Piernas, Juan Antonio
Current rating: 1446
Record: 0-3-3
| Grand Prix Madrid 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 300 | Dorlet, Frederic (1509) | Draw 1-1 | 01500 |
| 2legacy | 279 | Andrzejewski, Jakub (1452) | Draw 1-1 | -11499 |
| 3legacy | 372 | Moruno, Alberto (1500) | Lost 0-2 | -181481 |
| 4legacy | 477 | Moneo, Fernando (1482) | Lost 0-2 | -181463 |
| 5legacy | 485 | Aldama, Ignacio I (1468) | Draw 1-1 | 01463 |
| 6legacy | 416 | Rodriguez, Abraham (1474) | Lost 0-2 | -171446 |
| average opponent: 1481record: 0-3-3 | new rating: 1446 | |||