| Tournament | Round | Derek McKenzie | Joy McGowan |
| 23.08.1998 Queensland Championships (QLD) | 14 | 396 | 360 |
| 02.05.1999 Maelstrom (QLD) | 5 | 405 | 347 |
| 11.07.1999 Coominya Winter (QLD) | 6 | 477 | 331 |
| 22.04.2000 Australian Championships (QLD) | 1 | 383 | 333 |
| 20.08.2000 Queensland Championships (QLD) | 15 | 439 | 334 |
| 25.08.2002 Queensland Championships (QLD) | 9 | 324 | 397 |
| Head-to-head after 6 games | 5 | 1 | |
| Average score | 404 | 350.33 | |
| Spread: | 322 | -322 | |