| Tournament | Round | Val Stone | Betty Mitchell |
| 26.06.2004 Unley June (SA) | 1 | 298 | 394 |
| 18.07.2010 SA Pub July (SA) | 6 | 321 | 413 |
| 06.02.2011 SA February (SA) | 1 | 288 | 396 |
| 20.06.2015 SA June (SA) | 3 | 405 | 278 |
| 21.11.2015 SA November (SA) | 6 | 331 | 320 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 328.6 | 360.2 | |
| Spread: | -158 | 158 | |