Duffy, Jason
Current rating: 1630
Record: 11-5
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 393 | Deering, Matthew (1470) | Won 2-0 | +181500 |
| 2legacy | 235 | Mehta, Robin (1503) | Won 2-1 | +181518 |
| 3legacy | 216 | Smith, Matt (1457) | Won 2-1 | +171535 |
| 4legacy | 42 | Keefer, Matt (1633) | Won 2-1 | +201555 |
| 5legacy | 49 | Mavlian, Marcus (1591) | Won 2-1 | +181573 |
| 6legacy | 16 | Embry, Brian (1554) | Won 2-1 | +181591 |
| 7legacy | 13 | Allen, Dustin (1631) | Won 2-0 | +191610 |
| 8legacy | 8 | Huang, Bob (1813) | Won 2-0 | +211631 |
| 9legacy | 4 | Ulanov, Denis (2097) | Lost 1-2 | -101621 |
| 10legacy | 42 | Osowski, Richard (1565) | Won 2-1 | +171638 |
| 11legacy | 14 | Huang, Bob (1829) | Lost 0-2 | -141624 |
| 12legacy | 34 | Brown, Max (1861) | Won 2-1 | +221646 |
| 13legacy | 29 | Kerrigan, Andrew (1663) | Won 2-0 | +181664 |
| 14legacy | 73 | Naidu, Akash (1666) | Lost 1-2 | -181646 |
| 15legacy | 38 | Jones, Elliott (1774) | Lost 1-2 | -161630 |
| average opponent: 1674record: 11-4 | new rating: 1630 | |||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 100 | Winter, Randy (1500) | Lost 0-2 | -181482 |
| record: 0-1 | new rating: 1482 | |||