Da Silva, Guilherme
Current rating: 1445
Record: 1-4
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 83 | Pauly Fernandes, Francisco (1430) | Won 2-0 | +171517 |
| 2sealed | 29 | Cabrera Tiznado, Alvaro (1518) | Lost 0-2 | -181499 |
| 3sealed | 117 | Bonnet, Pablo (1500) | Lost 0-2 | -181481 |
| 4sealed | 110 | Oliveira Da Silva, Leonardo (1482) | Lost 0-2 | -181463 |
| 5sealed | 142 | De Oliveira Py, Denis (1464) | Lost 0-2 | -181445 |
| average opponent: 1479record: 1-4 | new rating: 1445 | |||