Hamm, Greg
Current rating: 1504
Record: 3-3-1
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 369 | Cahill, Christopher J (1500) | Won 2-0 | +181518 |
| 3sealed | 250 | Herr, Briana (1405) | Draw 1-1 | -21516 |
| 4sealed | 254 | Cicio, Joshua (1785) | Lost 1-2 | -131503 |
| 5sealed | 416 | Bernard-Lacaille, Gabriel (1502) | Won 2-0 | +181521 |
| 6sealed | 275 | Roman, Andrew (1605) | Lost 1-2 | -171504 |
| 7sealed | 393 | Bradley, Scott (1483) | Won 2-1 | +181522 |
| 8sealed | 282 | Criveau, Tristan (1527) | Lost 1-2 | -181504 |
| average opponent: 1544record: 3-3-1 | new rating: 1504 | |||