Costa, Eduardo C
Current rating: 1557
Record: 6-3
| Grand Prix Sao Paulo 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 71 | Vascon Bufaro, Ricardo (1500) | Won 2-0 | +181518 |
| 2sealed | 89 | Santana, Gilson (1500) | Won 2-0 | +181536 |
| 3sealed | 25 | Camargo, Murilo (1533) | Won 2-1 | +181554 |
| 4sealed | 72 | Franco Junior, Cassiano (1561) | Won 2-1 | +181572 |
| 5sealed | 24 | Da Silva, Daniel (1572) | Won 2-1 | +181590 |
| 6sealed | 7 | Cuellar, Mario (1573) | Lost 0-2 | -191571 |
| 7sealed | 46 | Garcia, Rafael [BRA] (1610) | Lost 0-2 | -171554 |
| 8sealed | 88 | Klauri, Pedro (1552) | Won 2-1 | +181572 |
| 9sealed | 51 | dos Santos Vieira, Eduardo (1744) | Lost 0-2 | -151557 |
| average opponent: 1572record: 6-3 | new rating: 1557 | |||