| Tournament | Round | Derek McKenzie | Trevor Halsall |
| 25.01.1998 City of Sydney International Masters (NSW) | 8 | 380 | 408 |
| 21.01.1999 City of Sydney Masters (NSW) | 5 | 246 | 415 |
| 04.10.1999 New South Wales Championships (NSW) | 12 | 504 | 276 |
| 22.04.2000 Australian Championships (QLD) | 13 | 389 | 373 |
| 16.04.2001 Australian Championships (VIC) | 16 | 414 | 478 |
| 27.01.2002 City of Sydney International Masters (NSW) | 18 | 405 | 420 |
| 24.03.2008 Australian Championship (VIC) | 13 | 419 | 395 |
| 04.05.2008 Queensland Championships (QLD) | 15 | 433 | 373 |
| 08.04.2023 AUS CHAMPS (VIC) | 23 | 312 | 455 |
| Head-to-head after 9 games | 4 | 5 | |
| Average score | 389.11 | 399.22 | |
| Spread: | -91 | 91 | |