| Tournament | Round | Bettina Tonkin | Dorrie Balgera |
| 11.07.1999 Western Australian Masters (WA) | 8 | 349 | 342 |
| 27.03.2000 Nedlands (WA) | 6 | 324 | 279 |
| 13.08.2000 Western Australian Masters (WA) | 5 | 298 | 470 |
| 10.08.2002 Western Australian Masters (WA) | 5 | 340 | 390 |
| 30.03.2003 Praxis (WA) | 3 | 394 | 371 |
| 06.02.2005 Fremantle (WA) | 1 | 367 | 375 |
| Head-to-head after 6 games | 3 | 3 | |
| Average score | 345.33 | 371.16 | |
| Spread: | -155 | 155 | |