Lobo Bumpus, Roberto
Current rating: 1447
Record: 1-4
| Grand Prix Rio de Janeiro 2013 (GTC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 25 | Cunha, Philippe (1500) | Won 2-0 | +181518 |
| 2standard | 65 | Vieira, Guilherme (1683) | Lost 0-2 | -151503 |
| 3standard | 192 | Oliveira, Wladimir (1500) | Lost 1-2 | -181485 |
| 4standard | 302 | Lopes, Luiz A (1448) | Lost 0-2 | -191466 |
| 5standard | 283 | Silva, Felipe (1419) | Lost 0-2 | -191447 |
| average opponent: 1510record: 1-4 | new rating: 1447 | |||