Do Amaral, Guilherme Altieri
Current rating: 1447
Record: 2-5
| Grand Prix Sao Paulo 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 310 | Franzin Bassette, Fabio Luiz (1500) | Lost 1-2 | -181482 |
| 2modern | 510 | Guerrero, Caio (1482) | Won 2-0 | +181500 |
| 3modern | 255 | Belato, Luciano (1514) | Lost 1-2 | -181482 |
| 4modern | 431 | Perez, Claudio (1501) | Lost 0-2 | -171465 |
| 5modern | 460 | Da Costa Martins, Fabio (1500) | Won 2-1 | +181483 |
| 6modern | 372 | Silveira, Vagner Fernando (1482) | Lost 1-2 | -181465 |
| 7modern | 418 | De Oliveira, Breno (1464) | Lost 0-2 | -181447 |
| average opponent: 1492record: 2-5 | new rating: 1447 | |||