| Winter 2425 |
| Groep B - Jan Piersma |
| Site | Start date | 27-8-2024 | |
| City | End date | 4-2-2025 | |
| Country | Pairing system | Round Robin | |
| Organization | Arbiters |
| Jan Piersma | |
| ID | |
| Rating | 1730 |
| Categories | |
| Nr. | White | Black | Result |
| 1 | Timon Ensink | Jan Piersma | 1−0 |
| 2 | Jan Piersma | ... | |
| 3 | Jan Piersma | John Fokke | ½−½ |
| 4 | Reg Roodzant | Jan Piersma | ½−½ |
| 5 | Jan Piersma | Wim Voet | ½−½ |
| 6 | Kees Struijk | Jan Piersma | 0−1 |
| 7 | Jan Piersma | Rob Broertjes | ½−½ |
| 8 | Sietse Spoelstra | Jan Piersma | ½−½ |
| 9 | Jan Piersma | Koos Hoogland | 1−0 |
| 10 | Jan Piersma | ... | |
| 11 | Jan Piersma | John Beerends | 0−1F |