| Date | Tournament | State | Round | Bettina Tonkin | Shirley Allen |
|---|---|---|---|---|---|
| 12/03/1995 | Advanced Intermediate Recreation | WA | 1 | 321 | 501 |
| 26/04/1998 | Nedlands | WA | 3 | 458 | 321 |
| 30/08/1998 | Yokine | WA | 3 | 329 | 326 |
| 17/01/1999 | WA Open | WA | 6 | 372 | 327 |
| 14/03/1999 | Bunbury | WA | 6 | 329 | 399 |
| 13/08/2000 | Western Australian Masters | WA | 15 | 373 | 348 |
| 10/09/2000 | Yokine | WA | 6 | 405 | 326 |
| 21/10/2001 | Rockingham | WA | 1 | 319 | 369 |
| 20/10/2002 | Rockingham | WA | 6 | 463 | 333 |
| 06/04/2003 | Nedlands | WA | 4 | 444 | 322 |
| 31/05/2003 | Western Australian Championships | WA | 1 | 435 | 342 |
| Head-to-head after 11 games | 8 | 3 | |||
| Average score | 386.18 | 355.82 | |||
| Spread | 334 | -334 | |||