| Tournament | Round | Maureen Gill | Betty Mitchell |
| 07.03.2004 South Australian Championships (SA) | 1 | 326 | 310 |
| 17.04.2006 Australian Championships (QLD) | 10 | 376 | 276 |
| 05.04.2010 Aus Championship (SA) | 2 | 292 | 397 |
| Head-to-head after 3 games | 2 | 1 | |
| Average score | 331.33 | 327.66 | |
| Spread: | 11 | -11 | |