| Tournament | Round | Marilyn Mackie | Bonny Day |
| 18.10.1998 Rockingham (WA) | 3 | 343 | 379 |
| 17.10.1999 Rockingham (WA) | 1 | 318 | 319 |
| 20.10.2002 Rockingham (WA) | 2 | 394 | 318 |
| 29.08.2004 Yokine (WA) | 2 | 318 | 426 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 343.25 | 360.5 | |
| Spread: | -69 | 69 | |