9 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Mastop, Guido | Van Batenburg, Mees | 0-1 | A02 | Round 1: Mastop, Guido - Van Batenburg, Mees | 2024-06-15 |
| Mastop, Guido | Markuszewski, Maksymilian | 0-1 | A03 | Round 3: Mastop, Guido - Markuszewski, Maksymilian | 2024-06-15 |
| Mastop, Guido | Wolters, Rens | 1-0 | A03 | Round 1: Mastop, Guido - Wolters, Rens | 2024-05-12 |
| Mastop, Guido | Jitze Orij | 1-0 | A02 | Round 3: Mastop, Guido - Jitze Orij | 2024-05-12 |
| Mastop, Guido | Zuidberg, Koen | 1/2-1/2 | A02 | Round 5: Mastop, Guido - Zuidberg, Koen | 2024-05-12 |