Diego Giffoni,
Current rating: 1555
Record: 6-3
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 23 | Luis Fernando de J. Tu, (1500) | Won 2-0 | +181518 |
| 2standard | 101 | Cingolani, Julian (1586) | Lost 0-2 | -171501 |
| 3standard | 209 | Sampaio, Cassiano (1489) | Won 2-0 | +181519 |
| 4standard | 152 | Studart, Rafael (1612) | Lost 1-2 | -161503 |
| 5standard | 234 | Matheus Lucas, (1500) | Won 2-0 | +181521 |
| 6standard | 187 | Lucas Motta da Rosa, (1519) | Won 0-0 | +181539 |
| 7standard | 114 | Vieira, Victor (1497) | Lost 0-2 | -191520 |
| 8standard | 106 | Pauly Fernandes, Francisco (1448) | Won 2-0 | +171537 |
| 9standard | 74 | Lambert Maniezzo, Marcel Filipe (1534) | Won 2-1 | +181555 |
| average opponent: 1520record: 6-3 | new rating: 1555 | |||