| Tournament | Round | Joan Ashton | Angela Brewer |
| 22.02.1998 Unley February (SA) | 1 | 335 | 272 |
| 29.03.1998 Unley (SA) | 1 | 335 | 272 |
| 23.08.1998 August (SA) | 2 | 297 | 292 |
| 22.08.1999 August (SA) | 1 | 309 | 341 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 319 | 294.25 | |
| Spread: | 99 | -99 | |