| Interne competitie 2023_2024 |
| Groep 1 - Klaas Wiersema |
| Site | Start date | 22-2-2023 | |
| City | End date | 22-2-2023 | |
| Country | Pairing system | Keizer | |
| Organization | Arbiters |
| Klaas Wiersema | |
| ID | |
| Rating | 1091 |
| Categories | |
| Nr. | White | Black | Result |
| 1 | Douwe Woelinga | Klaas Wiersema | 1−0 |
| 2 | Stanli Polanco | Klaas Wiersema | 1−0 |
| 3 | Klaas Wiersema | Frank Buitenkamp | 1−0 |
| 4 | Klaas Wiersema | Abs with msg | |
| 5 | Klaas Wiersema | Mark Nieuweboer | ½−½ |
| 6 | Klaas Wiersema | Abs for club | |
| 7 | Klaas Wiersema | Ton van der Kaap | 1−0 |
| 8 | Han Wildevuur | Klaas Wiersema | 1−0 |
| 9 | Klaas Wiersema | Cisko Meulenkamp | 1−0 |
| 10 | Klaas Wiersema | Abs for club | |
| 11 | Klaas Wiersema | Abs for club | |
| 12 | Klaas Wiersema | Henk de Ridder | 0−1 |
| 13 | Sven Oolders | Klaas Wiersema | 0−1 |
| 14 | Klaas Wiersema | Abs for club | |
| 15 | Klaas Wiersema | Abs with msg | |
| 16 | Jaap Dijkstra | Klaas Wiersema | 0−1 |
| 17 | Klaas Wiersema | Abs for club | |
| 18 | Klaas Wiersema | Jarek Krawczyk | 0−1 |
| 19 | Bert van der Leest | Klaas Wiersema | 1−0 |
| 20 | Klaas Wiersema | Jos Staats | 0−1 |
| 21 | Klaas Wiersema | Abs for club | |
| 22 | David Pronk | Klaas Wiersema | 1−0 |
| 23 | Klaas Wiersema | Manual pairing bye | |
| 24 | Klaas Wiersema | Abs for club | |
| 25 | Klaas Wiersema | Abs for club | |
| 26 | Klaas Wiersema | Han Wildevuur | 0−1 |
| 27 | Bastiaan Beekman | Klaas Wiersema | 0−1 |
| 28 | Jan Oord | Klaas Wiersema | 1−0 |