9 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Zimmermann, Stefan SUI | Schaefer, Gion | 0-1 | B20 | Biel Chess Festival 2025 | 2025-07-24 |
| Zimmermann, Stefan SUI | Zarriess, Benjamin | 0-1 | C26 | Biel Chess Festival 2025 | 2025-07-22 |
| Zimmermann, Stefan SUI | Gireada, Lucas | 1-0 | B12 | Biel Chess Festival 2025 | 2025-07-19 |
| Zimmermann, Stefan SUI | Ding, Shirui | 0-1 | B01 | Biel Chess Festival 2025 | 2025-07-17 |
| Zimmermann, Stefan SUI | Kulikov, Mikhail L | 0-1 | C26 | Biel Chess Festival 2025 | 2025-07-15 |