Corund ROU | 2.2 | Andrei Istratescu | Mihnea Costachi | 1/2-1/2 | 63 | Open |
| 2006 | 2017-09-26 | 3rd Ceramica Corund Open | Corund ROU | 1.11 | Mihnea Costachi | Mihnea-Ionut Ognean | 1-0 | 43 | Open |
| 2007 | 2017-09-14 | 27th EY BU18 2017 | Mamaia ROU | 9.3 | Jesper Sondergaard Thybo | Mihnea Costachi | 1-0 | 17 | Open |
| 2008 | 2017-09-13 | 27th EY BU18 2017 | Mamaia ROU | 8.3 | Aleksey Sorokin | Mihnea Costachi | 0-1 | 46 | Open |
| 2009 | 2017-09-12 | 27th EY BU18 2017 | Mamaia ROU | 7.8 | Mihnea Costachi | Dmitrijs Tokranovs | 1-0 | 33 | Open |
| 2010 | 2017-09-11 | 27th EY BU18 2017 | Mamaia ROU | 6.9 | Sven Tica | Mihnea Costachi | 1/2-1/2 | 51 | Open |
| 2011 | 2017-08-13 | 10th Arad Open 2017 | Arad ROU | 9.2 | Mihnea Costachi | Andrei Istratescu | 1/2-1/2 | 35 | Open |
| 2012 | 2017-08-12 | 10th Arad Open 2017 | Arad ROU | 8.5 | Mihnea Costachi | Codrut-Constantin Florescu | 1-0 | 45 | Open |
| 2013 | 2017-08-11 | 10th Arad Open 2017 | Arad ROU | 7.4 | Vladislav Nevednichy | Mihnea Costachi | 1/2-1/2 | 62 | Open |
| 2014 | 2017-08-10 | 10th Arad Open 2017 | Arad ROU | 6.11 | Mihnea Costachi | Lucian Gilea | 1-0 | 29 | Open |
| 2015 | 2017-08-09 | 10th Arad Open 2017 | Arad ROU | 5.13 | Mihaela Sandu | Mihnea Costachi | 0-1 | 58 | Open |
| 2016 | 2017-08-08 | 10th Arad Open 2017 | Arad ROU | 4.26 | Mihnea Costachi | Daria-Ioana Visanescu | 1-0 | 35 | Open |
| 2017 | 2017-08-07 | 10th Arad Open 2017 | Arad ROU | 3.21 | Ervin Mozes | Mihnea Costachi | 1/2-1/2 | 44 | Open |
| 2018 | 2017-08-07 | 10th Arad Open 2017 | Arad ROU | 2.17 | Mihnea Costachi | Cristian-Clement Daianu | 1/2-1/2 | 17 | Open |
| 2019 | 2017-08-06 | 10th Arad Open 2017 | Arad ROU | 1.17 | Gheorghe Dracea | Mihnea Costachi | 0-1 | 23 | Open |
| 2020 | 2017-08-03 | 26th Kavala Open 2017 | Kavala GRE | 8.2 | Spiridon Nikolaou | Mihnea Costachi | 1-0 | 54 | Open |
| 2021 | 2017-08-02 | 26th Kavala Open 2017 | Kavala GRE | 7.16 | Mihnea Costachi | Inga Charkhalashvili | 1/2-1/2 | 26 | Open |
| 2022 | 2017-08-01 | 26th Kavala Open 2017 | Kavala GRE | 6.6 | 13900463 | Mihnea Costachi | 1-0 | 44 | Open |
| 2023 | 2017-07-31 | 26th Kavala Open 2017 | Kavala GRE | 5.1 | Mihnea Costachi | Danilo Cerovic | 1/2-1/2 | 22 | Open |
| 2024 | 2017-07-30 | 26th Kavala Open 2017 | Kavala GRE | 4.13 | Mario Livaja | Mihnea Costachi | 0-1 | 38 | Open |
| 2025 | 2017-07-29 | 26th Kavala Open 2017 | Kavala GRE | 2.15 | Georgios Papadopoulos | Mihnea Costachi | 1-0 | 72 | Open |
| 2026 | 2017-07-28 | 26th Kavala Open 2017 | Kavala GRE | 1.2 | Mihnea Costachi | Theodoros Theodoulidis | 1-0 | 18 | Open |
| 2027 | 2017-07-14 | 10th Paracin Summer Open | Paracin SRB | 9.1 | Lazar Nestorovic | Mihnea Costachi | 1/2-1/2 | 20 | Open |
| 2028 | 2017-07-13 | 10th Paracin Summer Open | Paracin SRB | 8.11 | Mihnea Costachi | Nikola Nestorovic | 1/2-1/2 | 35 | Open |
| 2029 | 2017-07-10 | 10th Paracin Summer Open | Paracin SRB | 4.14 | Mihnea Costachi | David Sarenac | 0-1 | 73 | Open |
| 2030 | 2017-06-05 | 18th ch-EUR Indiv 2017 | Minsk BLR | 6.71 | Mihnea Costachi | Kirill Alekseenko | 0-1 | 99 | Open |
| 2031 | 2017-06-03 | 18th ch-EUR Indiv 2017 | Minsk BLR | 5.36 | Marin Bosiocic | Mihnea Costachi | 1-0 | 53 | Open |
| 2032 | 2017-06-02 | 18th ch-EUR Indiv 2017 | Minsk BLR | 4.66 | Mihnea Costachi | Daniele Vocaturo | 1-0 | 58 | Open |
| 2033 | 2017-05-30 | 18th ch-EUR Indiv 2017 | Minsk BLR | 1.4 | Yuriy Kryvoruchko | Mihnea Costachi | 1-0 | 51 | Open |
| 2034 | 2017-04-30 | World Schools U17 2017 | Iasi ROU | 9.3 | Mihnea Costachi | Vlad-George Zubcu | 1/2-1/2 | 41 | Open |
| 2035 | 2017-04-29 | World Schools U17 2017 | Iasi ROU | 8.2 | Batuhan Ozen | Mihnea Costachi | 1-0 | 71 | Open |
| 2036 | 2017-04-28 | World Schools U17 2017 | Iasi ROU | 7.2 | Mihnea Costachi | Alexandru Calin | 1-0 | 19 | Open |
| 2037 | 2017-04-27 | World Schools U17 2017 | Iasi ROU | 6.1 | Andrei Macovei | Mihnea Costachi | 1/2-1/2 | 35 | Open |
| 2038 | 2017-04-26 | World Schools U17 2017 | Iasi ROU | 5.2 | Mihnea Costachi | Khazar Babazada | 1-0 | 53 | Open |
| 2039 | 2017-04-25 | World Schools U17 2017 | Iasi ROU | 4.3 | Abhimanyu Banerjee | Mihnea Costachi | 0-1 | 46 | Open |
| 2040 | 2017-04-24 | World Schools U17 2017 | Iasi ROU | 3.3 | Mihnea Costachi | Victor Vasiesiu | 1/2-1/2 | 50 | Open |
| 2041 | 2017-04-24 | World Schools U17 2017 | Iasi ROU | 2.5 | Alexandru-Gabriel Hriscu | Mihnea Costachi | 0-1 | 36 | Open |
| 2042 | 2017-04-23 | World Schools U17 2017 | Iasi ROU | 1.1 | Mihnea Costachi | Farhan Kazimov | 1/2-1/2 | 98 | Open |
| 2043 | 2017-04-02 | ch-ROU 2017 | Calimanesti-Caciulata ROU | 9.9 | Robert-Daniel Pisu | Mihnea Costachi | 0-1 | 38 | Open |
