| Tournament | Round | Joan Ashton | Janet Prider |
| 23.08.1998 August (SA) | 5 | 280 | 386 |
| 22.11.1998 Xmas (SA) | 6 | 282 | 366 |
| 22.08.1999 August (SA) | 5 | 308 | 326 |
| 21.11.1999 November (SA) | 4 | 403 | 332 |
| 24.07.2000 July (SA) | 5 | 299 | 302 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 314.39 | 342.4 | |
| Spread: | -140 | 140 | |