Costa, Marcio
Current rating: 1520
Record: 2-1-2
| Grand Prix Seville 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 88 | Jimenez, Kiko (1650) | Draw 1-1 | +31503 |
| 2sealed | 195 | Posada, Javier (1483) | Draw 1-1 | -11502 |
| 3sealed | 293 | Cintrano Prieto, Marco (1500) | Won 2-1 | +181520 |
| 4sealed | 219 | Soto Romero, Pedro (1518) | Won 2-0 | +181538 |
| 5sealed | 145 | Garcia Guerra, Juan Jose (1538) | Lost 0-2 | -181520 |
| average opponent: 1538record: 2-1-2 | new rating: 1520 | |||