20 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Doniec, Mateusz | Zareba, Maciej | 0-1 | A46 | Polanica2026-openB | 2026-08-18 |
| Doniec, Mateusz | Bos, Nina | 1/2-1/2 | B22 | Open A | 2026-08-07 |
| Doniec, Mateusz | Kozera, Patryk | 0-1 | B15 | Open A | 2026-08-05 |
| Doniec, Mateusz | Szuszkiewicz, Stanislaw | 1-0 | D35 | Open A | 2026-08-03 |
| Doniec, Mateusz | Kozlowski, Bogdan | 0-1 | C22 | Open A | 2026-08-01 |
| Mateusz Doniec | Vojtech Jurok | 1/2-1/2 | A08 | Round 8: Mateusz Doniec - Vojtech Jurok | 2023-07-08 |
| Mateusz Doniec | Adam Kovalcik | * | B24 | Round 6: Mateusz Doniec - Adam Kovalcik | 2023-07-06 |
| Mateusz Doniec | Milan Szmek | 1-0 | C44 | Round 4: Mateusz Doniec - Milan Szmek | 2023-07-04 |
| Mateusz Doniec | Anna Slusarczyk | 1/2-1/2 | B22 | Round 2: Mateusz Doniec - Anna Slusarczyk | 2023-07-02 |
| Doniec, Mateusz | Mataczyna, Aleksandra | 1-0 | C22 | A |