| Tournament | Round | Shirley Allen | Bettina Tonkin |
| 26.04.1998 Nedlands (WA) | 3 | 321 | 458 |
| 30.08.1998 Yokine (WA) | 3 | 326 | 329 |
| 17.01.1999 WA Open (WA) | 6 | 327 | 372 |
| 14.03.1999 Bunbury (WA) | 6 | 399 | 329 |
| 13.08.2000 Western Australian Masters (WA) | 15 | 348 | 373 |
| 10.09.2000 Yokine (WA) | 6 | 326 | 405 |
| 21.10.2001 Rockingham (WA) | 1 | 369 | 319 |
| 20.10.2002 Rockingham (WA) | 6 | 333 | 463 |
| 06.04.2003 Nedlands (WA) | 4 | 322 | 444 |
| 31.05.2003 Western Australian Championships (WA) | 1 | 342 | 435 |
| Head-to-head after 10 games | 2 | 8 | |
| Average score | 341.3 | 392.7 | |
| Spread: | -514 | 514 | |