| Senioren najaarscompetitie 2026-2027 |
| Groep 1 - Rob Kalkman |
| Site | De Boekenberg | Start date | 9/11/2026 |
| City | Spijkenisse | End date | 1/15/2027 |
| Country | Netherlands | Pairing system | Keizer |
| Organization | Schaakvereniging Spijkenisse | Arbiters | W. Hubner |
| Rob Kalkman | |
| ID | |
| Rating | 1988 |
| Categories | |
| Nr. | White | Black | Result |
| 1 | Rob Kalkman | Alex van Alphen | 0−1 |
| 2 | Jerry Sandifort | Rob Kalkman | ½−½ |