| Tournament | Round | Mary McMahon | Ray Alford |
| 28.12.1998 Decathon (VIC) | 11 | 507 | 389 |
| 28.12.1999 Decathon (VIC) | 10 | 360 | 395 |
| 28.12.1999 Decathon (VIC) | 16 | 409 | 410 |
| 29.09.2002 Essendon (VIC) | 1 | 268 | 409 |
| 08.06.2003 Victorian Championships (VIC) | 5 | 286 | 483 |
| 14.06.2004 Victorian Championships (VIC) | 8 | 396 | 440 |
| 14.06.2004 Victorian Championships (VIC) | 19 | 316 | 444 |
| 18.03.2007 Langwarrin (VIC) | 4 | 486 | 368 |
| 09.10.2011 Mount Martha (VIC) | 6 | 377 | 481 |
| 28.12.2014 Decathon (VIC) | 7 | 399 | 499 |
| 28.03.2016 Australian Championship (SA) | 14 | 442 | 364 |
| Head-to-head after 11 games | 3 | 8 | |
| Average score | 386 | 425.63 | |
| Spread: | -436 | 436 | |