| Jul 22, 2026 | Zarriess | ½–½ | Conrad | Amateur Tournament (ATO) | French Defense: Hecht-Reefschläger Variation | |
| Jul 21, 2026 | Papageorgiou Martinella | 0–1 | Zarriess | Amateur Tournament (ATO) | Queen's Gambit Declined: Three Knights Variation | |
| Jul 21, 2026 | Zarriess | ½–½ | Wegelin | Amateur Tournament (ATO) | Pirc Defense | |
| Jul 18, 2026 | Betsche | 1–0 | Zarriess | Amateur Tournament (ATO) | Scotch Game: Schmidt Variation | |
| Jul 17, 2026 | Zarriess | ½–½ | Hofmann | Amateur Tournament (ATO) | Caro-Kann Defense: Exchange Variation | |
| Jul 16, 2026 | Kalbermatter | ½–½ | Zarriess | Amateur Tournament (ATO) | Scotch Game: Göring Gambit | |
| Jul 15, 2026 | Zarriess | ½–½ | Ernst | Amateur Tournament (ATO) | Caro-Kann Defense: Apocalypse Attack | |
| Jul 15, 2026 | Clausen | 0–1 | Zarriess | Amateur Tournament (ATO) | Rapport-Jobava System | |
| Jul 24, 2025 | Schmid | ½–½ | Zarriess | Biel Chess Festival 2025 | Nimzo-Larsen Attack: Classical Variation | |
| Jul 23, 2025 | Zarriess | 1–0 | Chalmers | Biel Chess Festival 2025 | French Defense: Knight Variation | |
| Jul 22, 2025 | Zimmermann | 0–1 | Zarriess | Biel Chess Festival 2025 | Vienna Game: Falkbeer Variation | |
| Jul 21, 2025 | Zarriess | 0–1 | Aegerter | Biel Chess Festival 2025 | Four Knights Game: Spanish Variation, Classical Variation | |
| Jul 19, 2025 | Zarriess | ½–½ | Aleksenko | Biel Chess Festival 2025 | Queen's Pawn Game: Colle System | |
| Jul 18, 2025 | Leuenberger | 1–0 | Zarriess | Biel Chess Festival 2025 | Queen's Gambit Declined: Charousek Variation | |
| Jul 17, 2025 | Huber | 0–1 | Zarriess | Biel Chess Festival 2025 | King's Indian Attack | |
| Jul 16, 2025 | Zarriess | 0–1 | Meshach | Biel Chess Festival 2025 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jul 15, 2025 | Barros | 0–1 | Zarriess | Biel Chess Festival 2025 | Queen's Gambit Declined: Queen's Knight Variation | |
| Jul 16, 2024 | Zarriess | 1–0 | Kim | Biel Chess Festival 2024 - Amateur tournament | Ruy Lopez: Steinitz Defense, Nimzowitsch Attack | |
| Jul 14, 2024 | Zarriess | 0–1 | Hauser | Biel Chess Festival RAP | Four Knights Game: Scotch Variation Accepted | |
| Jul 14, 2024 | Schlegel | 1–0 | Zarriess | Biel Chess Festival RAP | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Jul 14, 2024 | Pisan | 1–0 | Zarriess | Biel Chess Festival RAP | Catalan Opening: Closed Variation, Traditional Variation | |
| Jul 14, 2024 | Marinkovic | 1–0 | Zarriess | Biel Chess Festival RAP | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 14, 2024 | Rosenberg | 1–0 | Zarriess | Round 4: Rosenberg, Thomas - Zarriess, Benjamin | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Aug 11, 2024 | Leidig | ½–½ | Zarriess | Round 2: Leidig, Andreas - Zarriess, Benjamin | Ruy Lopez: Open, Bernstein Variation | |
| Jul 23, 2024 | Zarriess | ½–½ | Aleksenko Kirill | Biel Chess Festival 2024 | Scotch Game: Lolli Variation | |
| Jul 22, 2024 | Shin | 1–0 | Zarriess | Biel Chess Festival 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 20, 2024 | Zarriess | 1–0 | Fernandez Van Raap | Biel Chess Festival 2024 | Caro-Kann Defense: Exchange Variation | |
| Jul 17, 2024 | Szelag | 1–0 | Zarriess | Biel Chess Festival 2024 | Ruy Lopez: Morphy Defense, Wormald Attack | |
| Jul 19, 2022 | Van Bogaert | 1–0 | Zarriess | Biel Chess Festival 2024 | Catalan Opening: Closed, Botvinnik Variation | |
| Jul 18, 2022 | Zarriess | ½–½ | Ahn | Biel Chess Festival 2024 | Sicilian Defense: Nimzowitsch Variation, Exchange Variation | |