Birdwell, Dave O
Current rating: 1465
Record: 2-4
| Grand Prix Dallas 2007 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 110 | Hamill, Ryan (1500) | Won 2-0 | +181518 |
| 2extended | 49 | Runyon, John (1500) | Lost 0-2 | -181500 |
| 3extended | 263 | Zoellner, Clayton (1500) | Won 0-0 | +181518 |
| 4extended | 205 | Heminway, Curtis (1518) | Lost 0-2 | -181500 |
| 5extended | 204 | Harrelson, Eric W (1504) | Lost 1-2 | -181482 |
| 6extended | 219 | Chodan, Ross (1528) | Lost 0-2 | -171465 |
| average opponent: 1509record: 2-4 | new rating: 1465 | |||