| Tournament | Round | Betty Mitchell | Trish Cearns |
| 22.02.1998 Unley February (SA) | 1 | 313 | 376 |
| 29.03.1998 Unley (SA) | 1 | 313 | 376 |
| 05.04.1998 Victor Harbour (SA) | 6 | 333 | 372 |
| 25.10.1998 October (SA) | 3 | 390 | 364 |
| 21.04.2003 Australian Championships (SA) | 7 | 290 | 459 |
| 17.04.2006 Australian Championships (QLD) | 3 | 351 | 315 |
| Head-to-head after 6 games | 2 | 4 | |
| Average score | 331.66 | 377 | |
| Spread: | -272 | 272 | |