| 11 abr 2026 | De Jong, Jan-Willem 2410 | Van Batenburg, Mees 2225 | ½-½ | A96 Defensa Holandesa: Classical Variation, Huisl Variation | Dutch Meesterklasse 2025/26 | 29 | Ver |
| 28 mar 2026 | Van Foreest, Machteld 2307 | De Jong, Jan-Willem 2411 | ½-½ | C55 Apertura Italiana: Two Knights Defense, Modern Bishop's Opening | Dutch Meesterklasse 2025/26 | 15 | Ver |
| 8 mar 2026 | Burg, Twan 2479 | De Jong, Jan-Willem 2411 | ½-½ | D78 Defensa Neogrünfeld: Classical Variation, Original Defense | KNSB competitie 2025/2026 | 77 | Ver |
| 7 feb 2026 | Sprangers, Remco 2219 | De Jong, Jan-Willem 2408 | 0-1 | C45 Apertura Escocesa: Mieses Variation | Dutch Meesterklasse 2025/26 | 37 | Ver |
| 22 nov 2025 | De Jong, Jan-Willem 2408 | Kerigan, Demre 2362 | ½-½ | E90 Defensa India de Rey: Normal Variation, Rare Defenses | Dutch Meesterklasse 2025/26 | 46 | Ver |
| 7 nov 2025 | De Jong, Jan-Willem 2408 | Zwirs, Nico 2448 | ½-½ | D37 Gambito de Dama rehusado: Barmen Variation | KNSB competitie 2025/2026 | 16 | Ver |
| 25 oct 2025 | Kobo, Ori 2480 | De Jong, Jan-Willem 2420 | ½-½ | A07 Ataque Indio de Rey: Double Fianchetto | European Chess Club Cup 2025 | Open Matches 1-16 | 34 | Ver |
| 24 oct 2025 | De Jong, Jan-Willem 2420 | Eggleston, David J 2357 | ½-½ | A14 Apertura Inglesa: Agincourt Defense, Neo-Catalan Declined | European Chess Club Cup 2025 | Open Matches 1-16 | 30 | Ver |
| 23 oct 2025 | Duijn, Richard 2179 | De Jong, Jan-Willem 2420 | ½-½ | D11 Defensa Eslava: Modern Line | European Chess Club Cup 2025 | Open Matches 17+ | 33 | Ver |
| 22 oct 2025 | Durak, Can 2425 | De Jong, Jan-Willem 2420 | 1-0 | A07 Ataque Indio de Rey | European Chess Club Cup 2025 | Open Matches 1-16 | 50 | Ver |
| 21 oct 2025 | De Jong, Jan-Willem 2420 | Nogerbek, Kazybek 2543 | ½-½ | D35 Gambito de Dama rehusado: Exchange Variation, Positional Variation | European Chess Club Cup 2025 | Open Matches 1-16 | 28 | Ver |
| 19 oct 2025 | De Jong, Jan-Willem 2420 | Cordts, Ingo 2147 | 0-1 | E49 Defensa Nimzoindia: Normal Variation, Botvinnik System | European Chess Club Cup 2025 | Open Matches 17+ | 43 | Ver |
| 4 oct 2025 | De Jong, Jan-Willem 2420 | Baltic, Fatih 2276 | 1-0 | A42 Defensa Moderna: Kotov Variation | Dutch Meesterklasse 2025/26 | 33 | Ver |
| 20 sep 2025 | Grutter, Tim 2392 | De Jong, Jan-Willem 2420 | ½-½ | C69 Apertura Española (Ruy López): Exchange Variation, King's Bishop Variation | Dutch Meesterklasse 2025/26 | 25 | Ver |