| 2044 | 2017-04-01 | ch-ROU 2017 | Calimanesti-Caciulata ROU | 8.6 | Mihnea Costachi | Alexandru-Vasile David | 1/2-1/2 | 45 | Open |
| 2045 | 2017-03-31 | ch-ROU 2017 | Calimanesti-Caciulata ROU | 7.9 | Andrei-Theodor Dolana | Mihnea Costachi | 1/2-1/2 | 44 | Open |
| 2046 | 2017-03-30 | ch-ROU 2017 | Calimanesti-Caciulata ROU | 6.1 | Mihnea Costachi | Mihai Ionescu | 1-0 | 35 | Open |
| 2047 | 2017-03-29 | ch-ROU 2017 | Calimanesti-Caciulata ROU | 5.3 | Constantin Lupulescu | Mihnea Costachi | 1-0 | 71 | Open |
| 2048 | 2017-03-28 | ch-ROU 2017 | Calimanesti-Caciulata ROU | 4.11 | Mihnea Costachi | Alin Toma Andreica | 1-0 | 25 | Open |
| 2049 | 2017-03-27 | ch-ROU 2017 | Calimanesti-Caciulata ROU | 3.3 | Bogdan-Daniel Deac | Mihnea Costachi | 1-0 | 47 | Open |
| 2050 | 2017-03-26 | ch-ROU 2017 | Calimanesti-Caciulata ROU | 2.11 | Mihnea Costachi | Alexandru-Bogdan Banzea | 1-0 | 29 | Open |
| 2051 | 2017-03-25 | ch-ROU 2017 | Calimanesti-Caciulata ROU | 1.12 | Cosmin Gulie | Mihnea Costachi | 0-1 | 80 | Open |
| 2052 | 2017-02-26 | Graz Open A 2017 | Graz AUT | 9.19 | Peter Kokol | Mihnea Costachi | 0-1 | 55 | Open |
| 2053 | 2017-02-25 | Graz Open A 2017 | Graz AUT | 8.18 | Mihnea Costachi | Qilin Bao | 1/2-1/2 | 57 | Open |
| 2054 | 2017-02-24 | Graz Open A 2017 | Graz AUT | 7.5 | Evgeny Postny | Mihnea Costachi | 1-0 | 25 | Open |
| 2055 | 2017-02-24 | Graz Open A 2017 | Graz AUT | 6.5 | Mihnea Costachi | Baris Esen | 1/2-1/2 | 60 | Open |
| 2056 | 2017-02-23 | Graz Open A 2017 | Graz AUT | 5.4 | Roven Vogel | Mihnea Costachi | 1/2-1/2 | 23 | Open |
| 2057 | 2017-02-22 | Graz Open A 2017 | Graz AUT | 4.6 | Mihnea Costachi | Mustafa Yilmaz | 1-0 | 46 | Open |
| 2058 | 2017-02-22 | Graz Open A 2017 | Graz AUT | 3.1 | Markus Ragger | Mihnea Costachi | 1/2-1/2 | 60 | Open |
| 2059 | 2017-02-21 | Graz Open A 2017 | Graz AUT | 2.26 | Mihnea Costachi | Praveen Kumar C | 1-0 | 23 | Open |
| 2060 | 2017-02-20 | Graz Open A 2017 | Graz AUT | 1.26 | Lukas Leisch | Mihnea Costachi | 0-1 | 43 | Open |
| 2061 | 2016-11-27 | TCh-ROU Superliga 2016 | Calimanesti-Caciulata ROU | 9.2 | Vladimir Baklan | Mihnea Costachi | 1/2-1/2 | 55 | Open |
| 2062 | 2016-11-26 | TCh-ROU Superliga 2016 | Calimanesti-Caciulata ROU | 8.5 | Mihnea Costachi | Razvan-Stefan Dicu | 1/2-1/2 | 31 | Open |
| 2063 | 2016-11-25 | TCh-ROU Superliga 2016 | Calimanesti-Caciulata ROU | 7.1 | Mihnea Costachi | Constantin Lupulescu | 1/2-1/2 | 48 | Open |
| 2064 | 2016-11-24 | TCh-ROU Superliga 2016 | Calimanesti-Caciulata ROU | 6.5 | Viorel Iordachescu | Mihnea Costachi | 1-0 | 69 | Open |
| 2065 | 2016-11-23 | TCh-ROU Superliga 2016 | Calimanesti-Caciulata ROU | 5.2 | Mihnea Costachi | Adrian Musat | 1/2-1/2 | 83 | Open |
| 2066 | 2016-11-22 | TCh-ROU Superliga 2016 | Calimanesti-Caciulata ROU | 4.4 | Levente Vajda | Mihnea Costachi | 1-0 | 36 | Open |
| 2067 | 2016-11-21 | TCh-ROU Superliga 2016 | Calimanesti-Caciulata ROU | 3.3 | Mihnea Costachi | Teodor Anton | 1/2-1/2 | 70 | Open |
| 2068 | 2016-11-20 | TCh-ROU Superliga 2016 | Calimanesti-Caciulata ROU | 2.3 | Mihai-Eugen Bida | Mihnea Costachi | 1/2-1/2 | 17 | Open |
| 2069 | 2016-11-19 | TCh-ROU Superliga 2016 | Calimanesti-Caciulata ROU | 1.4 | Mihnea Costachi | Boris Itkis | 1/2-1/2 | 31 | Open |
| 2070 | 2016-11-13 | Serbian Open 2016 | Novi Sad SRB | 9.1 | Ivan Titov | Mihnea Costachi | 0-1 | 52 | Open |
| 2071 | 2016-11-12 | Serbian Open 2016 | Novi Sad SRB | 8.12 | Mihnea Costachi | Rakesh Kumar Jena | 1-0 | 31 | Open |
| 2072 | 2016-11-11 | Serbian Open 2016 | Novi Sad SRB | 7.14 | Raja Harshit | Mihnea Costachi | 1/2-1/2 | 15 | Open |
| 2073 | 2016-11-10 | Serbian Open 2016 | Novi Sad SRB | 6.17 | Mihnea Costachi | Velimir Ivic | 1-0 | 32 | Open |
| 2074 | 2016-11-09 | Serbian Open 2016 | Novi Sad SRB | 5.31 | Stevan Jovic | Mihnea Costachi | 0-1 | 25 | Open |
| 2075 | 2016-11-08 | Serbian Open 2016 | Novi Sad SRB | 4.36 | Mihnea Costachi | Mogens Thuesen | 1/2-1/2 | 27 | Open |
| 2076 | 2016-11-07 | Serbian Open 2016 | Novi Sad SRB | 3.17 | Turkan Mamedjarova | Mihnea Costachi | 1-0 | 26 | Open |
| 2077 | 2016-11-07 | Serbian Open 2016 | Novi Sad SRB | 2.16 | Mihnea Costachi | Yuriy Krykun | 1/2-1/2 | 18 | Open |
| 2078 | 2016-11-06 | Serbian Open 2016 | Novi Sad SRB | 1.19 | Borisa Divljan | Mihnea Costachi | 0-1 | 42 | Open |
| 2079 | 2016-10-03 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 11.4 | Mihnea Costachi | Arash Tahbaz | 1-0 | 36 | Open |
| 2080 | 2016-10-02 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 10.5 | Semen Elistratov | Mihnea Costachi | 0-1 | 35 | Open |
