| Tournament | Round | Betty Billing | Peggy Harvey |
| 24.05.1998 South Australian Championships (SA) | 4 | 322 | 313 |
| 19.07.1998 July (SA) | 6 | 313 | 365 |
| 23.08.1998 August (SA) | 2 | 349 | 313 |
| 22.11.1998 Xmas (SA) | 3 | 276 | 397 |
| 16.01.1999 January (SA) | 2 | 332 | 329 |
| 14.02.1999 South Australian Championships (SA) | 2 | 290 | 309 |
| 24.10.1999 October (SA) | 2 | 300 | 373 |
| 21.11.1999 November (SA) | 2 | 326 | 286 |
| Head-to-head after 8 games | 4 | 4 | |
| Average score | 313.5 | 335.62 | |
| Spread: | -177 | 177 | |