| Tournament | Round | Joan Ashton | Michelle Sturzebechr |
| 15.10.2005 October (SA) | 4 | 315 | 231 |
| 10.09.2006 September Tournament (SA) | 4 | 249 | 395 |
| 07.03.2009 South Australian Championships (SA) | 3 | 312 | 395 |
| Head-to-head after 3 games | 1 | 2 | |
| Average score | 292 | 340.33 | |
| Spread: | -145 | 145 | |