| Tournament | Round | Betty Mitchell | Merle Sharrock |
| 13.03.2005 South Australian Championships (SA) | 2 | 350 | 435 |
| 21.08.2005 August (SA) | 1 | 269 | 378 |
| 17.06.2006 SA June Tournament (SA) | 3 | 267 | 436 |
| 19.11.2006 November (SA) | 1 | 330 | 371 |
| 04.02.2007 SA February Tournament (SA) | 3 | 292 | 403 |
| 28.04.2007 SA April Tournament (SA) | 2 | 356 | 309 |
| 20.05.2007 May Tournament (SA) | 2 | 493 | 308 |
| 18.08.2007 August Tournament (SA) | 6 | 352 | 423 |
| 23.09.2007 September Tournament (SA) | 2 | 306 | 354 |
| Head-to-head after 9 games | 2 | 7 | |
| Average score | 335 | 379.66 | |
| Spread: | -402 | 402 | |