| Tournament | Round | Shirley Allen | Colleen McCormick |
| 26.04.1998 Nedlands (WA) | 6 | 329 | 375 |
| 02.08.1998 Bassendean (WA) | 5 | 343 | 415 |
| 17.01.1999 WA Open (WA) | 2 | 398 | 312 |
| 25.04.1999 Nedlands (WA) | 4 | 351 | 461 |
| 13.08.2000 Western Australian Masters (WA) | 13 | 441 | 413 |
| 08.10.2000 Rockingham (WA) | 2 | 376 | 342 |
| Head-to-head after 6 games | 3 | 3 | |
| Average score | 373 | 386.33 | |
| Spread: | -80 | 80 | |