| Apr 3, 2026 | Polikarpov | 0–1 | Fels | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | Semi-Slav Defense: Noteboom Variation | |
| Apr 2, 2026 | Fels | ½–½ | Maraun | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | Rapport-Jobava System | |
| Apr 1, 2026 | Fels | 1–0 | Wozniak | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | Rapport-Jobava System | |
| Apr 1, 2026 | Tarasenko | 1–0 | Fels | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | Scandinavian Defense: Main Line, Mieses Variation | |
| Mar 30, 2026 | Fels | 1–0 | Baklan | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | Rapport-Jobava System, with e6 | |
| Mar 30, 2026 | Rinke | 0–1 | Fels | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Mar 29, 2026 | Fels | 1–0 | Kowalczik | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | Rapport-Jobava System | |
| Mar 28, 2026 | Debus | ½–½ | Fels | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | English Opening: King's English Variation | |
| Mar 27, 2026 | Bundan | 1–0 | Fels | Landesjugendeinzelmeisterschaft in Niedersachsen U14 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Dec 29, 2025 | Steinberger | 0–1 | Fels | DVM U16 2025 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Dec 28, 2025 | Fels | 0–1 | Friedrich | DVM U16 2025 | Rapport-Jobava System | |
| Dec 28, 2025 | Zhong | 0–1 | Fels | DVM U16 2025 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Dec 27, 2025 | Fels | 1–0 | Röhrig | DVM U16 2025 | Dutch Defense: Raphael Variation | |
| Dec 27, 2025 | Fels | 0–1 | Pazar | DVM U16 2025 | Queen's Pawn Game: Chigorin Variation, Alburt Defense | |
| Oct 31, 2025 | Wallet | 0–1 | Fels | Runde 3: Wallet, Norbert - Fels, Mattis | Queen's Pawn Game: Zukertort Variation | |
| Oct 30, 2025 | Fels | 1–0 | Karich | Runde 2: Fels, Mattis - Karich, Oliver | Rapport-Jobava System | |
| Oct 30, 2025 | Wessels | 0–1 | Fels | Runde 1: Wessels, Keke - Fels, Mattis | Queen's Pawn Game: Chigorin Variation, Alburt Defense | |
| Oct 14, 2025 | Gulamov | 1–0 | Fels | Runde 7: Gulamov, Elmir - Fels, Mattis | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Oct 14, 2025 | Fels | 1–0 | Voigt | Runde 6: Fels, Mattis - Voigt, Dominik | Rapport-Jobava System | |
| Oct 14, 2025 | Schweer | ½–½ | Fels | Runde 5: Schweer, Paul - Fels, Mattis | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6, a6 | |
| Oct 14, 2025 | Fels | 1–0 | Klages | Runde 4: Fels, Mattis - Klages, Jonas | Rapport-Jobava System | |
| Jun 14, 2025 | Fels | 0–1 | Prashanthakumar | DEM U12 2025 | Rapport-Jobava System | |
| Jun 13, 2025 | Wettstein | 1–0 | Fels | DEM U12 2025 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 12, 2025 | Fels | ½–½ | Spielmann | DEM U12 2025 | Pterodactyl Defense: Eastern, Benoni | |
| Jun 11, 2025 | Gao | ½–½ | Fels | DEM U12 2025 | Queen's Pawn Game: London System, with e6 | |
| Jun 11, 2025 | Fels | 0–1 | Moskalenko | DEM U12 2025 | Rapport-Jobava System | |
| Jun 10, 2025 | Poladli | 0–1 | Fels | DEM U12 2025 | Sicilian Defense: Closed | |
| Jun 9, 2025 | Fels | 0–1 | Hamann | DEM U12 2025 | Blackmar-Diemer Gambit: Reversed Albin Countergambit | |
| Jun 8, 2025 | Huebner | 0–1 | Fels | DEM U12 2025 | Queen's Pawn Game: Zukertort Variation | |
| Jun 8, 2025 | Fels | 0–1 | Gersemann | DEM U12 2025 | Indian Defense: Reversed Chigorin Defense | |
| Jan 5, 2025 | Fels | 0–1 | Rohde | Round 7: Fels, Mattis - Rohde, Bjoern | Rapport-Jobava System, with e6 | |
