8 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Firsov, Stepan | Szydelko, Kazimierz | 1/2-1/2 | A45 | II liga 2026 | 2026-09-06 |
| Firsov, Stepan | Gutkowski, Konrad | 1/2-1/2 | A67 | II liga 2026 | 2026-09-04 |
| Firsov, Stepan | Skrzypczak, Michal | 1-0 | B45 | II liga 2026 | 2026-09-03 |
| Firsov, Stepan | Bugajski, Robert | 1-0 | E67 | II liga 2026 | 2026-08-31 |
| Firsov, Stepan | Rosicki, Marcin | 0-1 | C24 | DRU?YNOWE MISTRZOSTWA POLSKI II LIGA 2026 - Mecze 12-23 | 2026-08-29 |