Willy Andersen,
Current rating: 1482
Record: 2-3
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 6 | De Liz, Rafael Gregorio (1500) | Lost 1-2 | -181482 |
| 2standard | 175 | Nascimento, Andre (1487) | Lost 0-2 | -181464 |
| 3standard | 273 | Rezende, Lucas (1463) | Lost 0-2 | -181446 |
| 4standard | 299 | Anderson de Alenncar P, (1446) | Won 2-0 | +181464 |
| 5standard | 255 | Velho de Quadros, Fausto (1464) | Won 2-0 | +181482 |
| average opponent: 1472record: 2-3 | new rating: 1482 | |||