| 15 ago 2026 | Mylonas, Konstantinos 2069 | Gijsen, William 2163 | 0-1 | D05 Apertura de Peón de Dama: Colle System | Open Letní Praha 2026 | 32 | Ver |
| 14 ago 2026 | Gijsen, William 2163 | Walek, Petr 2303 | 0-1 | C26 Apertura Vienesa: Mieses Variation | Open Letní Praha 2026 | 34 | Ver |
| 12 ago 2026 | Lalic, Bogdan 2297 | Gijsen, William 2163 | ½-½ | E11 Defensa Bogoindia: Nimzowitsch Variation | Open Letní Praha 2026 | 22 | Ver |
| 11 ago 2026 | Gijsen, William 2163 | Signorelli, Gaetano 2204 | ½-½ | B10 Defensa Caro-Kann: Two Knights Attack | Open Letní Praha 2026 | 41 | Ver |
| 10 ago 2026 | Novotny, David 2009 | Gijsen, William 2163 | 0-1 | B46 Defensa Siciliana: Taimanov Variation | Open Letní Praha 2026 | 68 | Ver |
| 8 ago 2026 | Dudarec, Elias 2001 | Gijsen, William 2163 | 0-1 | B20 Defensa Siciliana: Wing Gambit, Marshall Variation | Open Letní Praha 2026 | 40 | Ver |
| 23 may 2026 | Citak, Selim 2319 | Gijsen, William 2185 | ½-½ | D55 Gambito de Dama rehusado: Modern Variation, Normal Line | 18th BPB Limburg Open | Open | 49 | Ver |
| 21 feb 2026 | Gijsen, William 2204 | De Winter, Arthur 2449 | 0-1 | B56 Defensa Siciliana: Classical Variation, Fianchetto Variation | Noteboomtoernooi 2026 | Group A | 42 | Ver |
| 13 sep 2025 | Arnold, Rhys 2133 | Gijsen, William 2112 | 1-0 | B47 Defensa Siciliana: Taimanov Variation, Bastrikov Variation | Dutch Blitz Championship 2025 | Final B | 49 | Ver |
| 13 sep 2025 | Gijsen, William 2112 | IJzermans, Cees 2050 | 0-1 | B01 Defensa Escandinava: Valencian Variation | Dutch Blitz Championship 2025 | Final B | 35 | Ver |
| 13 sep 2025 | Smeets, Kobe 2336 | Gijsen, William 2112 | 0-1 | A07 King's Indian Attack, with Bf5 | Dutch Blitz Championship 2025 | Final B | 40 | Ver |
| 13 sep 2025 | Kurt, Sascha 2070 | Gijsen, William 2112 | 0-1 | B48 Defensa Siciliana: Taimanov Variation, Bastrikov Variation, English Attack | Dutch Blitz Championship 2025 | Final B | 45 | Ver |
| 13 sep 2025 | Gijsen, William 2112 | Dinanath, Hrdya 2052 | 1-0 | C29 Apertura Vienesa: Vienna Gambit, Paulsen Attack | Dutch Blitz Championship 2025 | Final B | 34 | Ver |
| 13 sep 2025 | Gijsen, William 2112 | Ritzerveld, Noah 2150 | 0-1 | D10 Defensa Eslava | Dutch Blitz Championship 2025 | Final B | 15 | Ver |
| 13 sep 2025 | Gijsen, William 2112 | Kazarian, Anna-Maja 2239 | 1-0 | B14 Defensa Caro-Kann: Panov Attack | 3.5: Gijsen, William - Kazarian, Anna-Maja | 27 | Ver |
| 13 sep 2025 | Grooten, Herman 2206 | Gijsen, William 2112 | 1-0 | D38 Gambito de Dama rehusado: Ragozin Defense | 3.2: Grooten, Herman - Gijsen, William | 25 | Ver |