Alonso, Guillermo
Current rating: 1515
Record: 6-6
| Grand Prix Madrid 2012 (DKA limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 673 | Trindade, Humberto (1480) | Won 2-0 | +191465 |
| 2sealed | 621 | Dr. Lenner, Aron (1564) | Won 2-1 | +191484 |
| 3sealed | 700 | Ecker, Florian (1541) | Lost 0-2 | -171467 |
| 4sealed | 743 | Polenne, Vincent (1478) | Won 2-0 | +191486 |
| 5sealed | 691 | Vega Ferrera, Oscar (1563) | Won 2-0 | +191505 |
| 6sealed | 632 | Bleys, Tony (1631) | Won 2-0 | +201525 |
| 7sealed | 656 | Tranoy, Havard (1520) | Lost 0-2 | -181507 |
| 8sealed | 656 | Kubiak, Jean Marie (1541) | Won 2-1 | +191526 |
| 9sealed | 636 | Borba, Rodrigo (1935) | Lost 0-2 | -111515 |
| average opponent: 1584record: 6-3 | new rating: 1515 | |||
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 130 | Alberola, Victor (1500) | Lost 0-2 | -181482 |
| 2sealed | 480 | Diez Nieto, Javier (1482) | Lost 0-2 | -181464 |
| 3sealed | 541 | Martin Angulo, Alvaro (1464) | Lost 0-2 | -181446 |
| average opponent: 1482record: 0-3 | new rating: 1446 | |||