Dorfman, James
Current rating: 1483
| Grand Prix New Jersey 2020 (THB limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 384 | Yurman, Michael (1488) | Won 2-0 | +191464 |
| 2sealed | 79 | Zhang, George (1541) | Won 2-0 | +191483 |
| 3sealed | 69 | Sundrani, Vikas (1587) | Won 2-0 | +201503 |
| 4sealed | 139 | Kaiser, Joseph (1656) | Lost 0-2 | -151488 |
| 5sealed | 226 | Gaynor, Jonah (1814) | Won 2-1 | +241512 |
| 6sealed | 86 | Ostroski, Michael (1869) | Lost 0-2 | -121500 |
| 7sealed | 141 | Benderly-Kraft, Sasha (1546) | Lost 1-2 | -171483 |
| top | average opponent: 1643record: 4-3 | new rating: 1483 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 170 | Douthwright, Stephen (1488) | Lost 1-2 | -171462 |
| 2legacy | 375 | Strong, Daniel (1476) | Won 2-0 | +181480 |
| 3legacy | 320 | Pruner, Matt (1500) | Lost 1-2 | -181462 |
| 4legacy | 554 | Labelle, Olivier (1507) | Lost 1-2 | -171445 |
| top | average opponent: 1493record: 1-3 | new rating: 1445 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 845 | Nadig, Nischal (1492) | Lost 1-2 | -181482 |
| 2modern | 1022 | McCurdy, Billy (1482) | Won 2-0 | +181500 |
| 3modern | 1136 | Abrams, Cory (1470) | Lost 0-2 | -191481 |
| 4modern | 1125 | Kanz, Chris (1482) | Won 2-0 | +181499 |
| 5modern | 1072 | Chang, James (1396) | Lost 1-2 | -201479 |
| top | average opponent: 1464record: 2-3 | new rating: 1479 | ||