| Interne Competitie SENIOREN |
| Senioren - Theo Rooijakkers |
| 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 |
| Theo Rooijakkers | |
| Rating | 1449 |
| Nr | White | Black | Result |
| 1 | Theo Rooijakkers | Ed van Eeden | 0−1 |
| 2 | Theo Rooijakkers | Jan Gijzen | 1−0 |
| 3 | Louis Klaasens | Theo Rooijakkers | 0−1 |
| 4 | Wouter Visser | Theo Rooijakkers | 1−0 |
| 5 | Theo Rooijakkers | Thijs Oostveen | 0−1 |
| 6 | Theo Rooijakkers | Abs with msg | |
| 7 | Theo Rooijakkers | Abs with msg | |
| 8 | Theo Rooijakkers | Abs with msg | |
| 9 | Bertrand Weegenaar | Theo Rooijakkers | 1−0 |
| 10 | Theo Rooijakkers | Abs with msg | |
| 11 | Theo Rooijakkers | Abs with msg | |
| 12 | Theo Rooijakkers | Abs with msg |