| 2081 | 2016-10-01 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 9.7 | Mihnea Costachi | Yi Zhu | 1-0 | 32 | Open |
| 2082 | 2016-09-30 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 8.9 | Timur Trubchaninov | Mihnea Costachi | 1/2-1/2 | 41 | Open |
| 2083 | 2016-09-29 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 7.5 | Mihnea Costachi | Kaumandur Srihari Raghunandan | 0-1 | 32 | Open |
| 2084 | 2016-09-28 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 6.5 | Bahadir Ozen | Mihnea Costachi | 1/2-1/2 | 27 | Open |
| 2085 | 2016-09-26 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 5.7 | Mihnea Costachi | Florian Mesaros | 1-0 | 71 | Open |
| 2086 | 2016-09-25 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 4.12 | Bryce Tiglon | Mihnea Costachi | 0-1 | 35 | Open |
| 2087 | 2016-09-24 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 3.12 | Mihnea Costachi | Andrey Mustafin | 1/2-1/2 | 37 | Open |
| 2088 | 2016-09-23 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 2.11 | Tran Minh Thang | Mihnea Costachi | 1/2-1/2 | 17 | Open |
| 2089 | 2016-09-22 | World Youth Open U16 2016 | Khanty-Mansiysk RUS | 1.13 | Mihnea Costachi | Fahim Mohammad | 1-0 | 13 | Open |
| 2090 | 2016-08-27 | 26th EY BU16 2016 | Prague CZE | 9.12 | Alexandru-Bogdan Banzea | Mihnea Costachi | 0-1 | 27 | Open |
| 2091 | 2016-08-26 | 26th EY BU16 2016 | Prague CZE | 8.11 | Mihnea Costachi | Johannes Haug | 1/2-1/2 | 48 | Open |
| 2092 | 2016-08-25 | 26th EY BU16 2016 | Prague CZE | 7.3 | Mihnea Costachi | Martin Petrov | 0-1 | 47 | Open |
| 2093 | 2016-08-24 | 26th EY BU16 2016 | Prague CZE | 6.8 | Gerard Ayats Llobera | Mihnea Costachi | 0-1 | 42 | Open |
| 2094 | 2016-08-22 | 26th EY BU16 2016 | Prague CZE | 5.5 | Toni Lazov | Mihnea Costachi | 1/2-1/2 | 95 | Open |
| 2095 | 2016-08-21 | 26th EY BU16 2016 | Prague CZE | 4.12 | Mihnea Costachi | Timur Trubchaninov | 1-0 | 54 | Open |
| 2096 | 2016-08-20 | 26th EY BU16 2016 | Prague CZE | 3.23 | Mihnea Costachi | Declan Shafi | 1-0 | 28 | Open |
| 2097 | 2016-08-19 | 26th EY BU16 2016 | Prague CZE | 2.41 | Andrei Skladtshikov | Mihnea Costachi | 0-1 | 27 | Open |
| 2098 | 2016-08-18 | 26th EY BU16 2016 | Prague CZE | 1.5 | Mihnea Costachi | Isak Storme | 0-1 | 51 | Open |
| 2099 | 2016-08-12 | 9th Arad Open 2016 | Arad ROU | 9.2 | Vlad-Cristian Jianu | Mihnea Costachi | 1/2-1/2 | 22 | Open |
| 2100 | 2016-08-11 | 9th Arad Open 2016 | Arad ROU | 8.2 | Mihnea Costachi | Radoslav Dimitrov | 1/2-1/2 | 45 | Open |
| 2101 | 2016-08-10 | 9th Arad Open 2016 | Arad ROU | 7.7 | Irina Ionescu | Mihnea Costachi | 0-1 | 44 | Open |
| 2102 | 2016-08-10 | 9th Arad Open 2016 | Arad ROU | 6.7 | Mihnea Costachi | Adela Velikic | 1-0 | 30 | Open |
| 2103 | 2016-08-09 | 9th Arad Open 2016 | Arad ROU | 5.1 | Paul-Cristian Rusan | Mihnea Costachi | 0-1 | 64 | Open |
| 2104 | 2016-08-08 | 9th Arad Open 2016 | Arad ROU | 4.1 | Mihnea Costachi | Alexandr Ogleznev | 1/2-1/2 | 87 | Open |
| 2105 | 2016-08-07 | 9th Arad Open 2016 | Arad ROU | 3.2 | Mihai-Vlad Ciorica | Mihnea Costachi | 0-1 | 54 | Open |
| 2106 | 2016-08-07 | 9th Arad Open 2016 | Arad ROU | 2.11 | Mihnea Costachi | Victor Vasiesiu | 1/2-1/2 | 28 | Open |
| 2107 | 2016-08-06 | 9th Arad Open 2016 | Arad ROU | 1.11 | Robert-Alexandru Stancu | Mihnea Costachi | 0-1 | 52 | Open |
| 2108 | 2016-07-29 | World Youth U16 Olympiad | Poprad SVK | 9.1 | Parham Maghsoodloo | Mihnea Costachi | 1/2-1/2 | 68 | Open |
| 2109 | 2016-07-28 | World Youth U16 Olympiad | Poprad SVK | 8.4 | Mihnea Costachi | Yan Liu | 1/2-1/2 | 28 | Open |
| 2110 | 2016-07-27 | World Youth U16 Olympiad | Poprad SVK | 7.7 | Stavroula Tsolakidou | Mihnea Costachi | 1/2-1/2 | 47 | Open |
| 2111 | 2016-07-27 | World Youth U16 Olympiad | Poprad SVK | 6.11 | Mihnea Costachi | Kris Chan | 1-0 | 49 | Open |
| 2112 | 2016-07-25 | World Youth U16 Olympiad | Poprad SVK | 5.11 | Alexander Riess | Mihnea Costachi | 1/2-1/2 | 39 | Open |
| 2113 | 2016-07-24 | World Youth U16 Olympiad | Poprad SVK | 4.4 | Mihnea Costachi | Kaumandur Srihari Raghunandan | 0-1 | 54 | Open |
| 2114 | 2016-07-23 | World Youth U16 Olympiad | Poprad SVK | 3.5 | Roven Vogel | Mihnea Costachi | 1/2-1/2 | 13 | Open |
| 2115 | 2016-07-23 | World Youth U16 Olympiad | Poprad SVK | 2.6 | Jakob Bratkovic | Mihnea Costachi | 0-1 | 36 | Open |
| 2116 | 2016-07-22 | World Youth U16 Olympiad | Poprad SVK | 1.11 | Mihnea Costachi | Murad Abdulla | 1-0 | 58 | Open |
| 2117 | 2016-07-06 | 26th Seacoast Trophy 2016 | Eforie Nord ROU | 10.3 | Sergiu-Gabriel Herea | Mihnea Costachi | 1/2-1/2 | 45 | Open |
