| Tournament | Round | Liz Marx | Doris Schwenn |
| 22.02.1998 Unley February (SA) | 2 | 471 | 327 |
| 21.03.1998 February (SA) | 3 | 303 | 304 |
| 29.03.1998 Unley (SA) | 2 | 471 | 327 |
| 21.03.1999 March (SA) | 1 | 365 | 376 |
| 22.08.1999 August (SA) | 2 | 348 | 475 |
| 24.10.1999 October (SA) | 4 | 407 | 387 |
| 20.08.2000 Unley (SA) | 1 | 295 | 389 |
| 09.02.2001 Unley February (SA) | 5 | 346 | 456 |
| 23.03.2001 South Australian Championships (SA) | 1 | 292 | 416 |
| 25.08.2001 August (SA) | 4 | 389 | 319 |
| 23.11.2001 November (SA) | 4 | 338 | 379 |
| 21.07.2002 Unley July (SA) | 5 | 334 | 394 |
| 25.05.2003 Northern Tournament (SA) | 3 | 412 | 388 |
| 20.07.2003 Hove (SA) | 2 | 328 | 441 |
| 02.11.2003 SA/Victoria Border Challenge Dimboola (VIC) | 9 | 247 | 441 |
| Head-to-head after 15 games | 5 | 10 | |
| Average score | 356.4 | 387.93 | |
| Spread: | -473 | 473 | |