9 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Mattmann, Peter | Koehler, Noe | 0-1 | B28 | Amateur Tournament (ATO) | 2026-07-23 |
| Mattmann, Peter | Grueter-Schmid, Helen | 1-0 | C41 | Amateur Tournament (ATO) | 2026-07-21 |
| Mattmann, Peter | Suwendo, Poedjo | 1-0 | B20 | Amateur Tournament (ATO) | 2026-07-18 |
| Mattmann, Peter | Szerszen, Krzysztof | 1/2-1/2 | B01 | Amateur Tournament (ATO) | 2026-07-16 |
| Mattmann, Peter | Reithmayer, Angela | 1-0 | C24 | Amateur Tournament (ATO) | 2026-07-15 |