| Tournament | Round | Sandra Morgan | Bettina Tonkin |
| 12.07.1998 WA Masters (WA) | 17 | 314 | 279 |
| 13.08.2000 Western Australian Masters (WA) | 4 | 391 | 325 |
| 04.02.2001 Fremantle (WA) | 1 | 524 | 370 |
| 08.04.2001 Nedlands (WA) | 1 | 516 | 283 |
| Head-to-head after 4 games | 4 | 0 | |
| Average score | 436.25 | 314.25 | |
| Spread: | 488 | -488 | |