| Intern 2024/2025 |
| Group 1 - Jan Ackerman |
| Site | Dijckzigt | Start date | 9-9-2025 |
| City | Utrecht | End date | 1-7-2026 |
| Country | Netherlands | Pairing system | Ladder |
| Organization | Schaakvereniging Oud Zuylen Utrecht | Arbiters | Marc Jongerius |
| Jan Ackerman | |
| ID | |
| Rating | 1571 |
| Categories | |
| Nr. | White | Black | Result |
| 1 | Thijs Oostveen | Jan Ackerman | 1−0 |
| 2 | Jan Ackerman | Marc Jongerius | 1−0 |
| 3 | Jan Ackerman | Wout van Goor | 0−1 |
| 4 | Jan Ackerman | Abs with msg | |
| 5 | Jan Ackerman | Abs with msg | |
| 6 | Jan Willem Lubbers | Jan Ackerman | 1−0 |
| 7 | Jan Ackerman | Abs with msg | |
| 8 | Jan Ackerman | Abs with msg |