Overzicht ontwikkeling ELO-rating voor Jan Ypelaar (startELO: 1500)
| Ronde | Tegenstander | Score | Elo | |
|---|---|---|---|---|
| 1 | Jo Paffen | 0 | 1493 | (- 7) |
| 2 | Toon Kayser | 1 | 1503 | (+ 10) |
| 3 | Rene Knops | 0 | 1493 | (- 10) |
| 4 | Leo Dormans | 0 | 1487 | (- 6) |
| 6 | Paul Hinssen | 0 | 1482 | (- 5) |
| 7 | Ton Koster | 0 | 1472 | (- 10) |
| 9 | Jaap Eilers | 1 | 1483 | (+ 11) |
| 10 | Toon Kayser | 0 | 1473 | (- 10) |
| 11 | Fritz Hoehensteiger | 0 | 1463 | (- 10) |
| 12 | Randy Poettgens | 1 | 1464 | (+ 1) |
| 13 | Ton Koster | 1 | 1474 | (+ 10) |
| 15 | Peter Hoogstraaten | 1 | 1475 | (+ 1) |
| 17 | Toon Kayser | 1 | 1485 | (+ 10) |
| 18 | Randy Poettgens | 1 | 1489 | (+ 4) |
| Huidige ELO: | 1489 |