| Tournament | Round | Bettina Tonkin | Sandra Crompton |
| 13.06.1999 Advanced Intermediate Recreation (WA) | 2 | 306 | 362 |
| 19.09.1999 Spring Subiaco (WA) | 1 | 356 | 339 |
| 13.08.2000 Western Australian Masters (WA) | 3 | 387 | 326 |
| 11.01.2004 January Maximin (WA) | 2 | 400 | 271 |
| 18.05.2014 MELVILLE (WA) | 2 | 424 | 298 |
| 07.12.2014 Dec OPEN (WA) | 2 | 407 | 326 |
| Head-to-head after 6 games | 5 | 1 | |
| Average score | 380 | 320.33 | |
| Spread: | 358 | -358 | |