| Tournament | Round | Gillian Briggs | Liz Marx |
| 22.08.1999 August (SA) | 4 | 300 | 381 |
| 09.03.2002 South Australian Championships (SA) | 6 | 321 | 414 |
| 10.02.2002 February (SA) | 2 | 316 | 358 |
| 16.11.2002 November (SA) | 2 | 303 | 428 |
| 08.03.2003 South Australian Championships (SA) | 7 | 281 | 325 |
| 28.03.2005 Australian Championships (TAS) | 3 | 411 | 314 |
| Head-to-head after 6 games | 1 | 5 | |
| Average score | 322 | 370 | |
| Spread: | -288 | 288 | |