Di Frenco De Oliveri, Guilhe
Current rating: 1517
Record: 4-3
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 90 | Carvalho, Helder (1500) | Lost 1-2 | -181482 |
| 2sealed | 96 | Braga, Francisco (1482) | Lost 0-2 | -181464 |
| 3sealed | 147 | Angiolini, Juan (1466) | Won 2-1 | +181482 |
| 4sealed | 131 | Moraes Sotres, Raul (1480) | Won 2-0 | +181500 |
| 5sealed | 81 | Cavalheiro, Mauro Rocha (1500) | Won 2-0 | +181518 |
| 6sealed | 86 | Dos Santos, Murilo Corral (1517) | Won 2-0 | +181536 |
| 7sealed | 61 | Espinosa, Leonardo (1504) | Lost 0-2 | -191517 |
| average opponent: 1493record: 4-3 | new rating: 1517 | |||