| Tournament | Round | Michael Vnuk | Joan Colburt |
| 03.05.1998 Maelstrom (QLD) | 2 | 393 | 430 |
| 23.08.1998 Queensland Championships (QLD) | 14 | 413 | 407 |
| 31.10.1998 Redland Bay (QLD) | 4 | 335 | 391 |
| 15.11.1998 Oyez (QLD) | 7 | 341 | 447 |
| 02.05.1999 Maelstrom (QLD) | 3 | 382 | 345 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 372.8 | 404 | |
| Spread: | -156 | 156 | |