Joao Gabriel Ribeiro d,
Current rating: 1428
Record: 2-6
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 138 | Paulo Maria, (1500) | Lost 0-2 | -181482 |
| 2standard | 199 | Villa Lobos, Leonardo (1501) | Lost 0-2 | -181464 |
| 3standard | 261 | Kadekari, Willian (1464) | Lost 0-2 | -181446 |
| 4standard | 296 | Mario Takeshi Homma, (1446) | Won 2-1 | +181464 |
| 5standard | 283 | da Conceicao Oliveira, Shigeo Yamada (1446) | Won 2-0 | +181482 |
| 6standard | 202 | Lucas Pereira, (1482) | Lost 0-0 | -181464 |
| 7standard | 190 | Diego K Vieira, (1465) | Lost 0-2 | -181446 |
| 8standard | 155 | De Sousa Silva, Rodrigo (1447) | Lost 0-2 | -181428 |
| average opponent: 1469record: 2-6 | new rating: 1428 | |||