| Date | Tournament | State | Round | Mary McMahon | Don Marshall |
|---|---|---|---|---|---|
| 27/09/1998 | Essendon | VIC | 6 | 341 | 408 |
| 07/03/1999 | Bendigo | VIC | 1 | 513 | 247 |
| 23/09/2000 | Essendon | VIC | 1 | 378 | 343 |
| 29/01/2005 | Ballarat | VIC | 6 | 430 | 368 |
| 06/11/2005 | Geelong | VIC | 2 | 464 | 297 |
| 07/06/2008 | VIC CHAMPS | VIC | 6 | 352 | 362 |
| 06/09/2008 | Ballarat | VIC | 4 | 393 | 373 |
| 05/09/2009 | Ballarat Spring | VIC | 2 | 430 | 320 |
| 07/08/2010 | Country Daylesford | VIC | 3 | 357 | 361 |
| 27/08/2011 | Ballarat Winter | VIC | 5 | 392 | 359 |
| 11/11/2012 | Geelong | VIC | 5 | 378 | 392 |
| 09/11/2014 | Geelong | VIC | 6 | 398 | 338 |
| Head-to-head after 12 games | 8 | 4 | |||
| Average score | 402.17 | 347.33 | |||
| Spread | 658 | -658 | |||