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