| 1 nov 2025 | Hovhannisyan, Artur 2192 | Kather, Yannick 2153 | 1-0 | B23 Defensa Siciliana: Closed, Traditional | Runde 7: Hovhannisyan, Artur - Kather, Yannick | 46 | Ver |
| 1 nov 2025 | Kather, Yannick 2153 | Tscheuschner, Georg, Dr. 2207 | ½-½ | B25 Defensa Siciliana: Closed | Runde 6: Kather, Yannick - Tscheuschner, Georg, Dr. | 10 | Ver |
| 2 sep 2025 | Motola, Jacopo 2333 | Kather, Yannick 2152 | ½-½ | B31 Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | Quinto turno: Motola, Jacopo - Kather, Yannick | 72 | Ver |
| 1 sep 2025 | Kather, Yannick 2152 | Brunello, Sabino 2483 | 0-1 | C86 Apertura Española (Ruy López): Closed, Worrall Attack, Castling Line | Quarto turno: Kather, Yannick - Brunello, Sabino | 44 | Ver |