| Tournament | Round | Colleen McCormick | Trish Marchand |
| 20.09.1998 Advanced Intermediate Recreation (WA) | 1 | 404 | 281 |
| 17.01.1999 WA Open (WA) | 4 | 396 | 372 |
| 08.08.1999 Bassendean (WA) | 1 | 301 | 340 |
| 08.10.2000 Rockingham (WA) | 5 | 342 | 377 |
| 04.02.2001 Fremantle (WA) | 2 | 443 | 306 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 377.2 | 335.2 | |
| Spread: | 210 | -210 | |