Sergio O Vanzuita,
Current rating: 1409
Record: 1-6
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 59 | Sampaio da Silva, Caio (1500) | Lost 1-2 | -181482 |
| 2standard | 204 | Cavinato, Endrigo (1428) | Lost 0-2 | -191463 |
| 3standard | 248 | Olsen, Michelle (1464) | Lost 1-2 | -181445 |
| 4standard | 298 | Felipe Komendir, (1446) | Won 2-1 | +181463 |
| 5standard | 257 | Menna, Sergio (1464) | Lost 0-2 | -181445 |
| 6standard | 237 | Douglas Lino De Araujo, (1428) | Lost 0-0 | -181427 |
| 7standard | 200 | De Sousa Silva, Rodrigo (1429) | Lost 0-0 | -181409 |
| average opponent: 1451record: 1-6 | new rating: 1409 | |||