Roberto, Jose
Current rating: 1509
Record: 5-5
| Grand Prix Porto Alegre 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 90 | Ponciano, Matheus (1519) | Won 2-0 | +181518 |
| 3standard | 71 | Rosenmann, Thiago (1538) | Lost 0-2 | -171501 |
| 4standard | 136 | Martins, Rodrigo (1553) | Won 2-1 | +191520 |
| 5standard | 61 | Melamed, Jonathan (1885) | Lost 0-2 | -121508 |
| 6standard | 166 | Montenegro, Henrique (1521) | Lost 0-2 | -181490 |
| 7standard | 173 | Alexandre Matos, Ricardo (1502) | Won 2-0 | +181508 |
| 8standard | 109 | Rivas Rojas, Joaquin (1457) | Won 2-0 | +181526 |
| 9standard | 101 | Amorim, Rodrigo (1476) | Won 2-0 | +171543 |
| 10standard | 72 | Labruna, Leonardo (1661) | Lost 1-2 | -161527 |
| 11standard | 77 | Segura Vega, Esteban Anibal (1537) | Lost 1-2 | -181509 |
| average opponent: 1565record: 5-5 | new rating: 1509 | |||