Lehmen, Roberto
Current rating: 1484
Record: 3-4
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 144 | de Melo Franco, Lucas Lanza (1500) | Lost 0-2 | -181482 |
| 2modern | 235 | Schwartz, Adam (1498) | Lost 0-2 | -181464 |
| 3modern | 355 | Coutinho, Marcelo (1569) | Lost 0-2 | -161448 |
| 4modern | 359 | Diego Da Silva Oliveira, (1448) | Won 2-1 | +181466 |
| 5modern | 326 | Oliveira, Leonardo 9342 (1447) | Won 2-0 | +181484 |
| 6modern | 275 | Parmeggiani da Costa, Romulo (1487) | Won 2-1 | +181502 |
| 7modern | 183 | De Abreu Costa, Thiago (1507) | Lost 0-2 | -181484 |
| average opponent: 1494record: 3-4 | new rating: 1484 | |||