| Tournament | Round | Khwanjai Thammaping | Trevor Halsall |
| 12.05.2008 Xiao-ting Box (VIC) | 2 | 334 | 409 |
| 21.04.2013 Matchplay (VIC) | 1 | 373 | 395 |
| 09.06.2014 Vic Champs (VIC) | 1 | 266 | 533 |
| 08.06.2015 Vic Championship (VIC) | 21 | 332 | 456 |
| 09.06.2019 VIC CHAMPIONSHIP (VIC) | 2 | 319 | 451 |
| 13.11.2021 VICTORIAN CHAMPS 21 (VIC) | 1 | 390 | 387 |
| Head-to-head after 6 games | 1 | 5 | |
| Average score | 335.66 | 438.5 | |
| Spread: | -617 | 617 | |