| Tournament | Round | Mary Slater | Betty Mitchell |
| 13.02.2000 South Australian Championships (SA) | 1 | 294 | 362 |
| 09.02.2001 Unley February (SA) | 4 | 280 | 371 |
| 27.05.2001 May (SA) | 1 | 363 | 315 |
| 15.07.2001 July (SA) | 3 | 348 | 394 |
| 14.10.2001 October (SA) | 1 | 332 | 348 |
| 23.11.2001 November (SA) | 1 | 269 | 382 |
| 16.11.2002 November (SA) | 2 | 289 | 340 |
| 07.03.2004 South Australian Championships (SA) | 11 | 326 | 337 |
| 26.06.2004 Unley June (SA) | 6 | 321 | 325 |
| 13.03.2005 South Australian Championships (SA) | 1 | 295 | 282 |
| Head-to-head after 10 games | 2 | 8 | |
| Average score | 311.7 | 345.6 | |