| Tournament | Round | George Khamis | Wayne Willis |
| 01.10.2007 New South Wales Champs (NSW) | 7 | 456 | 378 |
| 29.01.2012 CITY OF SYDNEY MASTERS (NSW) | 16 | 446 | 297 |
| 21.04.2014 Australian Championship (NSW) | 16 | 327 | 401 |
| 25.08.2019 WESPA Seniors 2019 (QLD) | 9 | 482 | 310 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 427.75 | 346.5 | |
| Spread: | 325 | -325 | |