14 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Kowalec, Maciej | Chmielarz, Maciej | 1/2-1/2 | B15 | II Liga 2026 | 2026-09-06 |
| Kowalec, Maciej | Krasniewski, Szymon | 0-1 | A16 | II Liga 2026 | 2026-09-02 |
| Kowalec, Maciej | Luch, Michal | 1/2-1/2 | D02 | Roquetas 25 | 2025-01-03 |
| Kowalec, Maciej | Skomial, Mateusz | 1/2-1/2 | D35 | 2liga-3 | 2024-09-07 |
| Kowalec, Maciej | Slampa, Jan | 0-1 | D10 | Letni Praha 2022 | 2022-08-10 |
| Kowalec, Maciej | Lutsko, Artem | 0-1 | D02 | Letni Praha 2022 | 2022-08-06 |