| Tournament | Round | Mary Mackie | Glenys Dettmann |
| 20.02.2011 Camberwell (VIC) | 7 | 339 | 370 |
| 11.08.2013 2013 AGM (VIC) | 3 | 293 | 324 |
| 24.11.2013 International Fundraiser #2 (VIC) | 3 | 349 | 336 |
| 08.12.2013 Bentleigh (VIC) | 1 | 351 | 310 |
| 13.04.2014 FRANKSTON NORTH APRIL (VIC) | 3 | 252 | 474 |
| 30.12.2017 DECATHON (VIC) | 4 | 291 | 362 |
| Head-to-head after 6 games | 2 | 4 | |
| Average score | 312.5 | 362.66 | |
| Spread: | -301 | 301 | |