Da Cruz Mayer, Rafael
Current rating: 1518
Record: 4-3
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 53 | Rios, Roque (1500) | Lost 1-2 | -181482 |
| 2sealed | 97 | Borges, Bruno (1484) | Lost 1-2 | -181464 |
| 3sealed | 134 | Schmidt, Albano Francisco (1464) | Won 2-1 | +181482 |
| 4sealed | 144 | Carvalho, Diego (1482) | Won 2-1 | +181500 |
| 5sealed | 87 | Ewerling, Itibere (1443) | Won 2-0 | +171517 |
| 6sealed | 79 | Walter, Joaquin (1518) | Won 2-1 | +181535 |
| 7sealed | 62 | Villela, Artur (1585) | Lost 1-2 | -171518 |
| average opponent: 1497record: 4-3 | new rating: 1518 | |||