| Tournament | Round | Nancy Sparling | Sybil Boyt |
| 21.03.1998 February (SA) | 2 | 402 | 342 |
| 24.05.1998 South Australian Championships (SA) | 6 | 381 | 288 |
| 23.08.1998 August (SA) | 1 | 380 | 301 |
| 19.03.2000 March (SA) | 3 | 382 | 366 |
| Head-to-head after 4 games | 4 | 0 | |
| Average score | 386.25 | 324.25 | |
| Spread: | 248 | -248 | |