| Game | Result | Opening | Date |
|---|---|---|---|
| Kostolansky,Sebastian Lukas (2427) – Bochnicka,Vladimir ml. (2357) | 1/2-1/2 | Sicilian | 2026-06-21 |
| Sahidi,Samir (2484) – Kostolansky,Sebastian Lukas (2427) | 1-0 | QGD | 2026-06-20 |
| Kostolansky,Sebastian Lukas (2427) – Michalik,P (2540) | 1/2-1/2 | Caro-Kann | 2026-06-19 |
| Neugebauer,Martin (2483) – Kostolansky,Sebastian Lukas (2427) | 0-1 | Sicilian | 2026-06-18 |
| Kostolansky,Sebastian Lukas (2427) – Haring,Filip (2457) | 1/2-1/2 | Sicilian | 2026-06-17 |
| Gazik,Viktor (2529) – Kostolansky,Sebastian Lukas (2427) | 1-0 | Sicilian | 2026-06-16 |
| Kostolansky,Sebastian Lukas (2427) – Rybka,Simon (2354) | 1/2-1/2 | Sicilian | 2026-06-15 |
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