61 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Kolosowski, Mateusz | Sanal, Vahap | 1/2-1/2 | B23 | EICC 2026 | 2026-04-19 |
| Kolosowski, Mateusz | Kucza, Karol | 1/2-1/2 | D45 | EICC 2026 | 2026-04-16 |
| Kolosowski, Mateusz | Warmerdam, Max | 0-1 | B12 | EICC 2026 | 2026-04-14 |
| Kolosowski, Mateusz | Brzezina, Pawel | 1-0 | B12 | EICC 2026 | 2026-04-12 |
| Kolosowski, Mateusz | Topencik, Bruno | 1/2-1/2 | A06 | EICC 2026 | 2026-04-10 |
| Kolosowski, Mateusz | Bochniak, Franciszek | 1-0 | A50 | EIIC 2026 | 2026-04-08 |
| Kolosowski, Mateusz | Onyshchuk, Volodymyr | 0-1 | B06 | Semifinals Game 2: Kolosowski, Mateusz - Onyshchuk, Volodymyr | 2025-11-16 |
| Kolosowski, Mateusz | Reimanis, Ritvars | 1-0 | C46 | Finals Game 1: Kolosowski, Mateusz - Reimanis, Ritvars | 2025-11-16 |
| Kolosowski, Mateusz | Terekhov, Andrey | 1-0 | B23 | Round 2: Kolosowski, Mateusz - Terekhov, Andrey | 2025-11-14 |
| Kolosowski, Mateusz | Nerkar Anand | 1-0 | C07 | Round 4: Kolosowski, Mateusz - Nerkar Anand | 2025-11-13 |
| Kolosowski, Mateusz | Ovita Brian | 1-0 | B06 | Round 6: Kolosowski, Mateusz - Ovita Brian | 2025-11-13 |
| Kolosowski, Mateusz | Acs, Peter | 1/2-1/2 | B23 | Round 8: Kolosowski, Mateusz - Acs, Peter | 2025-11-13 |
| Kolosowski, Mateusz | Edelman, Daniel | 1-0 | C06 | Round 10: Kolosowski, Mateusz - Edelman, Daniel | 2025-11-13 |
| Kolosowski, Mateusz | Christiansen, Johan-Sebastian | 0-1 | C63 | Open | 2021-12-30 |
| Kolosowski, Mateusz | Szpar, Milosz | 1-0 | C07 | Open | 2021-12-30 |
| Kolosowski, Mateusz | Jakubowski, Krzysztof | 1/2-1/2 | B12 | Open | 2021-12-30 |
| Kolosowski, Mateusz | Sankalp, Gupta | 1/2-1/2 | C03 | Open | 2021-12-30 |
| Kolosowski, Mateusz | Krasenkow, Michal | 1-0 | C41 | FIDE World Blitz Championship | 2021-12-30 |
| Kolosowski, Mateusz | Maghsoodloo, Parham | 1/2-1/2 | C07 | Open | 2021-12-29 |
| Kolosowski, Mateusz | Michalik, Peter | 0-1 | D05 | Open | 2021-12-29 |
| Kolosowski, Mateusz | Mikhalevski, Victor | 0-1 | A48 | Open | 2021-12-29 |
| Kolosowski, Mateusz | Heberla, Bartlomiej | 1/2-1/2 | C45 | Open | 2021-12-29 |
| Kolosowski, Mateusz | Ghaem Maghami, Ehsan | 0-1 | B12 | FIDE World Blitz Championship | 2021-12-29 |
| Kolosowski, Mateusz | Lima, Darcy | 0-1 | B05 | Open | 2021-12-28 |
| Kolosowski, Mateusz | Baum, Jonasz | 1/2-1/2 | B23 | Open | 2021-12-28 |
| Kolosowski, Mateusz | Kantor, Gergely | 0-1 | B00 | Open | 2021-12-28 |
| Kolosowski, Mateusz | Lubczynski, Rafal | 1-0 | B00 | Open | 2021-12-27 |
| Kolosowski, Mateusz | Luch, Michal | 1/2-1/2 | B23 | Polish League Division 1 | 2021-09-12 |
| Kolosowski, Mateusz | Protaziuk, Grzegorz | 1-0 | B23 | Polish League Division 1 | 2021-09-10 |
| Kolosowski, Mateusz | Warakomski, Tomasz | 0-1 | B40 | Polish League Division 1 | 2021-09-08 |
| Kolosowski, Mateusz | Barski, Radoslaw | 0-1 | D02 | Polish League Division 1 | 2021-09-06 |
| Kolosowski, Mateusz | Brozyna, Mateusz | 1-0 | C45 | Polish League Division 1 | 2021-09-04 |