Rios, Roque
Current rating: 1517
Record: 4-3
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 53 | Da Cruz Mayer, Rafael (1500) | Won 2-1 | +181518 |
| 2sealed | 37 | Chessini Gomes, Frederico (1518) | Won 2-1 | +181536 |
| 3sealed | 11 | dos Santos Vieira, Eduardo (1536) | Lost 0-2 | -181518 |
| 4sealed | 92 | Winnik Filho, Sergio (1519) | Lost 1-2 | -181500 |
| 5sealed | 79 | Da Silva, Cassiano (1498) | Lost 1-2 | -181482 |
| 6sealed | 115 | Lopes, Juliano Soneca (1482) | Won 2-1 | +181500 |
| 7sealed | 92 | Zonatto, Guilherme Leandro (1456) | Won 2-1 | +171517 |
| average opponent: 1501record: 4-3 | new rating: 1517 | |||