Foskey, William
Current rating: 1486
Record: 7-8
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 157 | Trejo, Robert (1500) | Won 2-0 | +181520 |
| 2sealed | 447 | Suarez, Christopher (1556) | Lost 0-2 | -171503 |
| 3sealed | 820 | Bennett, Xavier (1499) | Won 2-0 | +181521 |
| 4sealed | 247 | James, Derek (1612) | Won 2-0 | +201541 |
| 5sealed | 305 | Koontz, Tony (1536) | Lost 1-2 | -181523 |
| 6sealed | 290 | Chastine, Kevin (1386) | Won 2-1 | +151538 |
| 7sealed | 349 | Nguyen, Van (1535) | Lost 1-2 | -181520 |
| 8sealed | 341 | Aiken, Simone (1635) | Lost 0-2 | -161504 |
| 9sealed | 291 | Velarde, Alex (1473) | Lost 0-2 | -181486 |
| average opponent: 1526record: 4-5 | new rating: 1486 | |||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1560 | Agostas, Haley (1500) | Won 2-0 | +181518 |
| 2modern | 1432 | Godden, Joshua (1494) | Won 2-0 | +181536 |
| 3modern | 1316 | Wolf, Logan (1612) | Lost 0-2 | -171519 |
| 4modern | 1346 | Allen, Evan (1512) | Won 2-1 | +181537 |
| 5modern | 1227 | Zhang, Tian (1615) | Lost 0-2 | -171520 |
| 6modern | 1246 | Cranfill, Drew (1529) | Lost 0-2 | -181502 |
| average opponent: 1544record: 3-3 | new rating: 1502 | |||