Rossi Peres Miachon, Thiago
Current rating: 1504
Record: 5-5
| Grand Prix Sao Paulo 2019 (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 496 | Olfos Vargas, Diego (1511) | Lost 0-2 | -171464 |
| 2modern | 470 | Costa De Souza, Marcos Vinicios (1469) | Won 2-1 | +181482 |
| 3modern | 430 | Paniago De Oliveira Amaral, Pedro Henrique (1561) | Won 2-0 | +191501 |
| 4modern | 307 | Ventura, Joao (1521) | Won 2-1 | +191520 |
| 5modern | 144 | de Lima e Silva Borzino, Marcio (1646) | Lost 1-2 | -161504 |
| average opponent: 1542record: 3-2 | new rating: 1504 | |||
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 478 | Martelli, Otavio Augusto (1426) | Won 2-1 | +171517 |
| 2modern | 1 | Campos, Joe (1602) | Won 2-1 | +191536 |
| 3modern | 40 | Iglesias, Fernando (1539) | Lost 1-2 | -181518 |
| 4modern | 231 | Menezes, Hermano (1456) | Lost 0-2 | -191499 |
| 5modern | 366 | Meyrelles Duarte, Romero (1515) | Lost 1-2 | -181481 |
| average opponent: 1508record: 2-3 | new rating: 1481 | |||