Lees, Jason
Current rating: 1447
Record: 2-5
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 145 | Chin, Richard (1500) | Lost 1-2 | -181482 |
| 2sealed | 232 | Corrigan, Griffin (1485) | Lost 1-2 | -181464 |
| 3sealed | 327 | McClure, Tom j (1463) | Lost 0-2 | -181446 |
| 4sealed | 328 | Ellis, Kevin (1446) | Won 2-0 | +181464 |
| 5sealed | 277 | Piela, Ben (1467) | Won 2-1 | +181482 |
| 6sealed | 218 | Clark, Michael N (1511) | Lost 1-2 | -171465 |
| 7sealed | 174 | Livitz, Dimitri G (1463) | Lost 1-2 | -181447 |
| average opponent: 1476record: 2-5 | new rating: 1447 | |||