Wiliam Silva De Carval,
Current rating: 1616
Record: 10-4
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 121 | Degaspare, Adrien Gustavo (1595) | Won 2-0 | +201520 |
| 3standard | 78 | Rafael Sampaio, (1518) | Won 2-1 | +181538 |
| 4standard | 66 | Carneiro, Jean Carlos (1536) | Won 2-1 | +181556 |
| 5standard | 41 | de Jesus Freitas, Marcos Paulo (1555) | Won 2-0 | +181574 |
| 6standard | 20 | Costa, Sergio [BRA] (1738) | Won 0-0 | +211595 |
| 7standard | 7 | Martins, Felipe (1612) | Won 1-0 | +181613 |
| 8standard | 2 | Casatti, Vagner William (1689) | Won 2-0 | +191632 |
| 9standard | 1 | Higuera, Andres (1646) | Won 2-1 | +191651 |
| 10standard | 1 | Alcalde, Juan Pablo (1645) | Lost 1-2 | -191632 |
| 11standard | 5 | Almeida, Marcio (1586) | Won 2-1 | +181650 |
| 12standard | 3 | Santini, Wendell (1632) | Lost 0-2 | -191631 |
| 13standard | 6 | Cespedes, Cristian (1603) | Won 2-1 | +181649 |
| 14standard | 3 | Nakazora Abe, Allison (1593) | Lost 0-2 | -191630 |
| 15standard | 7 | Bucher, Manuel (1856) | Lost 0-2 | -141616 |
| average opponent: 1629record: 10-4 | new rating: 1616 | |||