| Tournament | Round | Mary McMahon | Wayne Stoyan |
| 05.12.1999 McKinnon (VIC) | 2 | 348 | 442 |
| 06.08.2000 Knox (VIC) | 3 | 442 | 289 |
| 10.11.2002 Geelong (VIC) | 1 | 386 | 389 |
| 21.03.2004 Bendigo (VIC) | 4 | 407 | 423 |
| 16.10.2005 Frankston (VIC) | 4 | 391 | 324 |
| 30.12.2012 Decathon (VIC) | 1 | 425 | 367 |
| 10.06.2013 QUEEN'S BIRTHDAY (VIC) | 2 | 366 | 388 |
| 29.09.2013 Esssendon (VIC) | 5 | 326 | 356 |
| 09.11.2014 Geelong (VIC) | 3 | 403 | 274 |
| 07.12.2014 FRANKSTON NORTH 2 (VIC) | 3 | 325 | 375 |
| 18.01.2015 AESTIVAL (VIC) | 7 | 442 | 259 |
| Head-to-head after 11 games | 5 | 6 | |
| Average score | 387.36 | 353.27 | |
| Spread: | 375 | -375 | |