| Tournament | Round | Marilyn Mackie | Wynne Davidson |
| 05.12.1999 Marathon December (WA) | 7 | 353 | 343 |
| 13.01.2002 WA Open (WA) | 1 | 395 | 263 |
| 20.10.2002 Rockingham (WA) | 5 | 422 | 391 |
| 23.02.2003 Kwinana (WA) | 2 | 462 | 324 |
| Head-to-head after 4 games | 4 | 0 | |
| Average score | 408 | 330.25 | |
| Spread: | 311 | -311 | |