| Tournament | Round | Sandra Morgan | Marilyn Mackie |
| 12.07.1998 WA Masters (WA) | 13 | 502 | 316 |
| 30.08.1998 Yokine (WA) | 1 | 290 | 382 |
| 11.07.1999 Western Australian Masters (WA) | 5 | 376 | 350 |
| 04.02.2001 Fremantle (WA) | 4 | 340 | 342 |
| 10.03.2002 Bunbury (WA) | 1 | 471 | 276 |
| 30.03.2003 Praxis (WA) | 7 | 388 | 307 |
| Head-to-head after 6 games | 4 | 2 | |
| Average score | 394.5 | 328.83 | |
| Spread: | 394 | -394 | |