| Tournament | Round | Trevor Halsall | Hanne Marks |
| 25.01.1998 City of Sydney International Masters (NSW) | 3 | 430 | 338 |
| 29.03.1998 Wyong (NSW) | 2 | 397 | 305 |
| 09.12.2001 ACT Championships (ACT) | 9 | 387 | 293 |
| 21.04.2003 Australian Championships (SA) | 1 | 388 | 496 |
| 25.01.2009 City of Sydney International Masters (NSW) | 3 | 335 | 479 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 387.4 | 382.2 | |
| Spread: | 26 | -26 | |