| Tournament | Round | Trevor Halsall | David Vanzyl |
| 28.03.2016 Australian Championship (SA) | 5 | 436 | 382 |
| 02.04.2018 2018 National Championship (ACT) | 22 | 397 | 317 |
| 28.01.2019 City Of Sydney International Masters (NSW) | 6 | 331 | 460 |
| 08.09.2019 Australian Masters and State Team Challenge (ACT) | 7 | 358 | 447 |
| 08.03.2020 SA Championship (SA) | 6 | 448 | 416 |
| 08.03.2020 SA Championship (SA) | 11 | 406 | 366 |
| 08.04.2023 AUS CHAMPS (VIC) | 19 | 311 | 427 |
| 07.09.2024 AUSTRALIAN MASTERS (SA) | 19 | 407 | 403 |
| 07.09.2025 AUSTRALIAN MASTERS AND STATE CHALLENGE (VIC) | 2 | 449 | 314 |
| Head-to-head after 9 games | 6 | 3 | |
| Average score | 393.66 | 392.44 | |
| Spread: | 11 | -11 | |