Gueiroz, Thiago
Current rating: 1480
Record: 7-8
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 247 | Alves Pereira, Jose Marcelo (1500) | Won 2-1 | +181518 |
| 2modern | 203 | Conceicao Doile, Leonardo (1463) | Lost 1-2 | -191499 |
| 3modern | 466 | Ferreirinha, Guto (1500) | Won 2-0 | +181517 |
| 4modern | 161 | Sant'Anna, Jorgemi (1482) | Lost 0-2 | -191498 |
| 5modern | 302 | Oliveira, Guilherme 294 (1503) | Won 2-1 | +181516 |
| 6modern | 339 | De Freitas Silva, Heliel (1549) | Won 2-0 | +191535 |
| 7modern | 167 | Vinicius, Edson (1504) | Won 2-0 | +171552 |
| 8modern | 101 | Mourao, Tiago (1526) | Won 2-0 | +181570 |
| 9modern | 41 | Da Costa Figueiredo, Daniel (1576) | Lost 0-2 | -181552 |
| 10modern | 85 | Marques Alexandre, Andre David (1557) | Lost 0-2 | -181534 |
| 11modern | 108 | Miller De Oliveira, Rodrigo (1563) | Lost 1-2 | -171517 |
| 12modern | 109 | Akira Matsunaga, Rafael (1489) | Lost 1-2 | -191498 |
| 13modern | 103 | Garreton, Mauricio (1434) | Lost 1-2 | -191479 |
| 14modern | 95 | Santos Navarro, Thales (1508) | Won 2-0 | +191498 |
| 15modern | 91 | Rocha, Jackson (1508) | Lost 0-2 | -181480 |
| average opponent: 1511record: 7-8 | new rating: 1480 | |||