Perez, Roger
Current rating: 1414
| Grand Prix Barcelona 2018 (modern) | starting rating: 1381 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 426 | Diaz Rojo, Ricardo (1662) | Lost 0-2 | -131368 |
| 2modern | 537 | Cabrera, Yone (1565) | Lost 1-2 | -151353 |
| 3modern | 688 | Tudela, Mathieu (1464) | Won 2-0 | +201373 |
| 4modern | 579 | Olive, Gaston (1479) | Won 2-1 | +201393 |
| 5modern | 450 | Yacov, Yarden (1502) | Won 2-1 | +201413 |
| 6modern | 422 | Pla, David (1799) | Won 2-0 | +251438 |
| 7modern | 254 | Pombinho, Fabio (1731) | Lost 0-2 | -131425 |
| 8modern | 335 | Soumet, Arnaud (1821) | Lost 0-2 | -111414 |
| top | average opponent: 1628record: 4-4 | new rating: 1414 | ||
| Grand Prix Barcelona 2017 (AER standard) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 107 | Prinzell, Johan (1798) | Lost 0-2 | -121433 |
| 4standard | 387 | Fischer, Juliane (1230) | Lost 0-2 | -221411 |
| 5standard | 410 | Splendori, Giuseppe (1511) | Lost 1-2 | -161395 |
| 6standard | 438 | Nolla Sendra, Arnau (1573) | Lost 0-2 | -141381 |
| top | average opponent: 1528record: 0-4 | new rating: 1381 | ||
| Grand Prix Barcelona 2016 (SOI limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 73 | Termis Trilles, Ernesto (1469) | Lost 0-2 | -191481 |
| 2sealed | 670 | Levy, Jonathan [ISR] (1456) | Lost 0-2 | -181463 |
| 3sealed | 888 | Ortuno, Aleix (1463) | Lost 0-2 | -181445 |
| top | average opponent: 1462record: 0-3 | new rating: 1445 | ||