| Tournament | Round | Mary McMahon | Carol Mascitti |
| 26.06.2011 WSC Fundraiser (VIC) | 7 | 387 | 339 |
| 24.11.2013 International Fundraiser #2 (VIC) | 7 | 458 | 286 |
| 29.12.2013 Decathon (VIC) | 4 | 348 | 426 |
| Head-to-head after 3 games | 2 | 1 | |
| Average score | 397.66 | 350.33 | |
| Spread: | 142 | -142 | |