Marcial de Carvalho,
Current rating: 1482
Record: 2-3
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 82 | Fernando Siqueira, (1500) | Lost 0-2 | -181482 |
| 2standard | 190 | Vieira, Paulo T (1482) | Won 2-0 | +181500 |
| 3standard | 144 | Morales, Nicolas (1482) | Lost 0-2 | -181482 |
| 4standard | 239 | Faillace, Julio Cesar (1481) | Won 2-1 | +181500 |
| 5standard | 175 | Augusto Da Silva, Cesar (1500) | Lost 0-2 | -181482 |
| average opponent: 1489record: 2-3 | new rating: 1482 | |||