Overzicht ontwikkeling ELO-rating voor Geert Koster (startELO: 1708)
| Ronde | Tegenstander | Score | Elo | |
|---|---|---|---|---|
| 1 | Jan Gottschal | ½ | 1703 | (- 5) |
| 3 | Gert Nijenhuis | 1 | 1706 | (+ 3) |
| 4 | Sander Spijkers | ½ | 1706 | (+ 0) |
| 5 | Ruud Goossens | 0 | 1698 | (- 8) |
| 6 | Wim Orriens | 1 | 1701 | (+ 3) |
| 7 | Leo van Noord | ½ | 1698 | (- 3) |
| 8 | Jan Hahne | ½ | 1697 | (- 1) |
| 9 | Andre Eisink | 1 | 1706 | (+ 9) |
| 10 | Cyril Wolters | 1 | 1713 | (+ 7) |
| 11 | Jan Gottschal | 1 | 1718 | (+ 5) |
| 12 | Fahed Mohabeke | 1 | 1718 | (+ 0) |
| 13 | extern (1650) | 0 | 1707 | (- 11) |
| 14 | Jos Hooman | 1 | 1709 | (+ 2) |
| 15 | Gert Nijenhuis | 1 | 1709 | (+ 0) |
| 16 | Sander Spijkers | 0 | 1701 | (- 8) |
| 17 | extern (1700) | 0 | 1690 | (- 11) |
| 18 | Nico Pols | 1 | 1693 | (+ 3) |
| 19 | Ad Reijnoudt | 1 | 1696 | (+ 3) |
| 20 | Ruud Goossens | 1 | 1706 | (+ 10) |
| 21 | Jan Hahne | 0 | 1696 | (- 10) |
| 22 | Leo van Noord | 0 | 1682 | (- 14) |
| 23 | Cyril Wolters | 0 | 1669 | (- 13) |
| 25 | Wim Orriens | 1 | 1675 | (+ 6) |
| 27 | Fahed Mohabeke | 1 | 1677 | (+ 2) |
| 28 | Andre Eisink | 0 | 1663 | (- 14) |
| Huidige ELO: | 1663 |