| Tournament | Round | Gillian Briggs | Eileen Seaborn |
| 10.08.2003 Unley August (SA) | 6 | 395 | 295 |
| 15.11.2003 Unley November (SA) | 5 | 407 | 366 |
| 08.02.2004 February Open (SA) | 4 | 382 | 354 |
| 11.03.2007 South Australian Championships (SA) | 3 | 341 | 403 |
| 11.03.2007 South Australian Championships (SA) | 14 | 299 | 352 |
| 03.02.2008 SA February Tournament (SA) | 1 | 442 | 343 |
| 09.03.2008 South Australian Championships (SA) | 9 | 363 | 350 |
| 07.03.2009 South Australian Championships (SA) | 3 | 312 | 367 |
| Head-to-head after 8 games | 5 | 3 | |
| Average score | 367.62 | 353.75 | |
| Spread: | 111 | -111 | |