Almeida, Marcos Vinicius
Current rating: 1554
Record: 5-2
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 71 | Dominguez, Rodrigo (1500) | Won 2-1 | +181518 |
| 2sealed | 23 | dos Santos Vieira, Eduardo (1518) | Lost 0-2 | -181500 |
| 3sealed | 74 | Braga, Francisco (1500) | Lost 1-2 | -181482 |
| 4sealed | 147 | Barakat, Gihad (1482) | Won 2-0 | +181500 |
| 5sealed | 82 | Vogt, Guilherme (1499) | Won 2-1 | +181518 |
| 6sealed | 85 | Baldin, Gregor (1521) | Won 2-1 | +181536 |
| 7sealed | 60 | Toro, Rafael W (1520) | Won 2-0 | +181554 |
| average opponent: 1506record: 5-2 | new rating: 1554 | |||