Thorn, Martin
Current rating: 1462
| Grand Prix London 2013 (GTC limited) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 554 | Thomas, Paul [ENG] (1446) | Won 2-1 | +191449 |
| 2sealed | 45 | Plagge, Julian (1624) | Lost 1-2 | -151434 |
| 3sealed | 434 | Zimmermann, Raoul (1691) | Lost 1-2 | -141420 |
| 4sealed | 843 | Lastad, Trond Age (1489) | Won 2-0 | +201440 |
| 5sealed | 537 | Miley, Daniel (1501) | Won 2-0 | +191459 |
| 6sealed | 568 | Brusch, Felix (1573) | Won 2-1 | +201479 |
| 7sealed | 347 | Bladh, Sebastian (1524) | Lost 1-2 | -171462 |
| top | average opponent: 1550record: 4-3 | new rating: 1462 | ||
| Grand Prix London 2011 (MBS limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 225 | Pemberton, Andrew J (1500) | Lost 0-2 | -181487 |
| 2sealed | 350 | Zelgert, Kai (1437) | Lost 1-2 | -191468 |
| 3sealed | 336 | Pype, Tristan (1385) | Lost 0-2 | -201448 |
| 4sealed | 364 | Russel, Andrew (1446) | Lost 0-2 | -181430 |
| top | average opponent: 1442record: 0-4 | new rating: 1430 | ||
| Grand Prix Brighton 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 107 | Barnes, Gordon J (1500) | Won 2-1 | +181518 |
| 2sealed | 173 | Boyhan, Aaron (1518) | Lost 0-2 | -181500 |
| 3sealed | 237 | Baker, Thomas D (1501) | Lost 1-2 | -181482 |
| 4sealed | 300 | de Graat, Julien (1541) | Won 2-0 | +191501 |
| 5sealed | 218 | Castle, Tom (1501) | Won 2-1 | +181519 |
| 6sealed | 161 | Perez Fresnedo, Javier (1733) | Lost 1-2 | -141505 |
| top | average opponent: 1549record: 3-3 | new rating: 1505 | ||