| Tournament | Round | Colleen McCormick | Gwen Kirkham |
| 31.05.1998 Melville (WA) | 6 | 338 | 416 |
| 02.08.1998 Bassendean (WA) | 3 | 362 | 423 |
| 14.02.1999 Fremantle (WA) | 4 | 409 | 351 |
| 13.06.1999 Advanced Intermediate Recreation (WA) | 5 | 372 | 303 |
| 11.07.1999 Western Australian Masters (WA) | 16 | 427 | 349 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 381.6 | 368.4 | |
| Spread: | 66 | -66 | |