| 2118 | 2016-07-05 | 26th Seacoast Trophy 2016 | Eforie Nord ROU | 9.2 | Mihnea Costachi | Vasile Sanduleac | 1/2-1/2 | 95 | Open |
| 2119 | 2016-07-04 | 26th Seacoast Trophy 2016 | Eforie Nord ROU | 8.3 | Ruslan Soltanici | Mihnea Costachi | 1/2-1/2 | 32 | Open |
| 2120 | 2016-07-03 | 26th Seacoast Trophy 2016 | Eforie Nord ROU | 7.2 | Mihnea Costachi | Nichita Morozov | 1/2-1/2 | 38 | Open |
| 2121 | 2016-07-02 | 26th Seacoast Trophy 2016 | Eforie Nord ROU | 6.3 | Matthias Thesing | Mihnea Costachi | 0-1 | 44 | Open |
| 2122 | 2016-07-01 | 26th Seacoast Trophy 2016 | Eforie Nord ROU | 5.5 | Mihnea Costachi | Cosmin Vasiliu | 1-0 | 29 | Open |
| 2123 | 2016-06-30 | 26th Seacoast Trophy 2016 | Eforie Nord ROU | 4.3 | Vadim Chircu | Mihnea Costachi | 1/2-1/2 | 48 | Open |
| 2124 | 2016-06-29 | 26th Seacoast Trophy 2016 | Eforie Nord ROU | 3.3 | Mihnea Costachi | Matei-Ionut Acsinte | 1/2-1/2 | 17 | Open |
| 2125 | 2016-06-28 | 26th Seacoast Trophy 2016 | Eforie Nord ROU | 2.3 | Andrei Amarita | Mihnea Costachi | 0-1 | 16 | Open |
| 2126 | 2016-06-27 | 26th Seacoast Trophy 2016 | Eforie Nord ROU | 1.3 | Mihnea Costachi | Arghil Marchis | 1-0 | 44 | Open |
| 2127 | 2016-06-20 | 3rd Iasi Open 2016 | Iasi ROU | 9.4 | Mihnea Costachi | Vladislav Nevednichy | 1/2-1/2 | 64 | Open |
| 2128 | 2016-06-19 | 3rd Iasi Open 2016 | Iasi ROU | 8.5 | Kidambi Sundararajan | Mihnea Costachi | 1/2-1/2 | 31 | Open |
| 2129 | 2016-06-18 | 3rd Iasi Open 2016 | Iasi ROU | 7.4 | Mihnea Costachi | Mikita Mayorau | 1/2-1/2 | 35 | Open |
| 2130 | 2016-06-17 | 3rd Iasi Open 2016 | Iasi ROU | 6.4 | Andrei Istratescu | Mihnea Costachi | 1/2-1/2 | 40 | Open |
| 2131 | 2016-06-16 | 3rd Iasi Open 2016 | Iasi ROU | 5.2 | Mihnea Costachi | Alexander Zubarev | 1/2-1/2 | 16 | Open |
| 2132 | 2016-06-15 | 3rd Iasi Open 2016 | Iasi ROU | 4.5 | George Stoleriu | Mihnea Costachi | 0-1 | 54 | Open |
| 2133 | 2016-06-04 | 35th Zalakaros Open 2016 | Zalakaros HUN | 9.2 | Bryan Smith | Mihnea Costachi | 1/2-1/2 | 8 | Open |
| 2134 | 2016-06-03 | 35th Zalakaros Open 2016 | Zalakaros HUN | 8.11 | Mihnea Costachi | Volodymyr Onyshchuk | 0-1 | 54 | Open |
| 2135 | 2016-06-02 | 35th Zalakaros Open 2016 | Zalakaros HUN | 7.9 | Milos Perunovic | Mihnea Costachi | 1/2-1/2 | 41 | Open |
| 2136 | 2016-06-01 | 35th Zalakaros Open 2016 | Zalakaros HUN | 6.1 | Mihnea Costachi | Jozsef Horvath | 1/2-1/2 | 21 | Open |
| 2137 | 2016-05-31 | 35th Zalakaros Open 2016 | Zalakaros HUN | 5.18 | Gergely Aczel | Mihnea Costachi | 0-1 | 40 | Open |
| 2138 | 2016-05-30 | 35th Zalakaros Open 2016 | Zalakaros HUN | 4.37 | Mihnea Costachi | Luis Laliena Solanes | 1-0 | 38 | Open |
| 2139 | 2016-05-29 | 35th Zalakaros Open 2016 | Zalakaros HUN | 3.38 | Emil Szalanczi | Mihnea Costachi | 1/2-1/2 | 129 | Open |
| 2140 | 2016-05-28 | 35th Zalakaros Open 2016 | Zalakaros HUN | 2.9 | Mihnea Costachi | Levente Vajda | 0-1 | 64 | Open |
| 2141 | 2016-05-27 | 35th Zalakaros Open 2016 | Zalakaros HUN | 1.55 | Dimitrios Balokas | Mihnea Costachi | 0-1 | 66 | Open |
| 2142 | 2016-04-10 | ch-ROU 2016 | Olanesti ROU | 9.1 | Mihnea Costachi | Matei-Ionut Acsinte | 1-0 | 25 | Open |
| 2143 | 2016-04-09 | ch-ROU 2016 | Olanesti ROU | 8.7 | Alin-Mile Berescu | Mihnea Costachi | 1-0 | 56 | Open |
| 2144 | 2016-04-08 | ch-ROU 2016 | Olanesti ROU | 7.4 | Mihnea Costachi | Tiberiu-Marian Georgescu | 1/2-1/2 | 39 | Open |
| 2145 | 2016-04-07 | ch-ROU 2016 | Olanesti ROU | 6.8 | Ovidiu-Emanuel Chifor | Mihnea Costachi | 0-1 | 34 | Open |
| 2146 | 2016-04-06 | ch-ROU 2016 | Olanesti ROU | 5.5 | Mihnea Costachi | Bogdan-Daniel Deac | 0-1 | 65 | Open |
| 2147 | 2016-04-05 | ch-ROU 2016 | Olanesti ROU | 4.1 | Mihnea Costachi | Viorel-Adrian Ciobanu | 1-0 | 55 | Open |
| 2148 | 2016-04-04 | ch-ROU 2016 | Olanesti ROU | 3.3 | Lucian-Costin Miron | Mihnea Costachi | 1-0 | 36 | Open |
| 2149 | 2016-04-03 | ch-ROU 2016 | Olanesti ROU | 2.8 | Mihnea Costachi | Jenica Afloarei | 1-0 | 21 | Open |
| 2150 | 2016-04-02 | ch-ROU 2016 | Olanesti ROU | 1.13 | Robert-Daniel Pisu | Mihnea Costachi | 0-1 | 28 | Open |
| 2151 | 2016-03-23 | Romanian Open 2016 | Alba Iulia ROU | 9.9 | Daniel Baratosi | Mihnea Costachi | 1/2-1/2 | 25 | Open |
| 2152 | 2016-03-22 | Romanian Open 2016 | Alba Iulia ROU | 8.1 | Mihnea Costachi | Adrian-Marian Petrisor | 1/2-1/2 | 25 | Open |
| 2153 | 2016-03-21 | Romanian Open 2016 | Alba Iulia ROU | 7.4 | Bogdan-Daniel Deac | Mihnea Costachi | 1-0 | 88 | Open |
| 2154 | 2016-03-20 | Romanian Open 2016 | Alba Iulia ROU | 6.5 | Mihnea Costachi | Gergely-Andras-Gyula Szabo | 1/2-1/2 | 23 | Open |
| 2155 | 2016-03-19 | Romanian Open 2016 | Alba Iulia ROU | 5.9 | Mihai Ionescu | Mihnea Costachi | 0-1 | 56 | Open |
