| Tournament | Round | Gillian Briggs | Margaret Sella |
| 24.10.1999 October (SA) | 4 | 272 | 366 |
| 24.07.2000 July (SA) | 2 | 452 | 421 |
| 09.02.2001 Unley February (SA) | 2 | 441 | 479 |
| 15.07.2001 July (SA) | 2 | 392 | 377 |
| 09.03.2002 South Australian Championships (SA) | 14 | 351 | 334 |
| 25.05.2002 Northern Tournament (SA) | 4 | 342 | 403 |
| 12.01.2003 Open (SA) | 5 | 414 | 436 |
| 08.03.2003 South Australian Championships (SA) | 3 | 385 | 360 |
| 20.07.2003 Hove (SA) | 1 | 444 | 416 |
| 26.10.2003 Unley October (SA) | 6 | 357 | 447 |
| 15.11.2003 Unley November (SA) | 1 | 279 | 484 |
| 30.05.2004 Northern Tournament (SA) | 4 | 467 | 371 |
| 28.03.2005 Australian Championships (TAS) | 14 | 329 | 447 |
| 05.02.2006 Round Robin (SA) | 6 | 436 | 373 |
| 17.04.2006 Australian Championships (QLD) | 18 | 326 | 410 |
| 18.08.2007 August Tournament (SA) | 3 | 317 | 379 |
| Head-to-head after 16 games | 7 | 9 | |
| Average score | 375.25 | 406.43 | |
| Spread: | -499 | 499 | |