| Tournament | Round | Mary Bone | Joan Ashton |
| 08.03.2003 South Australian Championships (SA) | 1 | 324 | 314 |
| 12.03.2006 South Australian Championships (SA) | 1 | 350 | 286 |
| 28.12.2006 Christmas Leftovers AM (SA) | 2 | 291 | 434 |
| 28.12.2006 Christmas Leftovers PM (SA) | 2 | 338 | 419 |
| 09.03.2008 South Australian Championships (SA) | 1 | 335 | 247 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 327.6 | 340 | |
| Spread: | -62 | 62 | |