| Tournament | Round | Mary McMahon | Susan MacGillivray |
| 16.04.2001 Australian Championships (VIC) | 7 | 390 | 376 |
| 13.06.2005 Victorian Championships (VIC) | 13 | 305 | 417 |
| 28.03.2016 Australian Championship (SA) | 11 | 407 | 455 |
| 28.03.2016 Australian Championship (SA) | 15 | 355 | 372 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 364.25 | 405 | |
| Spread: | -163 | 163 | |