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