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