Jamison, Bill
Current rating: 1417
Record: 5-10-1
| Grand Prix Atlanta 2014 (JOU limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 421 | Bigerton, Nicholas (1500) | Won 2-0 | +191450 |
| 2sealed | 343 | Fielman, Josh (1518) | Lost 0-2 | -171433 |
| 3sealed | 505 | Estomba, Charles (1498) | Draw 1-1 | +11434 |
| 4sealed | 636 | Burke, John-Paul (1450) | Lost 1-2 | -171417 |
| top | average opponent: 1491record: 1-2-1 | new rating: 1417 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 20 | Foshe, Chris (1487) | Lost 1-2 | -181466 |
| 2modern | 430 | Whiteman, Alex (1481) | Lost 1-2 | -181448 |
| 3modern | 627 | Payne, Zachary (1462) | Lost 0-2 | -171431 |
| top | average opponent: 1477record: 0-3 | new rating: 1431 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 351 | Battle, Daniel L (1501) | Lost 0-2 | -181464 |
| 2sealed | 481 | Buttaro, Stephen (1482) | Won 2-0 | +181482 |
| 3sealed | 210 | Terrell, Micah J (1500) | Won 2-0 | +191501 |
| 4sealed | 299 | Dixon, Thomas (1574) | Lost 1-2 | -171484 |
| top | average opponent: 1514record: 2-2 | new rating: 1484 | ||
| Grand Prix Nashville 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 87 | Shaffer, Isaac S (1500) | Lost 0-2 | -181482 |
| 2sealed | 279 | Winn, Isaac I (1482) | Won 2-1 | +181500 |
| 3sealed | 284 | Lanceford, Graham (1482) | Lost 0-2 | -181482 |
| 4sealed | 393 | Hausen, Swing (1481) | Won 2-0 | +181500 |
| 5sealed | 381 | Stephen, Mike (1500) | Lost 0-2 | -181482 |
| top | average opponent: 1489record: 2-3 | new rating: 1482 | ||