Whitfield, Kory J
Current rating: 1523
Record: 4-3
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 8 | Trottier, Charles (1535) | Won 2-0 | +191519 |
| 4sealed | 64 | Kaminski, Stephen (1539) | Won 2-1 | +181537 |
| 5sealed | 37 | Egolf, Marlon (1554) | Lost 0-2 | -181519 |
| 6sealed | 32 | Seitz, Scott (1553) | Won 2-0 | +191538 |
| 7sealed | 22 | Duterte, Daniel (1601) | Lost 0-2 | -171521 |
| 8sealed | 95 | Bindbeutel, Johnathan (1557) | Won 2-0 | +191540 |
| 9sealed | 24 | Wechsler, Simon (1590) | Lost 0-2 | -171523 |
| average opponent: 1561record: 4-3 | new rating: 1523 | |||