Coyne, Derrick A
Current rating: 1429
Record: 2-6
| Grand Prix Chicago 2009 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 185 | Tomes, Aaron (1500) | Won 2-1 | +181518 |
| 2legacy | 150 | Zvonek, Aaron R (1517) | Lost 0-2 | -181500 |
| 3legacy | 439 | Thompson, Adam (1472) | Won 2-0 | +171517 |
| 4legacy | 259 | Bonneville, Martin (1554) | Lost 0-2 | -171500 |
| 5legacy | 341 | Tanner, Kasey (1487) | Lost 0-2 | -181482 |
| 6legacy | 394 | Rupert, Chris (1482) | Lost 0-2 | -181464 |
| 7legacy | 311 | Mannas, Robin (1514) | Lost 1-2 | -171447 |
| 8legacy | 245 | Bomar, Andrew (1444) | Lost 0-2 | -181429 |
| average opponent: 1496record: 2-6 | new rating: 1429 | |||