| 2156 | 2016-03-19 | Romanian Open 2016 | Alba Iulia ROU | 4.1 | Mihnea Costachi | Robert-Paul Nastase | 1/2-1/2 | 38 | Open |
| 2157 | 2016-03-18 | Romanian Open 2016 | Alba Iulia ROU | 3.8 | Adrian-Simion Secheres | Mihnea Costachi | 1/2-1/2 | 21 | Open |
| 2158 | 2016-03-17 | Romanian Open 2016 | Alba Iulia ROU | 2.12 | Mihnea Costachi | George Ileana | 1-0 | 42 | Open |
| 2159 | 2016-03-16 | Romanian Open 2016 | Alba Iulia ROU | 1.14 | Iustin Ciorgovean | Mihnea Costachi | 1-0 | 59 | Open |
| 2160 | 2016-02-21 | Bunratty Masters 2016 | Bunratty IRL | 6.7 | Mihnea Costachi | Thomas E Rendle | 1/2-1/2 | 20 | Open |
| 2161 | 2016-02-21 | Bunratty Masters 2016 | Bunratty IRL | 5.8 | Alan J Walton | Mihnea Costachi | 1/2-1/2 | 53 | Open |
| 2162 | 2016-02-20 | Bunratty Masters 2016 | Bunratty IRL | 4.4 | Mihnea Costachi | Mark Heidenfeld | 1/2-1/2 | 49 | Open |
| 2163 | 2016-02-20 | Bunratty Masters 2016 | Bunratty IRL | 3.5 | Gawain C B Maroroa Jones | Mihnea Costachi | 1/2-1/2 | 71 | Open |
| 2164 | 2016-02-20 | Bunratty Masters 2016 | Bunratty IRL | 2.9 | Mihnea Costachi | Tom O`Gorman | 1/2-1/2 | 81 | Open |
| 2165 | 2016-02-19 | Bunratty Masters 2016 | Bunratty IRL | 1.9 | Manuel Cabanas Jimenez | Mihnea Costachi | 0-1 | 22 | Open |
| 2166 | 2015-11-05 | World Youth Boys U16 2015 | Porto Carras GRE | 11.9 | Alejandro 2000 Perez Garcia | Mihnea Costachi | 1/2-1/2 | 37 | Open |
| 2167 | 2015-11-04 | World Youth Boys U16 2015 | Porto Carras GRE | 10.11 | Mihnea Costachi | Daniel Kozusek | 1/2-1/2 | 40 | Open |
| 2168 | 2015-11-03 | World Youth Boys U16 2015 | Porto Carras GRE | 9.4 | Parham Maghsoodloo | Mihnea Costachi | 1-0 | 38 | Open |
| 2169 | 2015-11-02 | World Youth Boys U16 2015 | Porto Carras GRE | 8.9 | Mihnea Costachi | Sebastian Mihajlov | 1-0 | 29 | Open |
| 2170 | 2015-11-01 | World Youth Boys U16 2015 | Porto Carras GRE | 7.6 | Muthaiah AL | Mihnea Costachi | 1/2-1/2 | 64 | Open |
| 2171 | 2015-10-31 | World Youth Boys U16 2015 | Porto Carras GRE | 6.9 | Mihnea Costachi | Jesper Sondergaard Thybo | 1-0 | 44 | Open |
| 2172 | 2015-10-29 | World Youth Boys U16 2015 | Porto Carras GRE | 5.6 | Cameron Wheeler | Mihnea Costachi | 1-0 | 57 | Open |
| 2173 | 2015-10-28 | World Youth Boys U16 2015 | Porto Carras GRE | 4.3 | Mihnea Costachi | Zhandos Agmanov | 1/2-1/2 | 37 | Open |
| 2174 | 2015-10-27 | World Youth Boys U16 2015 | Porto Carras GRE | 3.5 | Benjamin Haldorsen | Mihnea Costachi | 0-1 | 47 | Open |
| 2175 | 2015-10-26 | World Youth Boys U16 2015 | Porto Carras GRE | 2.1 | Mihnea Costachi | John Doknjas | 1-0 | 48 | Open |
| 2176 | 2015-10-25 | World Youth Boys U16 2015 | Porto Carras GRE | 1.13 | Airat Sadubayev | Mihnea Costachi | 0-1 | 93 | Open |
| 2177 | 2015-10-11 | TCh-ROU Superliga 2015 | Mamaia ROU | 9.5 | Mihnea Costachi | Dorian Rogozenco | 1/2-1/2 | 54 | Open |
| 2178 | 2015-10-10 | TCh-ROU Superliga 2015 | Mamaia ROU | 8.2 | Victor Vasiesiu | Mihnea Costachi | 0-1 | 46 | Open |
| 2179 | 2015-10-09 | TCh-ROU Superliga 2015 | Mamaia ROU | 7.4 | Mihnea Costachi | Ruslan Soltanici | 0-1 | 57 | Open |
| 2180 | 2015-10-08 | TCh-ROU Superliga 2015 | Mamaia ROU | 6.3 | Boris Itkis | Mihnea Costachi | 1/2-1/2 | 18 | Open |
| 2181 | 2015-10-07 | TCh-ROU Superliga 2015 | Mamaia ROU | 5.3 | Viktor Erdos | Mihnea Costachi | 1/2-1/2 | 55 | Open |
| 2182 | 2015-10-06 | TCh-ROU Superliga 2015 | Mamaia ROU | 4.4 | Alexei Fedorov | Mihnea Costachi | 1-0 | 42 | Open |
| 2183 | 2015-10-05 | TCh-ROU Superliga 2015 | Mamaia ROU | 3.2 | Mihnea Costachi | Alexandru Manea | 1/2-1/2 | 57 | Open |
| 2184 | 2015-10-04 | TCh-ROU Superliga 2015 | Mamaia ROU | 2.5 | Florin-George Vladescu | Mihnea Costachi | 0-1 | 26 | Open |
| 2185 | 2015-10-03 | TCh-ROU Superliga 2015 | Mamaia ROU | 1.1 | Mircea-Emilian Parligras | Mihnea Costachi | 1/2-1/2 | 37 | Open |
| 2186 | 2015-09-30 | 25th EY BU16 2015 | Porec CRO | 9.8 | Mihnea Costachi | Alexandru-Bogdan Banzea | 1-0 | 42 | Open |
| 2187 | 2015-09-29 | 25th EY BU16 2015 | Porec CRO | 8.3 | Guillaume Philippe | Mihnea Costachi | 1-0 | 36 | Open |
| 2188 | 2015-09-28 | 25th EY BU16 2015 | Porec CRO | 7.2 | Mihnea Costachi | Tuna Tuncer | 1/2-1/2 | 30 | Open |
| 2189 | 2015-09-27 | 25th EY BU16 2015 | Porec CRO | 6.3 | Nikolas Theodorou | Mihnea Costachi | 1/2-1/2 | 60 | Open |
| 2190 | 2015-09-25 | 25th EY BU16 2015 | Porec CRO | 5.2 | Mihnea Costachi | Lorenzo Lodici | 1-0 | 37 | Open |
| 2191 | 2015-09-24 | 25th EY BU16 2015 | Porec CRO | 4.1 | Andreas Kelires | Mihnea Costachi | 1-0 | 33 | Open |
| 2192 | 2015-09-23 | 25th EY BU16 2015 | Porec CRO | 3.3 | Mihnea Costachi | Peter Ugroczky | 1-0 | 39 | Open |
