Goncalves Quadros, Dubes
Current rating: 1532
Record: 8-6
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 32 | Augusto Silva, Danilo (1551) | Lost 0-2 | -171501 |
| 2modern | 194 | Pini, Pablo (1522) | Won 2-1 | +181519 |
| 3modern | 310 | Cardoso Oliveira, Marcos Adriano (1499) | Won 2-1 | +181537 |
| 4modern | 110 | Oliveira, Antonio (1419) | Won 2-1 | +161553 |
| 5modern | 152 | Barbosa, Cassio (1485) | Won 2-0 | +171570 |
| 6modern | 82 | Dominguez, Martin Sebastian (1437) | Lost 1-2 | -211549 |
| 7modern | 148 | Atanazio Pedroso, Guilherme (1622) | Lost 1-2 | -171532 |
| average opponent: 1505record: 4-3 | new rating: 1532 | |||
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 46 | Teixeira Junior, Edson (1500) | Lost 0-2 | -181482 |
| 2sealed | 149 | Dos Santos Lopes, Lucas (1482) | Won 2-0 | +181500 |
| 3sealed | 63 | Scules Konred, Rodrigo (1500) | Lost 1-2 | -181482 |
| 4sealed | 128 | Oliveira, Carlos Eduardo (1482) | Won 2-1 | +181500 |
| 5sealed | 83 | da Motta, Joao Ricardo L (1503) | Won 2-0 | +181518 |
| 6sealed | 61 | Belliboni, Flavio (1517) | Won 2-0 | +181536 |
| 7sealed | 48 | Pereira, Adriano (1549) | Lost 0-2 | -181518 |
| average opponent: 1505record: 4-3 | new rating: 1518 | |||