Clementson, Matthew
Current rating: 1420
| Grand Prix Birmingham 2008 (Lorwyn block) | starting rating: 1432 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 70 | Duke, Michael (1500) | Lost 1-2 | -171415 |
| 2block | 149 | Brierley, Ryan (1480) | Lost 0-2 | -161399 |
| 3block | 224 | Bremner, Paul (1450) | Won 2-0 | +191418 |
| 4block | 191 | Pires, Wayne (1482) | Won 2-1 | +191437 |
| 5block | 134 | Visser, Leanne (1501) | Lost 1-2 | -171420 |
| top | average opponent: 1483record: 2-3 | new rating: 1420 | ||
| Grand Prix Toulouse 2006 (DIS limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 213 | Azevedo, Mario (1573) | Won 2-0 | +201484 |
| 2sealed | 11 | Roudier, Remi (1518) | Lost 0-2 | -181466 |
| 3sealed | 148 | Escobar, Yoan (1501) | Lost 0-2 | -171449 |
| 4sealed | 231 | Oulie, Pascal (1512) | Lost 0-2 | -171432 |
| top | average opponent: 1526record: 1-3 | new rating: 1432 | ||
| Grand Prix Birmingham 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 112 | Borg, Glenn (1566) | Lost 0-2 | -171483 |
| 2sealed | 213 | Wallis, Toby (1411) | Lost 0-2 | -191464 |
| 3sealed | 226 | Rushton, Daniel (1463) | Lost 1-2 | -181446 |
| 4sealed | 246 | Le Roi-Smith, Chris (1446) | Won 2-1 | +181464 |
| top | average opponent: 1471record: 1-3 | new rating: 1464 | ||