| Tournament | Round | Colleen McCormick | Carol Harrison |
| 12.07.1998 WA Masters (WA) | 2 | 444 | 350 |
| 02.08.1998 Bassendean (WA) | 1 | 400 | 306 |
| 13.06.1999 Advanced Intermediate Recreation (WA) | 2 | 416 | 437 |
| 19.09.1999 Spring Subiaco (WA) | 6 | 373 | 304 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 408.25 | 349.25 | |
| Spread: | 236 | -236 | |