Arendsen, Joost
Current rating: 1449
Record: 3-6
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 82 | Schwagerle, Gunther (1615) | Won 2-0 | +201520 |
| 2extended | 24 | Beekx, Luc (1526) | Lost 0-2 | -181502 |
| 3extended | 337 | Zinzius, Jacques (1524) | Won 1-0 | +191521 |
| 4extended | 172 | Wo, Zhen Hua (1519) | Lost 0-2 | -181503 |
| 5extended | 283 | Hendrikx, Dolf (1520) | Lost 1-2 | -181485 |
| 6extended | 350 | Bockelandt, Thomas (1483) | Won 2-0 | +181503 |
| 7extended | 234 | Delsard, Benny (1504) | Lost 0-2 | -181485 |
| 8extended | 226 | Brown, Dorian (1481) | Lost 1-2 | -181467 |
| 9extended | 194 | Breughe, Kevin (1463) | Lost 1-2 | -181449 |
| average opponent: 1515record: 3-6 | new rating: 1449 | |||