| 2193 | 2015-09-22 | 25th EY BU16 2015 | Porec CRO | 2.3 | Mladen Rajkovic | Mihnea Costachi | 0-1 | 68 | Open |
| 2194 | 2015-09-21 | 25th EY BU16 2015 | Porec CRO | 1.5 | Mihnea Costachi | Ermin Sinanovic | 1-0 | 26 | Open |
| 2195 | 2015-08-12 | 8th Arad Open 2015 | Arad ROU | 9.4 | Mihnea Costachi | Viorel Iordachescu | 1/2-1/2 | 44 | Open |
| 2196 | 2015-08-11 | 8th Arad Open 2015 | Arad ROU | 8.8 | Tiberiu-Marian Georgescu | Mihnea Costachi | 1/2-1/2 | 146 | Open |
| 2197 | 2015-08-10 | 8th Arad Open 2015 | Arad ROU | 7.6 | Mihnea Costachi | Ivajlo Enchev | 1/2-1/2 | 23 | Open |
| 2198 | 2015-08-09 | 8th Arad Open 2015 | Arad ROU | 6.8 | Vladimir Dobrov | Mihnea Costachi | 0-1 | 87 | Open |
| 2199 | 2015-08-08 | 8th Arad Open 2015 | Arad ROU | 4.8 | Bogdan-Daniel Deac | Mihnea Costachi | 1-0 | 33 | Open |
| 2200 | 2015-08-07 | 8th Arad Open 2015 | Arad ROU | 3.16 | Mihnea Costachi | Vlad-Ionut Jinga | 1-0 | 17 | Open |
| 2201 | 2015-07-31 | 6th Vojvodina Open 2015 | Novi Sad SRB | 9.3 | Mihnea Costachi | Sinisa Drazic | 1/2-1/2 | 63 | Open |
| 2202 | 2015-07-30 | 6th Vojvodina Open 2015 | Novi Sad SRB | 8.5 | Mihnea Costachi | Radosav Jovicic | 1-0 | 25 | Open |
| 2203 | 2015-07-29 | 6th Vojvodina Open 2015 | Novi Sad SRB | 7.7 | Jan Banas | Mihnea Costachi | 0-1 | 22 | Open |
| 2204 | 2015-07-28 | 6th Vojvodina Open 2015 | Novi Sad SRB | 6.11 | Mihnea Costachi | Sinisa Kovacevic | 1-0 | 36 | Open |
| 2205 | 2015-07-27 | 6th Vojvodina Open 2015 | Novi Sad SRB | 5.22 | Dragan Kozomora | Mihnea Costachi | 0-1 | 42 | Open |
| 2206 | 2015-07-26 | 6th Vojvodina Open 2015 | Novi Sad SRB | 4.13 | Mihnea Costachi | Adela Velikic | 0-1 | 86 | Open |
| 2207 | 2015-07-26 | 6th Vojvodina Open 2015 | Novi Sad SRB | 3.1 | Miroslav M Mihalj | Mihnea Costachi | 1/2-1/2 | 24 | Open |
| 2208 | 2015-07-25 | 6th Vojvodina Open 2015 | Novi Sad SRB | 2.14 | Mihnea Costachi | Teodora Injac | 1-0 | 31 | Open |
| 2209 | 2015-07-25 | 6th Vojvodina Open 2015 | Novi Sad SRB | 1.16 | Vladan Petrovic | Mihnea Costachi | 0-1 | 60 | Open |
| 2210 | 2015-07-02 | 25th Seacoast Trophy 2015 | Eforie Nord ROU | 10.5 | Mihnea Costachi | 902683 | 0-1 | 59 | Open |
| 2211 | 2015-07-01 | 25th Seacoast Trophy 2015 | Eforie Nord ROU | 9.2 | Suzana Maksimovic | Mihnea Costachi | 1/2-1/2 | 56 | Open |
| 2212 | 2015-06-30 | 25th Seacoast Trophy 2015 | Eforie Nord ROU | 8.3 | Mihnea Costachi | Matthias Thesing | 1/2-1/2 | 37 | Open |
| 2213 | 2015-06-29 | 25th Seacoast Trophy 2015 | Eforie Nord ROU | 7.2 | Corina-Isabela Peptan | Mihnea Costachi | 1/2-1/2 | 72 | Open |
| 2214 | 2015-06-28 | 25th Seacoast Trophy 2015 | Eforie Nord ROU | 6.2 | Mihnea Costachi | Vladislav Nevednichy | 1/2-1/2 | 21 | Open |
| 2215 | 2015-06-27 | 25th Seacoast Trophy 2015 | Eforie Nord ROU | 5.1 | Costica-Ciprian Nanu | Mihnea Costachi | 1/2-1/2 | 21 | Open |
| 2216 | 2015-06-26 | 25th Seacoast Trophy 2015 | Eforie Nord ROU | 4.4 | Mihnea Costachi | Nikita Chetrari | 1-0 | 33 | Open |
| 2217 | 2015-06-25 | 25th Seacoast Trophy 2015 | Eforie Nord ROU | 3.5 | 1217160 | Mihnea Costachi | 0-1 | 35 | Open |
| 2218 | 2015-06-24 | 25th Seacoast Trophy 2015 | Eforie Nord ROU | 2.5 | Mihnea Costachi | Eva Rendi | 1-0 | 32 | Open |
| 2219 | 2015-06-23 | 25th Seacoast Trophy 2015 | Eforie Nord ROU | 1.5 | Ilie Nicolescu | Mihnea Costachi | 0-1 | 19 | Open |
| 2220 | 2015-06-06 | Iasi Open 2015 | Iasi ROU | 9.11 | Mihnea Costachi | Emre Can | 1/2-1/2 | 59 | Open |
| 2221 | 2015-06-03 | Iasi Open 2015 | Iasi ROU | 6.12 | Artur Gabrielian | Mihnea Costachi | 1-0 | 65 | Open |
| 2222 | 2015-06-02 | Iasi Open 2015 | Iasi ROU | 5.12 | Mihnea Costachi | Marius Manolache | 1/2-1/2 | 34 | Open |
| 2223 | 2015-04-26 | ch-ROU 2015 | Calimanesti-Caciulata ROU | 9.6 | Teodor Anton | Mihnea Costachi | 1-0 | 49 | Open |
| 2224 | 2015-04-25 | ch-ROU 2015 | Calimanesti-Caciulata ROU | 8.7 | Mihnea Costachi | Alexandru Pop | 1-0 | 36 | Open |
| 2225 | 2015-04-24 | ch-ROU 2015 | Calimanesti-Caciulata ROU | 7.5 | Mihnea Costachi | Bogdan-Daniel Deac | 0-1 | 45 | Open |
| 2226 | 2015-04-23 | ch-ROU 2015 | Calimanesti-Caciulata ROU | 6.8 | Radu-Cristian Toma | Mihnea Costachi | 0-1 | 61 | Open |
| 2227 | 2015-04-22 | ch-ROU 2015 | Calimanesti-Caciulata ROU | 5.6 | Mihnea Costachi | Tiberiu-Marian Georgescu | 0-1 | 47 | Open |
| 2228 | 2015-04-21 | ch-ROU 2015 | Calimanesti-Caciulata ROU | 4.6 | Vladimir Doncea | Mihnea Costachi | 1/2-1/2 | 42 | Open |
| 2229 | 2015-04-20 | ch-ROU 2015 | Calimanesti-Caciulata ROU | 3.9 | Mihnea Costachi | George Ileana | 1-0 | 37 | Open |
| 2230 | 2015-04-19 | ch-ROU 2015 | Calimanesti-Caciulata ROU | 2.2 | Mihail Marin | Mihnea Costachi | 1-0 | 38 | Open |
