Harrison, John A
Current rating: 1482
Record: 1-2
| Grand Prix Dallas 2007 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 47 | Heflin, Matt (1500) | Lost 0-2 | -181482 |
| 2extended | 225 | Spencer, Adam (1481) | Lost 0-2 | -181464 |
| 3extended | 332 | Ives, Phil (1443) | Won 0-0 | +181482 |
| average opponent: 1475record: 1-2 | new rating: 1482 | |||