| Interne Competitie SENIOREN |
| Senioren - Jan Ackerman |
| Site | Boorstraat | Start date | 25-10-2022 |
| City | Utrecht | End date | 31-5-2023 |
| Country | Netherlands | Pairing system | Swiss |
| Organization | Schaakvereniging Oud Zuylen Utrecht | Arbiters | Marc Jongerius |
| Jan Ackerman | |
| Rating | 1687 |
| Nr. | White | Black | Result |
| 1 | Jan Ackerman | Jaap van der Tuuk | 0−1 |
| 2 | Bart Grifioen | Jan Ackerman | 0−1 |
| 3 | Wout van Veen | Jan Ackerman | 1−0 |
| 4 | Jan Ackerman | Theo Paymans | 1−0 |
| 5 | Max Hugen | Jan Ackerman | 1−0 |
| 6 | Jan Ackerman | Thijs Oostveen | 0−1 |
| 7 | Geert Verweij | Jan Ackerman | 1−0 |
| 8 | Jan Ackerman | Guus van Eeden | 1−0 |
| 9 | Jan Ackerman | Martijn de Haan | 0−1 |
| 10 | Tewl Dino Woldai | Jan Ackerman | 0−1 |
| 11 | Jan Ackerman | Mika Kleibeuker | 0−1 |
| 12 | Ed van Eeden | Jan Ackerman | 1−0 |
| 13 | Jan Ackerman | Abs with msg | |
| 14 | Jan Ackerman | Abs with msg | |
| 15 | Jan Ackerman | Abs with msg | |
| 16 | Jan Ackerman | Abs with msg | |
| 17 | Jan Ackerman | Piet Kooiman | 0−1 |
| 18 | Marc Speijers | Jan Ackerman | 0−1 |
| 19 | Jan Ackerman | Rene ten Bos | 0−1 |
| 20 | Martijn de Haan | Jan Ackerman | 1−0 |