| Tournament | Round | Betty Billing | Mary Packenham |
| 23.08.1998 August (SA) | 6 | 297 | 319 |
| 12.09.1998 September (SA) | 2 | 346 | 337 |
| 18.04.1999 Victor Harbour (SA) | 3 | 299 | 370 |
| 21.11.1999 November (SA) | 4 | 314 | 306 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 314 | 333 | |
| Spread: | -76 | 76 | |