Renato Costa,
Current rating: 1446
Record: 1-4
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 60 | Cavalcanti, Pedro (1479) | Lost 0-2 | -181482 |
| 2standard | 210 | Daniel Nassif Mokarzel, (1482) | Lost 1-2 | -181464 |
| 3standard | 249 | Nicolas Felipe de Oliv, (1464) | Won 2-1 | +181482 |
| 4standard | 246 | Ferreira Landim, Felipe (1480) | Lost 1-2 | -181464 |
| 5standard | 281 | Pedro Paulo Brockveld, (1464) | Lost 0-2 | -181446 |
| average opponent: 1474record: 1-4 | new rating: 1446 | |||