| Tournament | Round | Mary Brown | Marlene Brown |
| 23.05.1999 May (SA) | 5 | 340 | 329 |
| 13.02.2000 South Australian Championships (SA) | 10 | 385 | 326 |
| 14.10.2001 October (SA) | 2 | 405 | 348 |
| 16.11.2002 November (SA) | 3 | 376 | 372 |
| 08.03.2003 South Australian Championships (SA) | 1 | 345 | 324 |
| 08.03.2003 South Australian Championships (SA) | 8 | 354 | 348 |
| 25.05.2003 Northern Tournament (SA) | 6 | 331 | 362 |
| 10.08.2003 Unley August (SA) | 4 | 329 | 337 |
| 18.06.2005 June (SA) | 4 | 304 | 409 |
| Head-to-head after 9 games | 6 | 3 | |
| Average score | 352.11 | 350.55 | |
| Spread: | 14 | -14 | |