| Competitie 2025-2026 |
| Group 1 - Jan Stapel |
| Site | De Nieuwe Haven | Start date | 05-09-2025 |
| City | Abbekerk | End date | 22-05-2026 |
| Country | Netherlands | Pairing system | Amsterdams |
| Organization | Schaakclub Aartswoud | Arbiters |
| Jan Stapel | |
| ID | |
| Rating | 1885 |
| Categories | |
| Nr. | White | Black | Result |
| 1 | Romke Zijlstra | Jan Stapel | ½−½ |
| 1 | Jan Stapel | Ron v. Putten | 1−0 |
| 1 | Willem Bakker | Jan Stapel | 0−1 |
| 2 | Jan Stapel | Gijs Arends | ½−½ |
| 2 | David Verweij | Jan Stapel | 1−0 |
| 2 | Jan Stapel | Herman Smook | 1−0 |
| 3 | Ron v. Putten | Jan Stapel | ½−½ |
| 3 | Jan Stapel | Bob Klein | 1−0 |
| 3 | Gijs Arends | Jan Stapel | 0−1 |
| 4 | Jan Stapel | Marc Helder | 0−1 |
| 4 | Pascal Zijlstra | Jan Stapel | 1−0 |
| 4 | Jan Stapel | Toine Molenaar | ½−½ |