| Oct 12, 2025 | Wirz | 1–0 | Prosperi | Round 9: Wirz, Heinz - Prosperi, Agostino | Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense | |
| Oct 11, 2025 | Kullmann | 0–1 | Wirz | Round 8: Kullmann, Theo - Wirz, Heinz | French Defense: Tarrasch Variation, Pawn Center Variation | |
| Oct 10, 2025 | Wirz | 0–1 | Mordiglia | Round 7: Wirz, Heinz - Mordiglia, Riccardo | Horwitz Defense | |
| Oct 9, 2025 | Giannone | 0–1 | Wirz | Round 6: Giannone, Edoardo - Wirz, Heinz | French Defense: Tarrasch Variation, Morozevich Variation | |
| Oct 9, 2025 | Wirz | 0–1 | Buratti | Round 5: Wirz, Heinz - Buratti, Marco | Old Indian Defense: Normal Variation | |
| Oct 7, 2025 | Ochedzan | 1–0 | Wirz | Round 4: Ochedzan, Filip - Wirz, Heinz | French Defense: Rubinstein Variation, Blackburne Defense | |
| Oct 6, 2025 | Wirz | ½–½ | Schellenberg | Round 3: Wirz, Heinz - Schellenberg, Simon | Queen's Gambit Declined | |
| Oct 5, 2025 | Blasco | 0–1 | Wirz | Round 2: Blasco, Domenico - Wirz, Heinz | Indian Defense: Przepiorka Variation | |
| Oct 5, 2025 | Wirz | 1–0 | Ratti | Round 1: Wirz, Heinz - Ratti, Ermanno | Torre Attack: Classical Defense, Nimzowitsch Variation | |
| Jul 20, 2025 | Wirz | 0–1 | Zuelle | Round 9: Wirz, Heinz - Zuelle, Bruno | Queen's Indian Defense: Classical Variation, Traditional Variation, Main Line | |
| Jul 19, 2025 | Borner | 1–0 | Wirz | Round 8: Borner, Daniel - Wirz, Heinz | French Defense: King's Indian Attack | |
| Jul 18, 2025 | Wirz | 1–0 | Hohler | Round 7: Wirz, Heinz - Hohler, Peter | Queen's Gambit Declined | |
| Jul 17, 2025 | Bellmann | 0–1 | Wirz | Round 6: Bellmann, Rambert - Wirz, Heinz | Old Indian Defense | |
| Jul 16, 2025 | Wirz | ½–½ | Adzic | Round 5: Wirz, Heinz - Adzic, Slobodan | Modern Defense: Averbakh System | |
| Jul 15, 2025 | Hugentobler | 1–0 | Wirz | Round 4: Hugentobler, Patrick - Wirz, Heinz | French Defense: Winawer Variation | |
| Jul 14, 2025 | Wirz | ½–½ | Rueetschi | Round 3: Wirz, Heinz - Rueetschi, Urs | Bogo-Indian Defense: Nimzowitsch Variation | |
| Jul 12, 2025 | Bagri | 1–0 | Wirz | Round 1: Bagri, Jaspaul - Wirz, Heinz | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line | |
| May 28, 2025 | Remensberger | 1–0 | Wirz | Round 2: Remensberger, Hansuli - Wirz, Heinz | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Jul 20, 2024 | Adzic | 0–1 | Wirz | Round 8: Adzic, Slobodan - Wirz, Heinz | Indian Defense: Tartakower Attack | |
| Jul 19, 2024 | Wirz | 0–1 | Marentini | Round 7: Wirz, Heinz - Marentini, Marcel | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Jul 18, 2024 | Hugentobler | ½–½ | Wirz | Round 6: Hugentobler, Patrick - Wirz, Heinz | French Defense: Winawer Variation, Poisoned Pawn Variation | |
| Jul 17, 2024 | Wirz | 0–1 | Staechelin | Round 5: Wirz, Heinz - Staechelin, Ruedi | Queen's Pawn Game: Accelerated London System | |
| Jul 16, 2024 | Bagri | ½–½ | Wirz | Round 4: Bagri, Jaspaul - Wirz, Heinz | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line | |
| Jul 15, 2024 | Wirz | 0–1 | Huss | Round 3: Wirz, Heinz - Huss, Andreas | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Jul 14, 2024 | Zuelle | ½–½ | Wirz | Schweizer Einzelmeisterschaft 24 Seniors 60+ | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line | |
| Jul 13, 2024 | Wirz | 0–1 | Duerst | Round 1: Wirz, Heinz - Duerst, Martin | Benko Gambit Declined: Main Line | |
| Jun 5, 2024 | Wirz | ½–½ | Luginbuehl | Round 9: Wirz, Heinz - Luginbuehl, Robert | Benoni Defense: King's Pawn Line | |
| — | Wirz | 0–1 | Huss | Schweizer Einzelmeisterschaft 2023 Seniors 60+ | Queen's Indian Defense: Fianchetto Variation | |
| — | Wirz | ½–½ | Filipovic | Schweizer Einzelmeisterschaft 2023 Seniors 60+ | English Defense | |
| — | Wirz | ½–½ | Kuhn | Schweizer Einzelmeisterschaft 2023 Seniors 60+ | Modern Defense: Averbakh System | |
| — | Hugentobler | 0–1 | Wirz | Schweizer Einzelmeisterschaft 2023 Seniors 60+ | French Defense: Rubinstein Variation, Fort Knox Variation | |
| — | Wirthensohn | 1–0 | Wirz | Schweizer Einzelmeisterschaft 2023 Seniors 60+ | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| — | Borner | 0–1 | Wirz | Schweizer Einzelmeisterschaft 2023 Seniors 60+ | French Defense: Chigorin Variation | |
| — | Huss | 1–0 | Wirz | Schweizer Einzelmeisterschaft 2023 Seniors 60+ | French Defense: King's Indian Attack | |
