| Tournament | Round | Betty Billing | Janet Prider |
| 23.08.1998 August (SA) | 3 | 316 | 307 |
| 22.11.1998 Xmas (SA) | 4 | 327 | 316 |
| 14.02.1999 South Australian Championships (SA) | 6 | 279 | 300 |
| 24.07.2000 July (SA) | 3 | 304 | 323 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 306.5 | 311.5 | |
| Spread: | -20 | 20 | |