| Tournament | Round | Trevor Halsall | Garth van Vliet |
| 13.06.2011 Victorian Championship (VIC) | 9 | 461 | 427 |
| 10.06.2013 VIC CHAMPIONSHIP (VIC) | 5 | 500 | 367 |
| 27.01.2014 City of Sydney International Masters (NSW) | 15 | 404 | 431 |
| 20.07.2024 WINTER MASTERS (NSW) | 16 | 471 | 398 |
| 06.10.2025 NSW CHAMPIONSHIP 2025 (NSW) | 2 | 471 | 483 |
| 06.10.2025 NSW CHAMPIONSHIP 2025 (NSW) | 19 | 405 | 400 |
| Head-to-head after 6 games | 4 | 2 | |
| Average score | 452 | 417.66 | |
| Spread: | 206 | -206 | |