| Jan 4, 2025 | Fels | 1–0 | Stelter | Round 5: Fels, Mattis - Stelter, Finja | Rapport-Jobava System | |
| Jan 4, 2025 | Axt | ½–½ | Fels | Round 6: Axt, Christian - Fels, Mattis | Sicilian Defense: Closed | |
| Jan 3, 2025 | Fels | 1–0 | Musev | Round 3: Fels, Mattis - Musev, Sibin | Pirc Defense | |
| Jan 3, 2025 | Weitekamp | 1–0 | Fels | Round 4: Weitekamp, Ole - Fels, Mattis | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jan 2, 2025 | Nolte | 1–0 | Fels | Round 2: Nolte, Alexander Nicolai - Fels, Mattis | Semi-Slav Defense: Accelerated Move Order | |
| May 25, 2024 | Noll | 0–1 | Fels | DEM U12 2024 | Sicilian Defense: Delayed Alapin Variation | |
| May 24, 2024 | Fels | 0–1 | Shevchenko | DEM U12 2024 | Rapport-Jobava System | |
| May 23, 2024 | Wagener | 0–1 | Fels | DEM U12 2024 | Sicilian Defense: Closed | |
| May 22, 2024 | Fels | 0–1 | Rodriguez Klasen | DEM U12 2024 | Rapport-Jobava System, with e6 | |
| May 22, 2024 | Sheng | 1–0 | Fels | DEM U12 2024 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| May 21, 2024 | Fels | 1–0 | Rau | DEM U12 2024 | Rapport-Jobava System | |
| May 20, 2024 | Heitmann | 0–1 | Fels | DEM U12 2024 | Semi-Slav Defense: Accelerated Move Order | |
| May 19, 2024 | Fels | 1–0 | Draude | DEM U12 2024 | Rapport-Jobava System | |
| May 19, 2024 | Gao | 1–0 | Fels | DEM U12 2024 | Queen's Pawn Game: Zukertort Variation | |
| Nov 3, 2024 | Fels | 1–0 | Pollerberg | Round 7: Fels, Mattis - Pollerberg, Amelie | Rapport-Jobava System | |
| Nov 2, 2024 | Fels | 0–1 | Kopylov | Round 5: Fels, Mattis - Kopylov, Diana | Rapport-Jobava System | |
| Nov 2, 2024 | Gaertner | 0–1 | Fels | Round 6: Gaertner, Lars-Florian - Fels, Mattis | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Nov 1, 2024 | Fels | 0–1 | Marzik | Round 3: Fels, Mattis - Marzik, Arne | Rapport-Jobava System | |
| Nov 1, 2024 | Demiroers | 0–1 | Fels | Round 4: Demiroers, Emre - Fels, Mattis | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Oct 31, 2024 | Fels | 1–0 | Wessels | Round 1: Fels, Mattis - Wessels, Keke | Indian Defense | |
| Oct 31, 2024 | Janssen | 0–1 | Fels | Round 2: Janssen, Soeren - Fels, Mattis | Sicilian Defense: Closed | |
| Jan 7, 2023 | Fels | ½–½ | Rudi | Lower Saxony Championship | B | Rapport-Jobava System | |
| Jan 7, 2023 | Stein | ½–½ | Fels | Lower Saxony Championship | B | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jan 5, 2023 | Fels | 1–0 | Pfeifer | Lower Saxony Championship | B | Indian Defense | |
| Jun 11, 2022 | Yao | 1–0 | Fels | DEM U10 2022 | Sicilian Defense: Closed, Korchnoi Defense | |
| Jun 10, 2022 | Fels | 0–1 | Lanert | DEM U10 2022 | Indian Defense: Reversed Chigorin Defense | |
| Jun 10, 2022 | Menke | ½–½ | Fels | DEM U10 2022 | Sicilian Defense: Grand Prix Attack | |
| Jun 9, 2022 | Thoms | 1–0 | Fels | DEM U10 2022 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jun 8, 2022 | Fels | 1–0 | Andersen | DEM U10 2022 | Rapport-Jobava System | |
| Jun 8, 2022 | Rinke | ½–½ | Fels | DEM U10 2022 | Scandinavian Defense: Main Line | |
| Jun 7, 2022 | Fels | 1–0 | Wetzig | DEM U10 2022 | Rapport-Jobava System | |
| Jun 6, 2022 | Fels | 0–1 | Heitmann | DEM U10 2022 | Rapport-Jobava System | |
| Jun 6, 2022 | Zhao | 1–0 | Fels | DEM U10 2022 | Sicilian Defense: Taimanov Variation | |
| Jun 5, 2022 | Fels | * | Mulgunov | DEM U10 2022 | Queen's Pawn Game: Modern Defense | |
| Jun 5, 2022 | Kateryniuk | 1–0 | Fels | DEM U10 2022 | Scandinavian Defense: Main Line | |