Udenga, Jelger
Current rating: 1490
Record: 3-4
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 353 | Labahn, Nikolas (1501) | Won 2-1 | +181518 |
| 2extended | 167 | Griffioen, Arthur (1554) | Won 2-1 | +191537 |
| 3extended | 120 | Juza, Martin (1768) | Lost 0-2 | -141523 |
| 4extended | 269 | Hermes, Maxime (1676) | Lost 1-2 | -151508 |
| 5extended | 354 | Kempken, Hendrik (1498) | Won 2-1 | +171525 |
| 6extended | 167 | Rodriguez Vilanova, Nestor (1581) | Lost 0-2 | -171508 |
| 7extended | 224 | Smets, Daan (1498) | Lost 1-2 | -181490 |
| average opponent: 1582record: 3-4 | new rating: 1490 | |||