| Tournament | Round | Trevor Halsall | Michael Vnuk |
| 21.01.1999 City of Sydney Masters (NSW) | 9 | 425 | 241 |
| 05.04.1999 Australian Championships (NSW) | 7 | 425 | 364 |
| 16.04.2001 Australian Championships (VIC) | 5 | 420 | 333 |
| 06.03.2021 SA Champs (SA) | 2 | 333 | 466 |
| 08.03.2025 SA Champs (SA) | 4 | 414 | 331 |
| Head-to-head after 5 games | 4 | 1 | |
| Average score | 403.4 | 347 | |
| Spread: | 282 | -282 | |