Cooper Martin de la Sierra,
Current rating: 1540
Record: 5-3
| Grand Prix Seville 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 261 | Garcia, Diego (1464) | Won 2-0 | +171517 |
| 2sealed | 97 | Montserrat, Chris (1518) | Won 2-1 | +181535 |
| 3sealed | 13 | Curto Vives, Xavi (1736) | Lost 0-2 | -141521 |
| 4sealed | 186 | Fajardo, Javier (1505) | Lost 0-2 | -181503 |
| 5sealed | 203 | Munoz de la Pena, David (1498) | Won 2-0 | +181521 |
| 6sealed | 144 | Chaves, Rafael (1518) | Won 2-0 | +181539 |
| 7sealed | 104 | Graca, Renato (1591) | Won 2-1 | +191558 |
| 8sealed | 50 | Cordero Valle, Marcos (1573) | Lost 0-2 | -181540 |
| average opponent: 1551record: 5-3 | new rating: 1540 | |||