Castle, Tom
Current rating: 1446
Record: 7-11
| Grand Prix Liverpool 2015 (FRF limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 136 | Perkins, Chris S (1384) | Lost 1-2 | -201444 |
| 2sealed | 607 | Weston, Joseph (1482) | Won 2-0 | +191463 |
| 3sealed | 443 | Knizewski, Mateusz (1483) | Won 2-1 | +181481 |
| 4sealed | 472 | Stroilov, Yuri (1481) | Lost 1-2 | -181463 |
| 5sealed | 629 | Stammbach, Martin (1483) | Lost 1-2 | -171446 |
| top | average opponent: 1463record: 2-3 | new rating: 1446 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 71 | Bergen, Wesley (1569) | Won 2-1 | +191492 |
| 5sealed | 119 | Junkkari, Tatu (1565) | Won 2-0 | +201512 |
| 6sealed | 56 | Murray, Stephen (1843) | Lost 1-2 | -131499 |
| 7sealed | 122 | Ray, Stephane (1433) | Lost 0-2 | -191480 |
| 8sealed | 155 | Johnson, Daniel [ENG] (1555) | Lost 1-2 | -161464 |
| top | average opponent: 1593record: 2-3 | new rating: 1464 | ||
| Grand Prix London 2011 (MBS limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 247 | Grafensteiner, Daniel (1867) | Lost 0-2 | -111472 |
| 5sealed | 260 | Tomis, Jan (1533) | Won 2-0 | +191491 |
| 6sealed | 221 | Toth, Jakub (1483) | Lost 1-2 | -181473 |
| top | average opponent: 1628record: 1-2 | new rating: 1473 | ||
| Grand Prix Brighton 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 94 | Ritchie, James (1537) | Won 2-1 | +191519 |
| 2sealed | 18 | Anderson, Gareth (1458) | Lost 0-2 | -191500 |
| 3sealed | 143 | Azevedo, Mario (1570) | Won 2-0 | +191519 |
| 4sealed | 126 | Mullally, Eoin (1522) | Lost 0-2 | -181501 |
| 5sealed | 218 | Thorn, Martin (1501) | Lost 1-2 | -181483 |
| top | average opponent: 1518record: 2-3 | new rating: 1483 | ||