de Souza Mattos, Alecs
Current rating: 1524
Record: 5-4
| Grand Prix Rio de Janeiro 2013 (GTC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 97 | Camara, Aristides (1630) | Lost 0-2 | -161484 |
| 2standard | 286 | Pini, Pablo (1482) | Won 2-1 | +181502 |
| 3standard | 178 | Freixiela, Savio R (1499) | Won 2-0 | +181520 |
| 4standard | 188 | Pereira Junior, Pedro (1668) | Lost 1-2 | -151505 |
| 5standard | 211 | Paz, Juan (1620) | Lost 0-2 | -161489 |
| 6standard | 216 | Santana, Lucas (1462) | Won 2-1 | +181507 |
| 7standard | 174 | de la Fuente Catalan, Francisco Alejandro (1501) | Lost 0-2 | -191488 |
| 8standard | 168 | Pereira, Natanael (1481) | Won 2-0 | +181506 |
| 9standard | 138 | Karl, Leonardo (1501) | Won 2-1 | +181524 |
| average opponent: 1538record: 5-4 | new rating: 1524 | |||