| Tournament | Round | Margaret Schlenk | Joyce Brooks |
| 24.05.1998 South Australian Championships (SA) | 2 | 267 | 290 |
| 22.08.1999 August (SA) | 6 | 311 | 374 |
| 24.10.1999 October (SA) | 2 | 362 | 359 |
| 24.07.2000 July (SA) | 6 | 367 | 311 |
| 22.11.2000 Unley November (SA) | 5 | 286 | 349 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 318.6 | 336.6 | |
| Spread: | -90 | 90 | |