| Tournament | Round | Nancy Sparling | Trevor Halsall |
| 05.04.1998 Victor Harbour (SA) | 2 | 369 | 400 |
| 13.02.2000 South Australian Championships (SA) | 14 | 423 | 364 |
| 18.11.2001 SA/Victoria Border Challenge (VIC) | 4 | 309 | 439 |
| 08.03.2003 South Australian Championships (SA) | 9 | 347 | 400 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 362 | 400.75 | |
| Spread: | -155 | 155 | |