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