5 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Lach, Mateusz | Sliwicki, Damian | 0-1 | A50 | ME rapid 2021 | 2021-12-19 |
| Lach, Mateusz | Ortega Ruiz, Jose Miguel | 0-1 | B13 | ME rapid 2021 | 2021-12-18 |
| Lach, Mateusz | Gumularz, Szymon | 0-1 | A50 | European Blitz Championship | 2021-12-17 |