30 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Leppin, Mattis | Zhykh, Kiril | 1/2-1/2 | D51 | DEM U10 2026 | 2026-05-30 |
| Leppin, Mattis | Klaus, Nestor | 0-1 | D37 | DEM U10 2026 | 2026-05-27 |
| Leppin, Mattis | Wachtel, Edwin | 1/2-1/2 | A46 | DEM U10 2026 | 2026-05-26 |
| Leppin, Mattis | Mettenbrink, Tammo | 1/2-1/2 | D02 | DEM U10 2026 | 2026-05-25 |
| Leppin, Mattis | Mudrievski, Jan | 0-1 | D51 | DEM U10 2026 | 2026-05-24 |
| Leppin, Mattis | Uz, Kaan | 0-1 | D02 | Runde 7: Leppin, Mattis - Uz, Kaan | 2026-01-05 |
| Leppin, Mattis | Kracke, Eric | 1-0 | A48 | Runde 5: Leppin, Mattis - Kracke, Eric | 2026-01-04 |
| Leppin, Mattis | Timm, Felix | 1-0 | A48 | Runde 3: Leppin, Mattis - Timm, Felix | 2026-01-03 |
| Leppin, Mattis | Klages, Justus | 1-0 | D00 | Runde 1: Leppin, Mattis - Klages, Justus | 2026-01-02 |
| Mattis Leppin | Hamati, Emeli | 1/2-1/2 | D00 | Round 5: Mattis Leppin - Hamati, Emeli | 2025-01-04 |
| Mattis Leppin | Hemme, Gregory | 1-0 | A45 | Round 6: Mattis Leppin - Hemme, Gregory | 2025-01-04 |
| Mattis Leppin | Cramer, Timon | 1/2-1/2 | D00 | Round 2: Mattis Leppin - Cramer, Timon | 2025-01-02 |
| Leppin, Mattis | Roessling, Johannes | 1/2-1/2 | C55 | DVM U10 2024 | 2024-12-29 |
| Leppin, Mattis | Breaz, Albert | 0-1 | D85 | DVM U10 2024 | 2024-12-28 |
| Leppin, Mattis | Bentele, Otto | 1-0 | D43 | DVM U10 2024 | 2024-12-27 |