| Jan 4, 2026 | Middelberg | ½–½ | Stammschroer | Runde 6: Middelberg, Simon - Stammschroer, Manfred | Scandinavian Defense: Classical Variation | |
| Jan 4, 2026 | Neumann | 0–1 | Middelberg | Runde 5: Neumann, Jacob - Middelberg, Simon | Queen's Pawn Game: Accelerated London System | |
| Jan 3, 2026 | Kobs | ½–½ | Middelberg | Runde 4: Kobs, Stephan - Middelberg, Simon | Caro-Kann Defense: Panov Attack, Modern Defense, Carlsbad Line | |
| Jan 3, 2026 | Middelberg | 0–1 | Grabowski | Runde 3: Middelberg, Simon - Grabowski, Petra | Sicilian Defense: Taimanov Variation | |
| Jan 2, 2026 | Vieito Ribelles | * | Middelberg | Runde 2: Vieito Ribelles, Ariadna - Middelberg, Simon | ? | |
| Jan 2, 2026 | Middelberg | 1–0 | Jaekel | Runde 1: Middelberg, Simon - Jaekel, Michael | Scandinavian Defense: Lasker Variation | |
| Apr 18, 2025 | Stelter | 0–1 | Middelberg | Runde 9: Stelter, Finja - Middelberg, Simon | ? | |
| Apr 17, 2025 | Goda | ½–½ | Middelberg | Runde 8: Goda, Maurice - Middelberg, Simon | Rapport-Jobava System | |
| Apr 16, 2025 | Middelberg | 0–1 | Reimers | Runde 7: Middelberg, Simon - Reimers, Malte | French Defense: Wing Gambit | |
| Apr 15, 2025 | Ivan Jovic | 1–0 | Middelberg | Runde 5: Ivan Jovic - Middelberg, Simon | English Defense | |
| Apr 14, 2025 | Middelberg | 0–1 | Freise | Runde 4: Middelberg, Simon - Freise, Linus | Sicilian Defense: Taimanov Variation | |
| Apr 13, 2025 | Burnus | ½–½ | Middelberg | Runde 3: Burnus, Finn Crispin - Middelberg, Simon | Semi-Slav Defense: Normal Variation | |
| Apr 13, 2025 | Middelberg | 1–0 | Carstens | Runde 2: Middelberg, Simon - Carstens, Finja | Scandinavian Defense: Main Line | |
| Apr 12, 2025 | Zweigait | 1–0 | Middelberg | Runde 1: Zweigait, Leon - Middelberg, Simon | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Jan 7, 2023 | Schulze | 1–0 | Middelberg | Lower Saxony Championship | C | Queen's Indian Defense: Kasparov Variation | |
| Jan 7, 2023 | Fahlbusch | ½–½ | Middelberg | Lower Saxony Championship | C | Indian Defense: London System | |
| Jan 5, 2023 | Eitel | 1–0 | Middelberg | Lower Saxony Championship | C | Italian Game: Classical Variation, Giuoco Pianissimo | |
