| Jul 19, 2026 | Guyer | 0–1 | Beerdsen | Round 9: Guyer, Marlon - Beerdsen, Thomas | Sicilian Defense: Najdorf Variation, English Attack, Anti-English | |
| Jul 18, 2026 | Klings | 0–1 | Guyer | Round 8: Klings, Peter - Guyer, Marlon | King's Indian Attack: Yugoslav Variation | |
| Jul 16, 2026 | Lou | 1–0 | Guyer | Round 6: Lou, Vincent - Guyer, Marlon | Queen's Gambit Declined: Tartakower Defense | |
| Jul 14, 2026 | Schmelowszky | ½–½ | Guyer | Round 4: Schmelowszky, David - Guyer, Marlon | Four Knights Game: Naroditsky Variation | |
| Jul 12, 2026 | Schellenberg | 1–0 | Guyer | Round 2: Schellenberg, Simon - Guyer, Marlon | Scotch Game: Classical Variation | |
| May 17, 2026 | Guyer | ½–½ | Gemelli | Round 7: Guyer, Marlon - Gemelli,Romain | Ruy Lopez: Morphy Defense | |
| Jul 13, 2025 | Guyer | 0–1 | Schellenberg | Round 2: Guyer, Marlon - Schellenberg, Simon | Scandinavian Defense: Main Line, Mieses Variation | |
| May 20, 2024 | Guyer | 0–1 | Mattenberger | Schweizer Jugend Einzelmeisterschaft 2024 | Sicilian Defense: Najdorf Variation, English Attack | |
| May 19, 2024 | Breyer | ½–½ | Guyer | Schweizer Jugend Einzelmeisterschaft 2024 | Ruy Lopez: Closed, Delayed Exchange | |
| May 19, 2024 | Marmy | 0–1 | Guyer | Schweizer Jugend Einzelmeisterschaft 2024 | Italian Game: Classical Variation, Greco Gambit, Moeller-Therkatz Attack | |
| May 18, 2024 | Guyer | 1–0 | Hofstetter | Schweizer Jugend Einzelmeisterschaft 2024 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| May 18, 2024 | Guyer | 0–1 | Artan | Schweizer Jugend Einzelmeisterschaft 2024 | Sicilian Defense: Najdorf Variation, English Attack | |
| May 17, 2024 | Guyer | 0–1 | Malli | Schweizer Jugend Einzelmeisterschaft 2024 | Sicilian Defense: Najdorf Variation, English Attack | |
| May 17, 2024 | Dueck | 0–1 | Guyer | Schweizer Jugend Einzelmeisterschaft 2024 | Italian Game: Evans Gambit, Tartakower Attack | |
| May 29, 2023 | Guyer | 1–0 | Tahedl | Schweizer Jugend Einzelmeisterschaft 2023 U16 | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| May 28, 2023 | Guyer | 1–0 | Gendre | Schweizer Jugend Einzelmeisterschaft 2023 U16 | Sicilian Defense: Scheveningen Variation, Modern Variation | |
| May 28, 2023 | Rappazzo | 1–0 | Guyer | Schweizer Jugend Einzelmeisterschaft 2023 U16 | Italian Game: Evans Gambit, Tartakower Attack | |
| May 27, 2023 | Guyer | 0–1 | Scherler | Schweizer Jugend Einzelmeisterschaft 2023 U16 | Caro-Kann Defense: Exchange Variation | |
| May 27, 2023 | Bruessow | 0–1 | Guyer | Schweizer Jugend Einzelmeisterschaft 2023 U16 | Scotch Game: Potter Variation | |
| May 26, 2023 | Guyer | 0–1 | Kostov | Schweizer Jugend Einzelmeisterschaft 2023 U16 | Sicilian Defense: Najdorf Variation, English Attack | |
| May 26, 2023 | Dueck | 0–1 | Guyer | Schweizer Jugend Einzelmeisterschaft 2023 U16 | Italian Game: Evans Gambit, Tartakower Attack | |