10 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Mazurek, Oskar | Marcinkowski, Wojciech | 1/2-1/2 | C47 | mwj sypniewo c18 | 2026-06-03 |
| Mazurek, Oskar | Lewandowski, Mikolaj | 1/2-1/2 | B90 | MWJ | 2025-06-15 |
| Mazurek, Oskar | Buchwald, Filip | 1/2-1/2 | B37 | MWJ | 2025-06-13 |
| Mazurek, Oskar | Gustowski, Dawid | 1/2-1/2 | C47 | MWJ | 2025-06-13 |
| Mazurek, Oskar | Koza, Krzysztof | 1-0 | C46 | MWJ | 2025-06-12 |
| Mazurek, Oskar | Pieczewska, Jadwiga | 0-1 | C01 | MWJ | 2025-06-11 |