Sampaio, David Bassanelli
Current rating: 1427
Record: 2-6
| Grand Prix Sao Paulo 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 94 | Machado, Guilherme (1500) | Lost 1-2 | -181482 |
| 2sealed | 231 | Arauso, Leonardo de S (1482) | Won 2-1 | +181500 |
| 3sealed | 141 | Goncalves Pinto, Bruno (1500) | Lost 0-2 | -181482 |
| 4sealed | 279 | De Campos Correa De Moraes, Cesar Henrique (1481) | Lost 0-2 | -181464 |
| 5sealed | 284 | Vasques, Gustavo (1464) | Lost 0-2 | -181446 |
| 6sealed | 260 | de Alcantara, Felipe Trefiglio (1446) | Won 2-0 | +181464 |
| 7sealed | 216 | Ieasari, Ezequiel M (1403) | Lost 1-2 | -191445 |
| 8sealed | 182 | Araujo, Alice (1446) | Lost 0-2 | -181427 |
| average opponent: 1465record: 2-6 | new rating: 1427 | |||