Dee, Justin
Current rating: 1452
| Grand Prix Manchester 2012 (DKA limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 71 | Harper, Jonathan (1500) | Lost 1-2 | -181469 |
| 3sealed | 101 | Fitzpatrick, Robert (1500) | Lost 1-2 | -181451 |
| 4sealed | 206 | Colley, Dan (1479) | Won 2-0 | +191470 |
| 5sealed | 190 | Poyntz, Sam (1463) | Lost 0-2 | -181452 |
| top | average opponent: 1485record: 1-3 | new rating: 1452 | ||
| Grand Prix London 2011 (MBS limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 19 | Barlow, Bob (1481) | Won 2-1 | +181483 |
| 2sealed | 1 | Parker, Michael (1468) | Lost 1-2 | -181465 |
| 3sealed | 59 | Thorpe, Nicholas (1501) | Won 2-1 | +191484 |
| 4sealed | 58 | Perez, Daniel [ESP] (1501) | Won 2-0 | +181502 |
| 5sealed | 69 | Chaney, Matt (1632) | Lost 1-2 | -161486 |
| 6sealed | 97 | Harborne, Daniel (1481) | Lost 1-2 | -181468 |
| 7sealed | 79 | Peraldi, Antoine (1503) | Won 2-0 | +191487 |
| 8sealed | 60 | Tziazas, George (1469) | Won 2-1 | +171504 |
| 9sealed | 46 | Nemeth, Steven (1507) | Lost 0-2 | -171487 |
| top | average opponent: 1505record: 5-4 | new rating: 1487 | ||
| Grand Prix Birmingham 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 16 | Kodric, Mihael (1553) | Lost 0-2 | -171483 |
| 2block | 219 | Mcgrady, Rachel (1482) | Lost 1-2 | -181465 |
| 3block | 211 | Elie, Samuel (1466) | Lost 1-2 | -181447 |
| 4block | 267 | Van Hissenhoven, Thibaud (1448) | Won 2-0 | +181465 |
| 5block | 228 | Cervera, Natalia (1463) | Lost 1-2 | -181447 |
| 6block | 208 | Ford, Adam (1448) | Won 0-0 | +181465 |
| 7block | 168 | Geraghty, Tim (1462) | Won 2-1 | +181483 |
| 8block | 133 | Livingstone, Lee [ENG] (1485) | Lost 1-2 | -181465 |
| top | average opponent: 1476record: 3-5 | new rating: 1465 | ||