| Apr 5, 2026 | Zak | * | Jarabek | Round 6: Zak, Roman - Jarabek, Milan | ? | |
| Apr 4, 2026 | Cerny | * | Zak | Round 5: Cerny, Patrik - Zak, Roman | ? | |
| Apr 4, 2026 | Zak | * | Milicevic | Round 4: Zak, Roman - Milicevic, David | ? | |
| Apr 3, 2026 | Moravec | * | Zak | Round 3: Moravec, Rene - Zak, Roman | ? | |
| Apr 3, 2026 | Zak | * | Paulec | Round 2: Zak, Roman - Paulec, Jakub | ? | |
| Apr 2, 2026 | Babula | * | Zak | Round 1: Babula, Matej - Zak, Roman | ? | |
| Oct 17, 2025 | Zak | ½–½ | Anikeev | Round 9: Zak, Roman - Anikeev, Vyacheslav | King's Indian Defense: Fianchetto Variation, Yugoslav Variation | |
| Oct 16, 2025 | Travnicek | ½–½ | Zak | Round 8: Travnicek, Jaroslav - Zak, Roman | French Defense: Rubinstein Variation, Blackburne Defense | |
| Oct 15, 2025 | Zak | 1–0 | Knettig | Round 7: Zak, Roman - Knettig, Matyas | Nimzo-Larsen Attack: Modern Variation | |
| Oct 15, 2025 | Kocur | 1–0 | Zak | Round 6: Kocur, Valter - Zak, Roman | English Opening: Symmetrical Variation, Mecking Variation | |
| Oct 14, 2025 | Zak | ½–½ | Vanek | Round 5: Zak, Roman - Vanek, Jakub | Wade Defense | |
| Oct 14, 2025 | Valean | 1–0 | Zak | Round 4: Valean, David-Andrei - Zak, Roman | Rapport-Jobava System | |
| Oct 13, 2025 | Barcik | 0–1 | Zak | Round 9: Barcik, Peter - Zak, Roman | Grünfeld Defense: Three Knights Variation, Burille Variation | |
| Oct 13, 2025 | Valean | 1–0 | Zak | Round 8: Valean, David-Andrei - Zak, Roman | Indian Defense | |
| Oct 13, 2025 | Zak | ½–½ | Nyvlt | Round 7: Zak, Roman - Nyvlt, Otto | Nimzo-Larsen Attack: Classical Variation | |
| Oct 13, 2025 | Knettig | 0–1 | Zak | Round 6: Knettig, Matyas - Zak, Roman | French Defense: Exchange Variation | |
| Oct 13, 2025 | Zak | 1–0 | Vederko | Round 3: Zak, Roman - Vederko, Liudmyla | Nimzo-Larsen Attack: Classical Variation | |
| Oct 12, 2025 | Zak | 0–1 | Leszner | Round 5: Zak, Roman - Leszner, Liliana | English Opening: Symmetrical Variation | |
| Oct 12, 2025 | Seifert | 1–0 | Zak | Round 4: Seifert, Henryk - Zak, Roman | French Defense: Advance Variation, Main Line | |
| Oct 12, 2025 | Zak | 1–0 | Rejzek | Round 3: Zak, Roman - Rejzek, Zdenek | Nimzo-Larsen Attack: Classical Variation | |
| Oct 12, 2025 | Opalkova | 0–1 | Zak | Round 2: Opalkova, Zuzana - Zak, Roman | French Defense: Queen's Knight | |
| Oct 12, 2025 | Zak | 0–1 | Babula | Round 1: Zak, Roman - Babula, Milan | Nimzo-Larsen Attack: Classical Variation | |
| Oct 12, 2025 | Valenta | 1–0 | Zak | Round 2: Valenta, Vit Vaclav - Zak, Roman | French Defense: Rubinstein Variation, Blackburne Defense | |
| Oct 11, 2025 | Zak | * | Neschotnyi | Round 1: Zak, Roman - Neschotnyi, Viktor | ? | |
| Oct 11, 2025 | Zak | 1–0 | Neschotnyi | Round 1: Zak, Roman - Neschotnyi, Viktor | King's Indian Attack: Spassky Variation | |
