Sierras, Sergio
Current rating: 1461
Record: 2-4
| Grand Prix Barcelona 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 148 | Silva, Andre (1434) | Lost 0-2 | -191481 |
| 2standard | 214 | Riera, Ignasi Esteban (1409) | Won 2-1 | +171498 |
| 3standard | 114 | Sormani, Reto (1509) | Lost 0-2 | -181480 |
| 4standard | 227 | Wielgorski, Daniel (1424) | Won 2-1 | +171497 |
| 5standard | 171 | Giaccone, Nicolas (1501) | Lost 0-2 | -181479 |
| 6standard | 183 | Gallardo Segalas, Dani (1496) | Lost 1-2 | -181461 |
| average opponent: 1462record: 2-4 | new rating: 1461 | |||