Mahaney, Jeff
Current rating: 1464
Record: 2-4
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 604 | Hill, Austin J (1500) | Won 2-1 | +181518 |
| 2legacy | 431 | Linn, Douglas (1490) | Lost 0-2 | -181500 |
| 3legacy | 620 | Elder, Ryan (1546) | Won 2-0 | +181518 |
| 4legacy | 551 | Christopher, Lou (1562) | Lost 1-2 | -171501 |
| 5legacy | 549 | Reynolds, Arthur W (1500) | Lost 1-2 | -181483 |
| 6legacy | 597 | Pierce, Chris (1432) | Lost 1-2 | -191464 |
| average opponent: 1505record: 2-4 | new rating: 1464 | |||