Prieto, Juan Manuel
Current rating: 1486
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 118 | Fernandez Rodriguez, Juan C (1533) | Won 2-0 | +191502 |
| 2sealed | 52 | Sapina, Sergio (1518) | Lost 0-2 | -181484 |
| 3sealed | 280 | Galan Zapatera, Alvaro (1482) | Won 2-0 | +181502 |
| 4sealed | 344 | Requena, Herminio (1504) | Won 2-0 | +181520 |
| 5sealed | 91 | Ishii, Kuniyoshi (1647) | Lost 1-2 | -161504 |
| 6sealed | 457 | Jaraiz Orden, Miguel Angel (1523) | Lost 1-2 | -181486 |
| top | average opponent: 1535record: 3-3 | new rating: 1486 | ||
| Grand Prix Seville 2003 (LGN limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 73 | Diestro Maldonado, Jose Manuel (1500) | Lost 0-2 | -181499 |
| 5sealed | 86 | Olano, Inigo (1536) | Won 2-0 | +181517 |
| 6sealed | 58 | Segura, Pablo (1554) | Lost 1-2 | -171500 |
| 7sealed | 100 | Ramos Rentero, Luis Miguel (1536) | Lost 1-2 | -171483 |
| top | average opponent: 1532record: 1-3 | new rating: 1483 | ||
| Grand Prix Barcelona 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 4 | Sagol, Omar (1697) | Lost 1-2 | -141486 |
| 5sealed | 90 | Masriera, Jordi (1536) | Won 2-1 | +181504 |
| 6sealed | 35 | Arico, Pasquale (1551) | Won 2-0 | +191523 |
| 7sealed | 25 | Tutier, Christophe (1572) | Won 2-0 | +191542 |
| 8sealed | 24 | Matilde, David (1511) | ID | 01542 |
| 9draft | 13 | Blech, Reinhard (1793) | Lost 0-2 | -131529 |
| 10draft | 18 | Comulada, Ricard (1623) | Won 2-1 | +191548 |
| 11draft | 18 | Rolla, Riccardo (1637) | Lost 0-2 | -161532 |
| 12draft | 10 | Da Silva, Romeu (1543) | Lost 0-2 | -181514 |
| 13draft | 29 | Barcelo Font, Jordi (1667) | Lost 1-2 | -151499 |
| 14draft | 28 | Folgado, Miguel Angel (1495) | Won 0-0 | +181517 |
| top | average opponent: 1602record: 5-5-1 | new rating: 1517 | ||