Barros, Matheus
Current rating: 1501
Record: 7-7
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 506 | Marins, Luiz (1500) | Lost 0-2 | -181501 |
| 2modern | 426 | Ferreira Val, Lucas (1482) | Lost 0-2 | -181483 |
| 3modern | 612 | Oliveira Resende Formozo Arantes, Henrique (1445) | Won 2-0 | +171500 |
| 4modern | 621 | Balbino Guimaraes, Mateus (1483) | Won 2-1 | +181518 |
| 5modern | 420 | Lagos, Cristian (1589) | Lost 1-2 | -171501 |
| average opponent: 1500record: 2-3 | new rating: 1501 | |||
| Grand Prix Sao Paulo 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 110 | Dirceu Alves Barbosa, Wekisley (1478) | Won 2-0 | +181518 |
| 2modern | 198 | Rosolia, Bruno (1518) | Won 2-1 | +181536 |
| 3modern | 147 | Miranda, Eric (1545) | Lost 1-2 | -181518 |
| 4modern | 260 | Avila, Renato (1519) | Won 2-1 | +181536 |
| 5modern | 171 | Mendonca, Victor (1534) | Lost 0-2 | -181518 |
| 6modern | 257 | Santos Secco, Leonardo Matheus (1514) | Won 2-1 | +181536 |
| 7modern | 166 | Oliveira, Fabio (1577) | Lost 0-2 | -181518 |
| 8modern | 186 | Souza Silva, Swandher (1518) | Lost 1-2 | -181500 |
| 9modern | 264 | Vale, Rafael (1556) | Won 2-1 | +191519 |
| average opponent: 1529record: 5-4 | new rating: 1519 | |||