| Tournament | Round | Sybil Boyt | Nancy Sparling |
| 21.03.1998 February (SA) | 2 | 342 | 402 |
| 24.05.1998 South Australian Championships (SA) | 6 | 288 | 381 |
| 23.08.1998 August (SA) | 1 | 301 | 380 |
| 19.03.2000 March (SA) | 3 | 366 | 382 |
| Head-to-head after 4 games | 0 | 4 | |
| Average score | 324.25 | 386.25 | |