Guillermo S.,
Current rating: 1507
Record: 3-3
| Grand Prix Rio de Janeiro 2013 (GTC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 12 | Casassanta, Thiago (1500) | Won 2-0 | +181518 |
| 5standard | 12 | Maximo, Mario Motta de Almei (1555) | Lost 0-2 | -171501 |
| 6standard | 12 | dos Reis Paim, Paulo Ricardo (1554) | Won 2-0 | +191520 |
| 7standard | 12 | Contreras, Hugo (1633) | Lost 1-2 | -161504 |
| 8standard | 12 | Freitas, Fernando Luiz (1513) | Won 2-0 | +181522 |
| 9standard | 12 | Martins, Mateus (1706) | Lost 0-2 | -151507 |
| average opponent: 1577record: 3-3 | new rating: 1507 | |||