Amaral, Mateus
Current rating: 1469
Record: 4-6-2
| Grand Prix Rio de Janeiro 2013 (GTC standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 147 | Goes, Marcelo (1552) | Lost 0-2 | -171485 |
| 3standard | 110 | Quijada Bahamondes, Alejandro (1485) | Draw 1-1 | 01485 |
| 4standard | 204 | Huarapil, Carlos (1623) | Draw 1-1 | +31488 |
| 5standard | 255 | Pinheiro, Felipe (1465) | Lost 1-2 | -191469 |
| average opponent: 1531record: 0-2-2 | new rating: 1469 | |||
| Grand Prix Sao Paulo 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 115 | Nery, Vinicius (1544) | Lost 1-2 | -171483 |
| 3sealed | 188 | Taveira, Joao Gustavo (1482) | Lost 0-2 | -181465 |
| 4sealed | 307 | Rojas Keim, Felipe Andres (1464) | Lost 0-2 | -181447 |
| 5sealed | 275 | da Silva, Paulo Henrique Men (1463) | Won 2-0 | +181465 |
| 6sealed | 222 | De Paula Gomes, Rodrigo (1482) | Won 2-1 | +181483 |
| 7sealed | 178 | Cesar, Hudson (1500) | Won 2-0 | +191502 |
| 8sealed | 128 | Baltrino, Christian (1523) | Won 2-0 | +181520 |
| 9sealed | 92 | May, Neimar S (1535) | Lost 1-2 | -181502 |
| average opponent: 1499record: 4-4 | new rating: 1502 | |||