Koontz, Tony
Current rating: 1518
Record: 4-3
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 439 | Kroeze, Cristopher (1500) | Won 2-0 | +181518 |
| 2sealed | 403 | McGouirk, Bill (1480) | Lost 0-2 | -191499 |
| 3sealed | 636 | Kincaid, James (1500) | Won 2-0 | +181517 |
| 4sealed | 478 | DeAngelo, John (1577) | Won 2-0 | +191536 |
| 5sealed | 305 | Foskey, William (1541) | Won 2-1 | +181554 |
| 6sealed | 257 | Smith, Jeremy (1399) | Lost 1-2 | -201534 |
| 7sealed | 317 | Fei, Xinyu (1687) | Lost 0-2 | -161518 |
| average opponent: 1526record: 4-3 | new rating: 1518 | |||