| 17 may 2026 | Kooijmans, Jermo 2255 | Van de Griendt, Jan Willem 2363 | ½-½ | A34 Apertura Inglesa: Symmetrical Variation, Three Knights Variation | Utrecht Open 2026 | Group A | 54 | Ver |
| 17 may 2026 | Van de Griendt, Jan Willem 2363 | Ritzerveld, Noah 2212 | ½-½ | D12 Defensa Eslava: Quiet Variation, Schallopp Defense | Utrecht Open 2026 | Group A | 45 | Ver |
| 16 may 2026 | Martyr, Reginald 2160 | Van de Griendt, Jan Willem 2363 | 0-1 | A15 Apertura Inglesa: Anglo-Indian Defense, King's Knight Variation | Utrecht Open 2026 | Group A | 61 | Ver |
| 15 may 2026 | Bosboom, Ardin 2154 | Van de Griendt, Jan Willem 2363 | 1-0 | A57 Gambito Benko aceptado: Modern Variation | Utrecht Open 2026 | Group A | 69 | Ver |
| 15 may 2026 | Van de Griendt, Jan Willem 2363 | Winter, Sven 2084 | 1-0 | A50 Queen's Indian Accelerated | Utrecht Open 2026 | Group A | 33 | Ver |
| 14 may 2026 | Van de Griendt, Jan Willem 2363 | Broekmeulen, Jasper 2388 | 0-1 | E12 Defensa India de Dama: Kasparov-Petrosian Variation, Main Line | Finals tiebreak: Van de Griendt, Jan Willem - Broekmeulen, Jasper | 26 | Ver |
| 14 may 2026 | Broekmeulen, Jasper 2388 | Van de Griendt, Jan Willem 2363 | 0-1 | A05 Ataque Indio de Rey: Symmetrical Defense | Finale en 3/4e plaats: Broekmeulen, Jasper - Van de Griendt, Jan Willem | 53 | Ver |
| 14 may 2026 | Van de Griendt, Jan Willem 2363 | Ruijgrok, Dennis 2265 | ½-½ | A80 Defensa Holandesa | Semi Final: Van de Griendt, Jan Willem - Ruijgrok, Dennis | 44 | Ver |
| 23 abr 2026 | Van de Griendt, Jan Willem 2364 | Cernousek, Lukas 2449 | 1-0 | E64 Defensa India de Rey: Fianchetto Variation, Yugoslav Variation, Rare Line | SVK Extraliga 2024/2025 | 29 | Ver |
| 23 abr 2026 | Cieslak, Patryk 2495 | Van de Griendt, Jan Willem 2364 | 1-0 | C54 Apertura Italiana: Classical Variation, Giuoco Pianissimo | SVK Extraliga 2024/2025 | 98 | Ver |
| 11 abr 2026 | Van de Griendt, Jan Willem 2364 | De Strycker, Nathan 2337 | 0-1 | D30 Gambito de Dama rehusado | Dutch Meesterklasse 2025/26 | 50 | Ver |
| 28 mar 2026 | De Mon, Gino 2090 | Van de Griendt, Jan Willem 2362 | 0-1 | A57 Gambito Benko: Zaitsev System | Dutch Meesterklasse 2025/26 | 29 | Ver |
| 7 feb 2026 | Boelhouwer, Collin 2126 | Van de Griendt, Jan Willem 2360 | 0-1 | C77 Apertura Española (Ruy López): Morphy Defense, Anderssen Variation | Dutch Meesterklasse 2025/26 | 42 | Ver |
| 26 dic 2025 | Van de Griendt, Jan Willem 2359 | Warmerdam, Max 2573 | 0-1 | E11 Defensa Bogoindia: Retreat Variation | Dutch Meesterklasse 2025/26 | 24 | Ver |
| 22 nov 2025 | Van de Griendt, Jan Willem 2367 | Jens, Jelmer 2356 | 0-1 | E04 Apertura Catalana: Open Defense | Dutch Meesterklasse 2025/26 | 39 | Ver |
| 7 nov 2025 | Pavlidis, Antonios 2569 | Van de Griendt, Jan Willem 2367 | 1-0 | C50 Apertura Italiana: Paris Defense | KNSB competitie 2025/2026 | 25 | Ver |
| 22 sep 2025 | Van de Griendt, Jan Willem 2361 | Senders, Mischa 2307 | 1-0 | A40 Apertura de Peón de Dama: Modern Defense | KNSB competitie 2025/2026 | 65 | Ver |