Rosenberg, Nelson
Current rating: 1448
Record: 1-4
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 51 | De Abreu Costa, Thiago (1500) | Won 2-0 | +181518 |
| 2modern | 66 | Gavilondo, Nicolas (1593) | Lost 0-2 | -171501 |
| 3modern | 243 | Rivero, Santiago (1533) | Lost 0-2 | -171484 |
| 4modern | 322 | Castro Reis, Rudson (1495) | Lost 1-2 | -181466 |
| 5modern | 324 | Souza Tassoni, Rodrigo (1462) | Lost 0-2 | -181448 |
| average opponent: 1516record: 1-4 | new rating: 1448 | |||