| Tournament | Round | Gillian Briggs | Marlene Brown |
| 16.01.1999 January (SA) | 4 | 369 | 368 |
| 23.03.2001 South Australian Championships (SA) | 3 | 471 | 313 |
| 16.09.2001 September (SA) | 1 | 378 | 398 |
| 20.10.2002 October (SA) | 6 | 372 | 313 |
| 13.09.2003 Southern Tournament (SA) | 2 | 473 | 268 |
| 29.12.2004 Xmas Leftovers (SA) | 4 | 331 | 296 |
| 29.12.2004 Xmas Leftovers (SA) | 9 | 395 | 315 |
| Head-to-head after 7 games | 6 | 1 | |
| Average score | 398.42 | 324.42 | |
| Spread: | 518 | -518 | |