| Tournament | Round | Mary Mcmahon | Patricia Mitchell |
| 08.03.1998 Wangaratta (VIC) | 1 | 430 | 434 |
| 08.06.1998 Victorian Championships (VIC) | 10 | 486 | 355 |
| 21.02.1999 Camberwell (VIC) | 5 | 356 | 414 |
| 18.07.1999 Nunawading (VIC) | 1 | 410 | 283 |
| 23.01.2000 Aestival (VIC) | 3 | 372 | 421 |
| 19.03.2000 Prahran (VIC) | 5 | 344 | 351 |
| 09.06.2001 Victorian Championships (VIC) | 3 | 395 | 405 |
| 10.06.2002 Victorian Championships (VIC) | 7 | 595 | 289 |
| 22.06.2003 Nunawading (VIC) | 3 | 425 | 378 |
| 20.03.2005 Langwarrin (VIC) | 5 | 343 | 371 |
| 07.01.2006 Mind Sports (VIC) | 3 | 363 | 416 |
| 12.02.2006 Camberwell (VIC) | 4 | 379 | 357 |
| 10.09.2006 Trans Tasman Fundraiser (VIC) | 4 | 456 | 333 |
| 18.02.2007 Camberwell (VIC) | 1 | 544 | 292 |
| 07.06.2008 VIC CHAMPS (VIC) | 1 | 363 | 517 |
| 10.07.2011 WYSC Fundraiser 1 (VIC) | 6 | 357 | 357 |
| 11.09.2011 Clota Fundraiser (VIC) | 5 | 466 | 273 |
| 11.06.2012 QUEEN'S BIRTHDAY (VIC) | 2 | 410 | 423 |
| 20.01.2013 BIL ROSE AESTIVAL (VIC) | 7 | 320 | 481 |
| 07.07.2013 World Youth Fundraiser (VIC) | 3 | 392 | 360 |
| 10.11.2013 Geelong (VIC) | 5 | 418 | 380 |
| 24.11.2013 International Fundraiser #2 (VIC) | 6 | 454 | 324 |
| Head-to-head after 22 games | 11.5 | 10.5 | |
| Average score | 412.63 | 373.36 | |
| Spread: | 864 | -864 | |