Arkaitz, Jon
Current rating: 1445
Record: 1-4-1
| Grand Prix Bilbao 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 474 | Mendibe, Eneko (1500) | Lost 0-2 | -181482 |
| 2extended | 561 | Azpeitia, Ander (1485) | Lost 0-2 | -181464 |
| 3extended | 544 | Usunaga, Unai (1465) | Won 2-0 | +181482 |
| 4extended | 532 | Heredero, Jose (1497) | Draw 1-1 | 01482 |
| 5extended | 523 | Baena, Rafael (1382) | Lost 1-2 | -191463 |
| 6extended | 529 | Solis, Joaquin (1496) | Lost 0-2 | -181445 |
| average opponent: 1471record: 1-4-1 | new rating: 1445 | |||