Horta, Luiza
Current rating: 1520
Record: 2-1-3
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 80 | Raggio, Emilio Dario (1533) | Lost 0-2 | -171483 |
| 3sealed | 101 | Grana, Pedro (1552) | Draw 1-1 | +11484 |
| 4sealed | 101 | Rampon, Eduardo (1500) | Won 2-0 | +181502 |
| 5sealed | 69 | Alves Barroso, Fabio (1519) | Won 2-0 | +181520 |
| 6sealed | 44 | Martinez, Martin (1535) | Draw 1-1 | +11521 |
| 7sealed | 65 | Elizalde, Victor (1501) | Draw 1-1 | -11520 |
| average opponent: 1523record: 2-1-3 | new rating: 1520 | |||