| 2231 | 2015-04-18 | ch-ROU 2015 | Calimanesti-Caciulata ROU | 1.13 | Mihnea Costachi | Lehel Vrencian | 1-0 | 29 | Open |
| 2232 | 2015-02-08 | 37th Bulgarian Open 2015 | Plovdiv BUL | 9.1 | Mihnea Costachi | Veselin Pantev | 1/2-1/2 | 36 | Open |
| 2233 | 2015-02-06 | 37th Bulgarian Open 2015 | Plovdiv BUL | 7.6 | Mihnea Costachi | Dusan Popovic | 0-1 | 93 | Open |
| 2234 | 2015-02-05 | 37th Bulgarian Open 2015 | Plovdiv BUL | 6.8 | 900206 | Mihnea Costachi | 0-1 | 51 | Open |
| 2235 | 2015-02-02 | 37th Bulgarian Open 2015 | Plovdiv BUL | 3.1 | Mihnea Costachi | Vasil Spasov | 1/2-1/2 | 15 | Open |
| 2236 | 2015-01-19 | Open ch-Paracin 2015 | Paracin SRB | 7.1 | 900206 | Mihnea Costachi | 1/2-1/2 | 16 | Open |
| 2237 | 2015-01-18 | Open ch-Paracin 2015 | Paracin SRB | 6.3 | Mihnea Costachi | Annamaria Marjanovic | 1-0 | 24 | Open |
| 2238 | 2015-01-18 | Open ch-Paracin 2015 | Paracin SRB | 5.4 | Srdjan Cvetkovic | Mihnea Costachi | 1/2-1/2 | 18 | Open |
| 2239 | 2015-01-17 | Open ch-Paracin 2015 | Paracin SRB | 4.4 | Mihnea Costachi | Borisav Trifunovic | 1-0 | 54 | Open |
| 2240 | 2015-01-17 | Open ch-Paracin 2015 | Paracin SRB | 3.5 | Bozidar Ugrenovic | Mihnea Costachi | 1/2-1/2 | 80 | Open |
| 2241 | 2015-01-16 | Open ch-Paracin 2015 | Paracin SRB | 2.5 | Mihnea Costachi | Kosta Peev | 1-0 | 37 | Open |
| 2242 | 2015-01-15 | Open ch-Paracin 2015 | Paracin SRB | 1.6 | Slobodan Z Pavlovic | Mihnea Costachi | 0-1 | 0 | Open |
| 2243 | 2014-12-21 | World Youth U16 Olympiad | Gyor HUN | 10.4 | Mihnea Costachi | Richard Wang | 1/2-1/2 | 50 | Open |
| 2244 | 2014-12-20 | World Youth U16 Olympiad | Gyor HUN | 9.1 | Chithambaram VR. Aravindh | Mihnea Costachi | 1-0 | 59 | Open |
| 2245 | 2014-12-19 | World Youth U16 Olympiad | Gyor HUN | 8.4 | Mihnea Costachi | Armin Juhasz | 1/2-1/2 | 52 | Open |
| 2246 | 2014-12-18 | World Youth U16 Olympiad | Gyor HUN | 7.7 | Jergus Pechac | Mihnea Costachi | 1/2-1/2 | 51 | Open |
| 2247 | 2014-12-18 | World Youth U16 Olympiad | Gyor HUN | 6.2 | Mihnea Costachi | Parham Maghsoodloo | 0-1 | 54 | Open |
| 2248 | 2014-12-16 | World Youth U16 Olympiad | Gyor HUN | 5.7 | Mihnea Costachi | Jakub Kosakowski | 1-0 | 52 | Open |
| 2249 | 2014-12-15 | World Youth U16 Olympiad | Gyor HUN | 4.2 | Maxim Vavulin | Mihnea Costachi | 1-0 | 40 | Open |
| 2250 | 2014-12-14 | World Youth U16 Olympiad | Gyor HUN | 3.5 | Roven Vogel | Mihnea Costachi | 1/2-1/2 | 30 | Open |
| 2251 | 2014-12-14 | World Youth U16 Olympiad | Gyor HUN | 2.12 | Mihnea Costachi | Eyal Grinberg | 1/2-1/2 | 58 | Open |
| 2252 | 2014-12-13 | World Youth U16 Olympiad | Gyor HUN | 1.26 | Max Gedajlovic | Mihnea Costachi | 0-1 | 62 | Open |
| 2253 | 2014-11-22 | Kings Tournament Blitz | Bazna ROU | 9.2 | Mihnea Costachi | Hua Ni | 1/2-1/2 | 12 | Open |
| 2254 | 2014-11-22 | Kings Tournament Blitz | Bazna ROU | 8.4 | Mircea-Emilian Parligras | Mihnea Costachi | 1-0 | 58 | Open |
| 2255 | 2014-11-22 | Kings Tournament Blitz | Bazna ROU | 7.3 | Mihnea Costachi | Yue Wang | 0-1 | 40 | Open |
| 2256 | 2014-11-22 | Kings Tournament Blitz | Bazna ROU | 6.3 | Vladislav Nevednichy | Mihnea Costachi | 1-0 | 91 | Open |
| 2257 | 2014-11-22 | Kings Tournament Blitz | Bazna ROU | 5.4 | Mihnea Costachi | Constantin Lupulescu | 0-1 | 34 | Open |
| 2258 | 2014-11-22 | Kings Tournament Blitz | Bazna ROU | 4.2 | Yi Wei | Mihnea Costachi | 1-0 | 38 | Open |
| 2259 | 2014-11-22 | Kings Tournament Blitz | Bazna ROU | 3.5 | Mihnea Costachi | Vlad-Cristian Jianu | 0-1 | 47 | Open |
| 2260 | 2014-11-22 | Kings Tournament Blitz | Bazna ROU | 2.1 | Shanglei Lu | Mihnea Costachi | 1-0 | 36 | Open |
| 2261 | 2014-11-22 | Kings Tournament Blitz | Bazna ROU | 1.5 | Bogdan-Daniel Deac | Mihnea Costachi | 1-0 | 57 | Open |
| 2262 | 2014-11-16 | TCh-ROU 2014 | Calimanesti-Caciulata ROU | 9.2 | Mihnea Costachi | Petru-Sebastian Ursan | 1-0 | 31 | Open |
| 2263 | 2014-11-15 | TCh-ROU 2014 | Calimanesti-Caciulata ROU | 8.5 | Vlad-Ionut Stegariu | Mihnea Costachi | 1/2-1/2 | 38 | Open |
| 2264 | 2014-11-13 | TCh-ROU 2014 | Calimanesti-Caciulata ROU | 6.5 | Mihnea Costachi | Alexandru-Vasile David | 1/2-1/2 | 82 | Open |
| 2265 | 2014-11-11 | TCh-ROU 2014 | Calimanesti-Caciulata ROU | 4.4 | Mihnea Costachi | Radu-Marian Doros | 0-1 | 60 | Open |
| 2266 | 2014-11-09 | TCh-ROU 2014 | Calimanesti-Caciulata ROU | 2.3 | Mihnea Costachi | Riza Salim | 1/2-1/2 | 112 | Open |
| 2267 | 2014-09-29 | World Youth Boys U14 2014 | Durban RSA | 11.2 | Mihnea Costachi | Sergei Lobanov | 1/2-1/2 | 41 | Open |
| 2268 | 2014-09-28 | World Youth Boys U14 2014 | Durban RSA | 10.2 | Florian Mesaros | Mihnea Costachi | 0-1 | 34 | Open |
