Rafael B Vieira,
Current rating: 1485
Record: 2-3
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 142 | Martinez, Jose [VEN] (1518) | Lost 0-2 | -181482 |
| 3standard | 210 | Teixeira Junior, Edson (1597) | Lost 1-2 | -161466 |
| 4standard | 281 | Pessini, Henrique Oliveira (1459) | Won 2-0 | +181484 |
| 5standard | 210 | Nogueira, Rodrigo (1493) | Won 2-0 | +181502 |
| 6standard | 148 | Quintas, Mario (1516) | Lost 0-0 | -171485 |
| average opponent: 1517record: 2-3 | new rating: 1485 | |||