Sidnei Freitas Dos Santos Jr,
Current rating: 1445
Record: 1-4
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 84 | Figueiro, Cleo (1500) | Won 2-1 | +181518 |
| 2sealed | 65 | Rodriguez, Bruno (1518) | Lost 0-2 | -181500 |
| 3sealed | 118 | Lucindo, Fabiano (1451) | Lost 0-2 | -191481 |
| 4sealed | 135 | Glasser, Roger (1483) | Lost 1-2 | -181463 |
| 5sealed | 143 | Barcelos, Hederson (1464) | Lost 0-2 | -181445 |
| average opponent: 1483record: 1-4 | new rating: 1445 | |||