| Tournament | Round | Heather Lowden | Betty Mitchell |
| 22.08.1999 August (SA) | 1 | 300 | 317 |
| 13.02.2000 South Australian Championships (SA) | 2 | 357 | 314 |
| 19.03.2000 March (SA) | 1 | 371 | 316 |
| 24.04.2004 Unley April (SA) | 6 | 367 | 308 |
| 25.07.2004 Brighton (SA) | 7 | 383 | 372 |
| 22.05.2005 May (SA) | 1 | 406 | 319 |
| 17.07.2005 July (SA) | 3 | 346 | 288 |
| 11.03.2007 South Australian Championships (SA) | 4 | 439 | 354 |
| Head-to-head after 8 games | 7 | 1 | |
| Average score | 371.12 | 323.5 | |
| Spread: | 381 | -381 | |