| Tournament | Round | Colleen McCormick | Matthew Dowling |
| 31.05.1998 Melville (WA) | 5 | 378 | 457 |
| 11.07.1999 Western Australian Masters (WA) | 6 | 364 | 306 |
| 13.02.2000 Fremantle (WA) | 5 | 405 | 332 |
| 08.07.2000 Bassendean (WA) | 4 | 344 | 377 |
| 21.04.2002 Nedlands (WA) | 4 | 312 | 468 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 360.6 | 388 | |
| Spread: | -137 | 137 | |