23 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Mierzwa, Mateusz | Szczypka, Sebastian | 1-0 | B63 | Open C | 2026-08-07 |
| Mierzwa, Mateusz | Stando, Antoni | 1-0 | B50 | Open C | 2026-08-03 |
| Mierzwa, Mateusz | Szostak, Michal | 1-0 | B00 | Open C | 2026-08-02 |
| Mierzwa, Mateusz | Swidergal, Oliwia | 1-0 | C00 | Open C | 2026-08-01 |
| Mierzwa, Mateusz | Cichocki, Aleksander | 1/2-1/2 | C47 | Open C | 2026-07-31 |
| Mierzwa, Mateusz | Diachek, Andrii | 0-1 | C55 | Blitz C14 | 2026-07-13 |
| Mierzwa, Mateusz | Reterski, Wiktor | 0-1 | B40 | Open D | 2024-08-14 |
| Mierzwa, Mateusz | Kolorz, Julia | 1/2-1/2 | C47 | Open D | 2024-08-12 |
| Mierzwa, Mateusz | Tendera, Jan | 1-0 | C54 | Open D | 2024-08-12 |
| Mierzwa, Mateusz | Vajdik, Josef | 1/2-1/2 | B23 | Open-C | |
| Mierzwa, Mateusz | Poloczek, Maja | 0-1 | C55 | Open-C |