| Tournament | Round | George Khamis | Colleen Birch |
| 01.10.2001 New South Wales Championships (NSW) | 3 | 377 | 410 |
| 28.07.2002 Newcastle (NSW) | 5 | 249 | 454 |
| 25.04.2011 Aus Championship (ACT) | 8 | 321 | 389 |
| 25.04.2011 Aus Championship (ACT) | 16 | 314 | 450 |
| 23.05.2021 EmpireBayMay (NSW) | 2 | 346 | 351 |
| Head-to-head after 5 games | 0 | 5 | |
| Average score | 321.39 | 410.8 | |
| Spread: | -447 | 447 | |