Dionysio de Souza, Rafael
Current rating: 1446
Record: 3-6
| Grand Prix Sao Paulo 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 237 | Nakamura, George Y (1500) | Lost 0-2 | -181482 |
| 2sealed | 323 | Barbosa, Kleber (1482) | Won 2-0 | +181500 |
| 3sealed | 203 | Almeida, Marcio (1542) | Won 2-0 | +191519 |
| 4sealed | 143 | Nacao De Moura Portugal, Mar (1518) | Won 2-1 | +181537 |
| 5sealed | 135 | Santos Soares, Vitor (1536) | Lost 0-2 | -181519 |
| 6sealed | 177 | Carneiro, Elton (1522) | Lost 0-2 | -181501 |
| 7sealed | 186 | Miguel, Jeziel Albuquerque (1501) | Lost 1-2 | -181483 |
| 8sealed | 167 | Furstenberger, Alexandre (1466) | Lost 1-2 | -181465 |
| 9sealed | 154 | Araujo, Alice (1464) | Lost 1-2 | -191446 |
| average opponent: 1503record: 3-6 | new rating: 1446 | |||