| Jul 24, 2026 | Habibi | ½–½ | Zumbrunn | Round 9: Habibi, Ali - Zumbrunn, Simon | Zukertort Opening: Sicilian Invitation | |
| Jul 23, 2026 | Zumbrunn | 0–1 | Manukonda | Biel Chess Festival 2026 - Fast Standard 1700+ (WT1) | ? | |
| Jul 22, 2026 | Zumbrunn | 1–0 | Bulva | Round 5: Zumbrunn, Simon - Bulva, Maksim | Sicilian Defense: Hyperaccelerated Dragon | |
| Jul 21, 2026 | Mohammad Nubairshah Shaikh | 1–0 | Zumbrunn | Round 4: Mohammad Nubairshah Shaikh - Zumbrunn, Simon | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Jul 21, 2026 | Zumbrunn | 1–0 | Amado-Blanco | Round 3: Zumbrunn, Simon - Amado-Blanco, Carlos | Caro-Kann Defense: Maróczy Variation | |
| Jul 20, 2026 | Zumbrunn | 1–0 | Albicker | Round 1: Zumbrunn, Simon - Albicker, Laurenz | Alekhine Defense | |
| Jul 19, 2026 | Gireada | 0–1 | Zumbrunn | Round 13: Gireada, Lucas - Zumbrunn, Simon | Benoni Defense | |
| Jul 19, 2026 | Koehler | 1–0 | Zumbrunn | Round 11: Koehler, Noe - Zumbrunn, Simon | Italian Game: Scotch Gambit, Max Lange Attack | |
| Jul 19, 2026 | Zumbrunn | 0–1 | Osmani | Round 10: Zumbrunn, Simon - Osmani, Xhevdet | Caro-Kann Defense: Maróczy Variation | |
| Jul 19, 2026 | Aryan Mehta | 0–1 | Zumbrunn | Round 9: Aryan Mehta - Zumbrunn, Simon | King's Indian Defense: Four Pawns Attack, Dynamic Attack | |
| Jul 19, 2026 | Marinkovic | 1–0 | Zumbrunn | Round 7: Marinkovic, Zoran - Zumbrunn, Simon | Scotch Game: Mieses Variation | |
| Jul 19, 2026 | Zumbrunn | 0–1 | Hirzel | Round 6: Zumbrunn, Simon - Hirzel, Robin | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jul 19, 2026 | Popescu | ½–½ | Zumbrunn | Round 5: Popescu, Vlad - Zumbrunn, Simon | English Opening: Anglo-Indian Defense | |
| Jul 19, 2026 | El-Mais | 1–0 | Zumbrunn | Round 3: El-Mais, Ibaa - Zumbrunn, Simon | Indian Defense: Spielmann-Indian | |
| Jul 19, 2026 | Cao | 1–0 | Zumbrunn | Round 1: Cao, Qingfeng - Zumbrunn, Simon | Benoni Defense | |
| Jul 12, 2026 | Zumbrunn | 0–1 | Lang | Round 9: Zumbrunn, Simon - Lang, Fabian | Caro-Kann Defense: Maróczy Variation | |
| Jul 12, 2026 | Rohde | 0–1 | Zumbrunn | Round 8: Rohde, Bernhard - Zumbrunn, Simon | Italian Game: Two Knights Defense, Ulvestad Variation | |
| Jul 12, 2026 | Trubini | 1–0 | Zumbrunn | Round 6: Trubini, Timon - Zumbrunn, Simon | Italian Game: Two Knights Defense, Ulvestad Variation | |
| Jul 12, 2026 | Hashem | 1–0 | Zumbrunn | Round 4: Hashem, Khaled - Zumbrunn, Simon | English Opening: Anglo-Indian Defense | |
| Jul 12, 2026 | Zumbrunn | 0–1 | Kukushkin | Round 1: Zumbrunn, Simon - Kukushkin, Ivan | Sicilian Defense: Smith-Morra Gambit Accepted, Sozin Formation | |
| Jul 23, 2025 | Zumbrunn | 1–0 | Delaquis | Biel Chess Festival 2025 WT 1 | Caro-Kann Defense: Maróczy Variation | |
| Jul 22, 2025 | Vassiliev | 0–1 | Zumbrunn | Biel Chess Festival 2025 WT 1 | Italian Game: Two Knights Defense, Ulvestad Variation | |
| Jul 21, 2025 | Zumbrunn | 1–0 | Shahmammadli | Biel Chess Festival 2025 WT 1 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jul 20, 2025 | Wilhelm | ½–½ | Zumbrunn | Biel Chess Festival 2025 Blitz | Trompowsky Attack | |
| Jul 20, 2025 | Piacquadio | 1–0 | Zumbrunn | Biel Chess Festival 2025 Blitz | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Jul 20, 2025 | Zumbrunn | 0–1 | Ballmer | Biel Chess Festival 2025 Blitz | Scandinavian Defense: Mieses-Kotroc Variation | |
| Jul 20, 2025 | Doxarve | 1–0 | Zumbrunn | Biel Chess Festival 2025 Blitz | Ruy Lopez: Berlin Defense | |
| Jul 20, 2025 | Zumbrunn | 1–0 | Lappalainen | Biel Chess Festival 2025 Blitz | Four Knights Game: Spanish Variation, Double Spanish | |
| Jul 20, 2025 | Vemparala | 1–0 | Zumbrunn | Biel Chess Festival 2025 Blitz | Italian Game: Classical Variation, Giuoco Pianissimo, Albin Variation | |
| Jul 20, 2025 | Zumbrunn | 1–0 | Clausen | Biel Chess Festival 2025 Blitz | Scandinavian Defense: Blackburne Gambit | |
| Jul 20, 2025 | Zumbrunn | 0–1 | Masserey | Biel Chess Festival 2025 Blitz | Petrov's Defense: Classical Attack, Marshall Variation | |
| May 18, 2025 | Zumbrunn | 0–1 | Filimonov | Biel Chess Festival 2025 WT 1 | Sicilian Defense: Kan Variation, Knight Variation | |
| May 18, 2025 | Bachmann | 0–1 | Zumbrunn | Biel Chess Festival 2025 WT 1 | Bishop's Opening: Vienna Hybrid | |
| Jul 23, 2024 | Zumbrunn | 0–1 | Sushrutha | Biel Chess Festival WT1 | Sicilian Defense: Dragon Variation | |
| Jul 22, 2024 | Ademi | 0–1 | Zumbrunn | Biel Chess Festival WT1 | Hungarian Opening | |
| Jul 21, 2024 | Zumbrunn | 0–1 | Toktomushev | Biel Chess Festival BTZ | Sicilian Defense: Kan Variation, Wing Attack | |
| Jul 21, 2024 | Zumbrunn | 0–1 | Wilhelm | Biel Chess Festival BTZ | Caro-Kann Defense: Exchange Variation | |
| Jul 21, 2024 | Zumbrunn | 0–1 | Arulanantham | Biel Chess Festival BTZ | Caro-Kann Defense: Exchange Variation | |
| Jul 21, 2024 | Zumbrunn | 0–1 | Hirt | Biel Chess Festival BTZ | Alekhine Defense: Two Pawns Attack | |