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