Perez, Juan Carlos
Current rating: 1510
Record: 8-8
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 475 | Gomes, Miguel (1481) | Lost 1-2 | -191488 |
| 2sealed | 424 | Macia, Adrian (1481) | Won 2-0 | +181506 |
| 3sealed | 355 | Quilez Garrido, Mariano (1500) | Won 2-0 | +181524 |
| 4sealed | 211 | Llopis Martinez, Paco Francisco (1726) | Lost 1-2 | -141510 |
| 5sealed | 265 | Rodriguez Martinez, Jose M (1503) | Won 2-0 | +171527 |
| 6sealed | 175 | Zheng, Zhoujie (1519) | Lost 0-2 | -181509 |
| 7sealed | 248 | Blanco Taboas, Diego (1503) | Lost 1-2 | -181491 |
| 8sealed | 224 | Robledo, Julian (1554) | Won 2-0 | +191510 |
| average opponent: 1533record: 4-4 | new rating: 1510 | |||
| Grand Prix Barcelona 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3 | Barbancho Gonzalez, Ruben (1500) | Won 2-0 | +181518 |
| 2sealed | 117 | Pereira, Fernando (1528) | Won 2-1 | +181536 |
| 3sealed | 34 | Haim, Christophe (1804) | Lost 0-2 | -131523 |
| 4sealed | 128 | Iglesias, Daniel (1471) | Won 2-1 | +171540 |
| 5sealed | 137 | Arias Garcia, Jacob (1588) | Lost 0-2 | -171523 |
| 6sealed | 117 | Aguilar Castillo, David (1516) | Lost 0-2 | -181505 |
| 7sealed | 187 | Gleizes, Camille (1629) | Won 2-1 | +201525 |
| 8sealed | 128 | Perez, Daniel [ESP] (1502) | Lost 0-0 | -181507 |
| average opponent: 1567record: 4-4 | new rating: 1507 | |||