82 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Fels, Mattis | Lau, Udo | 1-0 | A40 | Round 3: Fels, Mattis - Lau, Udo | 2026-08-22 |
| Fels, Mattis | Kausche, Peter W. | 1-0 | B07 | Round 1: Fels, Mattis - Kausche, Peter W. | 2026-08-21 |
| Fels, Mattis | Buchcar, Tomas | 0-1 | A45 | CZECH OPEN 2026 - G1 - PARDUBICKY KRAJ OPEN | 2026-07-23 |
| Fels, Mattis | Maraun, Lias | 1/2-1/2 | D01 | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | 2026-04-02 |
| Fels, Mattis | Wozniak, Thomas | 1-0 | D01 | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | 2026-04-01 |
| Fels, Mattis | Baklan, Kira | 1-0 | D01 | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | 2026-03-30 |
| Fels, Mattis | Kowalczik, Lars | 1-0 | D01 | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | 2026-03-29 |
| Fels, Mattis | Friedrich, Timofej | 0-1 | D01 | DVM U16 2025 | 2025-12-28 |
| Fels, Mattis | Pazar, Ubeyd | 0-1 | D00 | DVM U16 2025 | 2025-12-27 |
| Fels, Mattis | Röhrig, Jarin | 1-0 | A80 | DVM U16 2025 | 2025-12-27 |
| Fels, Mattis | Karich, Oliver | 1-0 | D01 | Runde 2: Fels, Mattis - Karich, Oliver | 2025-10-30 |
| Fels, Mattis | Klages, Jonas | 1-0 | D01 | Runde 4: Fels, Mattis - Klages, Jonas | 2025-10-14 |
| Fels, Mattis | Voigt, Dominik | 1-0 | D01 | Runde 6: Fels, Mattis - Voigt, Dominik | 2025-10-14 |
| Fels, Mattis | Prashanthakumar, Arnesh | 0-1 | D01 | DEM U12 2025 | 2025-06-14 |
| Fels, Mattis | Spielmann, Jan | 1/2-1/2 | B06 | DEM U12 2025 | 2025-06-12 |
| Fels, Mattis | Moskalenko, Michael | 0-1 | D01 | DEM U12 2025 | 2025-06-11 |
| Fels, Mattis | Hamann, Friedrich | 0-1 | D00 | DEM U12 2025 | 2025-06-09 |
| Fels, Mattis | Gersemann, Karl | 0-1 | A45 | DEM U12 2025 | 2025-06-08 |
| Fels, Mattis | Rohde, Bjoern | 0-1 | D01 | Round 7: Fels, Mattis - Rohde, Bjoern | 2025-01-05 |
| Fels, Mattis | Stelter, Finja | 1-0 | D01 | Round 5: Fels, Mattis - Stelter, Finja | 2025-01-04 |
| Fels, Mattis | Musev, Sibin | 1-0 | B07 | Round 3: Fels, Mattis - Musev, Sibin | 2025-01-03 |
| Fels, Mattis | Pollerberg, Amelie | 1-0 | D01 | Round 7: Fels, Mattis - Pollerberg, Amelie | 2024-11-03 |
| Fels, Mattis | Kopylov, Diana | 0-1 | D01 | Round 5: Fels, Mattis - Kopylov, Diana | 2024-11-02 |
| Fels, Mattis | Marzik, Arne | 0-1 | D01 | Round 3: Fels, Mattis - Marzik, Arne | 2024-11-01 |
| Fels, Mattis | Wessels, Keke | 1-0 | A45 | Round 1: Fels, Mattis - Wessels, Keke | 2024-10-31 |
| Fels, Mattis | Shevchenko, Igor | 0-1 | D01 | DEM U12 2024 | 2024-05-24 |
| Fels, Mattis | Rodriguez Klasen, Ennio | 0-1 | D01 | DEM U12 2024 | 2024-05-22 |
| Fels, Mattis | Rau, Eduard | 1-0 | D01 | DEM U12 2024 | 2024-05-21 |
| Fels, Mattis | Draude, Theo | 1-0 | D01 | DEM U12 2024 | 2024-05-19 |
| Mattis Fels | Hans-Juergen Leppert | 0-1 | D01 | Round 6: Mattis Fels - Hans-Juergen Leppert | 2024-01-06 |
| Mattis Fels | Jonas Walther | 0-1 | D01 | Round 3: Mattis Fels - Jonas Walther | 2024-01-05 |
| Mattis Fels | Lars-Florian Gärtner | 1-0 | D01 | Round 1: Mattis Fels - Lars-Florian Gärtner | 2024-01-04 |
| Mattis Fels | Maximilian Juergenpott | 1-0 | D01 | Round 7 | B: Mattis Fels - Maximilian Juergenpott | 2023-01-08 |
| Fels, Mattis | Rudi, Jonathan | 1/2-1/2 | D01 | Lower Saxony Championship | B | 2023-01-07 |
| Mattis Fels | Lara Kiesel | 0-1 | D01 | Round 4 | B: Mattis Fels - Lara Kiesel | 2023-01-06 |
| Fels, Mattis | Pfeifer, Frank | 1-0 | A45 | Lower Saxony Championship | B | 2023-01-05 |
| Fels, Mattis | Wetzig, Karl Anton | 1-0 | D01 | DEM U10 2022 | 2022-06-07 |
| Fels, Mattis | Heitmann, Erik | 0-1 | D01 | DEM U10 2022 | 2022-06-06 |
| Fels, Mattis | Mulgunov, Jefim Nikolaj | * | A40 | DEM U10 2022 | 2022-06-05 |