12 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Tonsen, Niklas | Preusse, Anton | 1-0 | A05 | DEM U10 2026 | 2026-05-30 |
| Tonsen, Niklas | Sriram, Aumkar | 0-1 | A08 | DEM U10 2026 | 2026-05-28 |
| Tonsen, Niklas | Ivanov, Kirill | 1-0 | A07 | DEM U10 2026 | 2026-05-27 |
| Tonsen, Niklas | Rudnizki, Valentin | 0-1 | A05 | DEM U10 2026 | 2026-05-25 |
| Tonsen, Niklas | Boettger, Adrian | 1-0 | C50 | DEM U10 2026 | 2026-05-24 |
| Tonsen, Niklas | Kandora, Shirley | 1-0 | C24 | DVM U12 2025 | 2025-12-30 |
| Tonsen, Niklas | Weber, David Minh | 0-1 | C54 | DVM U12 2025 | 2025-12-28 |