Vogt, Guilherme
Current rating: 1481
Record: 3-4
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 61 | Oliverie De Silva, Vinicius (1500) | Won 2-1 | +181518 |
| 2sealed | 35 | Almeida, Marcio (1464) | Lost 0-2 | -191499 |
| 3sealed | 111 | Fischer Fonseca, Joao Gabriel (1500) | Lost 1-2 | -181481 |
| 4sealed | 121 | Oliveira, Victor (1482) | Won 2-1 | +181499 |
| 5sealed | 82 | Almeida, Marcos Vinicius (1500) | Lost 1-2 | -181481 |
| 6sealed | 100 | Martins, Jose (1497) | Won 2-1 | +181499 |
| 7sealed | 80 | Cruz, Jorge (1471) | Lost 0-2 | -181481 |
| average opponent: 1488record: 3-4 | new rating: 1481 | |||