Castro, Marcos
Current rating: 1485
Record: 2-3-2
| Grand Prix Bilbao 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 417 | Krause, Tim (1500) | Draw 1-1 | 01500 |
| 2extended | 476 | Ramirez, Daniel [ESP] (1500) | Won 2-0 | +181518 |
| 3extended | 435 | Diaz Marquez, Jordan (1701) | Lost 1-2 | -151503 |
| 4extended | 495 | Solano, David (1500) | Lost 1-2 | -181485 |
| 5extended | 525 | Arevalo, Jose Antonio (1484) | Won 2-0 | +181503 |
| 6extended | 484 | Galvez, Candido (1501) | Lost 0-2 | -181485 |
| 7extended | 490 | Rodriguez-Triana Carba, (1484) | Draw 1-1 | 01485 |
| average opponent: 1524record: 2-3-2 | new rating: 1485 | |||