| 2269 | 2014-09-27 | World Youth Boys U14 2014 | Durban RSA | 9.1 | Mihnea Costachi | Yan Liu | 1/2-1/2 | 60 | Open |
| 2270 | 2014-09-26 | World Youth Boys U14 2014 | Durban RSA | 8.2 | Mihnea Costachi | M. Amin Tabatabaei | 1/2-1/2 | 23 | Open |
| 2271 | 2014-09-25 | World Youth Boys U14 2014 | Durban RSA | 7.4 | Dan Poleg | Mihnea Costachi | 0-1 | 67 | Open |
| 2272 | 2014-09-23 | World Youth Boys U14 2014 | Durban RSA | 6.2 | Mihnea Costachi | Haik M. Martirosyan | 1/2-1/2 | 19 | Open |
| 2273 | 2014-09-23 | World Youth Boys U14 2014 | Durban RSA | 5.2 | Harsha Bharathakoti | Mihnea Costachi | 1/2-1/2 | 20 | Open |
| 2274 | 2014-09-22 | World Youth Boys U14 2014 | Durban RSA | 4.3 | Mihnea Costachi | Yi Zhu | 1-0 | 68 | Open |
| 2275 | 2014-09-21 | World Youth Boys U14 2014 | Durban RSA | 3.5 | Jergus Pechac | Mihnea Costachi | 0-1 | 62 | Open |
| 2276 | 2014-09-21 | World Youth Boys U14 2014 | Durban RSA | 2.6 | Mihnea Costachi | Jakob Bratkovic | 1-0 | 39 | Open |
| 2277 | 2014-09-20 | World Youth Boys U14 2014 | Durban RSA | 1.6 | Waldi Van Der Lingen | Mihnea Costachi | 0-1 | 22 | Open |
| 2278 | 2014-08-10 | 7th Arad Open 2014 | Arad ROU | 9.8 | Dan Vasiesiu | Mihnea Costachi | 0-1 | 46 | Open |
| 2279 | 2014-08-09 | 7th Arad Open 2014 | Arad ROU | 8.13 | Mihnea Costachi | Adrian-Marian Petrisor | 1-0 | 28 | Open |
| 2280 | 2014-08-08 | 7th Arad Open 2014 | Arad ROU | 7.11 | Vladimir Lukovic | Mihnea Costachi | 1/2-1/2 | 60 | Open |
| 2281 | 2014-08-05 | 7th Arad Open 2014 | Arad ROU | 3.8 | Yury Lapshun | Mihnea Costachi | 1-0 | 30 | Open |
| 2282 | 2014-07-21 | TCh-European Youth 2014 | Iasi ROU | 7.4 | Mihnea Costachi | Mark Kvetny | 1/2-1/2 | 42 | Open |
| 2283 | 2014-07-20 | TCh-European Youth 2014 | Iasi ROU | 6.4 | Oleg Gorbanovsky | Mihnea Costachi | 1/2-1/2 | 44 | Open |
| 2284 | 2014-07-19 | TCh-European Youth 2014 | Iasi ROU | 5.4 | Mihnea Costachi | Radoslaw Gajek | 1/2-1/2 | 41 | Open |
| 2285 | 2014-07-18 | TCh-European Youth 2014 | Iasi ROU | 4.5 | Mihnea Costachi | Sham Bratkovic | 1-0 | 42 | Open |
| 2286 | 2014-07-17 | TCh-European Youth 2014 | Iasi ROU | 3.4 | Florian Mesaros | Mihnea Costachi | 0-1 | 41 | Open |
| 2287 | 2014-07-16 | TCh-European Youth 2014 | Iasi ROU | 2.4 | Mihnea Costachi | Emanuel Olinici | 1-0 | 39 | Open |
| 2288 | 2014-07-15 | TCh-European Youth 2014 | Iasi ROU | 1.5 | Mihnea Costachi | Stefan Tomici | 1-0 | 47 | Open |
| 2289 | 2013-08-09 | Arad Open 2013 | Arad ROU | 9.18 | Alberto Pulito | Mihnea Costachi | 1/2-1/2 | 15 | Open |
| 2290 | 2013-08-06 | Arad Open 2013 | Arad ROU | 5.17 | Paul-Cristian Rusan | Mihnea Costachi | 1-0 | 43 | Open |
| 2291 | 2013-08-04 | Arad Open 2013 | Arad ROU | 3.17 | Robin-Alexandru Dragomirescu | Mihnea Costachi | 1-0 | 77 | Open |
| 2292 | 2013-02-24 | ch-ROU 2013 | Baile Olanesti ROU | 11.26 | Mihnea Costachi | Stefan Baciu | 1/2-1/2 | 38 | Open |
| 2293 | 2013-02-23 | ch-ROU 2013 | Baile Olanesti ROU | 10.25 | Claudiu-Daniel Vasile | Mihnea Costachi | 1-0 | 57 | Open |
| 2294 | 2013-02-22 | ch-ROU 2013 | Baile Olanesti ROU | 9.34 | Mihnea Costachi | Stefan Covaci | 1-0 | 33 | Open |
| 2295 | 2013-02-21 | ch-ROU 2013 | Baile Olanesti ROU | 8.19 | Florin-George Vladescu | Mihnea Costachi | 1-0 | 58 | Open |
| 2296 | 2013-02-21 | ch-ROU 2013 | Baile Olanesti ROU | 7.32 | Mihnea Costachi | Cosmin Vasiliu | 1-0 | 38 | Open |
| 2297 | 2013-02-20 | ch-ROU 2013 | Baile Olanesti ROU | 6.38 | Marius Arghirescu | Mihnea Costachi | 0-1 | 46 | Open |
| 2298 | 2013-02-19 | ch-ROU 2013 | Baile Olanesti ROU | 5.37 | Mihnea Costachi | Andrei Bunta | 0-1 | 22 | Open |
| 2299 | 2013-02-18 | ch-ROU 2013 | Baile Olanesti ROU | 4.22 | Ovidiu-Jean Lupu | Mihnea Costachi | 1-0 | 28 | Open |
| 2300 | 2013-02-18 | ch-ROU 2013 | Baile Olanesti ROU | 3.39 | Mihnea Costachi | Pavel Enache | 1-0 | 49 | Open |
| 2301 | 2013-02-17 | ch-ROU 2013 | Baile Olanesti ROU | 2.4 | Alexandru-Bogdan Banzea | Mihnea Costachi | 0-1 | 35 | Open |
| 2302 | 2013-02-16 | ch-ROU 2013 | Baile Olanesti ROU | 1.4 | Mihnea Costachi | Andrei Murariu | 0-1 | 48 | Open |
| 2303 | 2012-07-31 | PAB Romania Open 2012 | Arad ROU | 6.14 | Andrei Murariu | Mihnea Costachi | 1-0 | 25 | Open |
| 2304 | 2012-07-29 | PAB Romania Open 2012 | Arad ROU | 4.21 | Ladislau-Endre Kelly | Mihnea Costachi | 1/2-1/2 | 29 | Open |
| 2305 | 2012-07-28 | PAB Romania Open 2012 | Arad ROU | 2.24 | Codrut-Constantin Florescu | Mihnea Costachi | 1-0 | 61 | Open |
| 2306 | 2012-07-27 | PAB Romania Open 2012 | Arad ROU | 8.25 | Mihail-Dacian Pribeanu | Mihnea Costachi | 1/2-1/2 | 33 | Open |
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