| Tournament | Round | Mary McMahon | Val Hardiman |
| 15.11.1998 Geelong (VIC) | 1 | 351 | 456 |
| 26.09.1999 Essendon (VIC) | 6 | 359 | 359 |
| 24.06.2001 Nunawading (VIC) | 1 | 295 | 401 |
| 30.09.2001 Essendon (VIC) | 5 | 343 | 469 |
| 24.02.2002 Camberwell (VIC) | 1 | 414 | 319 |
| 08.06.2003 Victorian Championships (VIC) | 14 | 410 | 389 |
| 22.06.2003 Nunawading (VIC) | 6 | 359 | 381 |
| 19.10.2003 Frankston (VIC) | 6 | 321 | 375 |
| 04.07.2004 Nunawading (VIC) | 6 | 579 | 265 |
| 25.07.2004 Bentleigh (VIC) | 5 | 359 | 410 |
| 20.03.2005 Langwarrin (VIC) | 2 | 409 | 376 |
| 24.07.2005 Midwinter (VIC) | 5 | 284 | 361 |
| 25.09.2005 Essendon (VIC) | 2 | 341 | 385 |
| 10.12.2006 McKinnon 2006 (VIC) | 3 | 367 | 352 |
| 11.11.2007 Geelong (VIC) | 1 | 407 | 299 |
| 15.02.2009 Camberwell (VIC) | 1 | 469 | 408 |
| 03.05.2009 WSC FUND RAISER MAY (VIC) | 7 | 329 | 442 |
| 26.07.2009 Nunawading (VIC) | 2 | 353 | 392 |
| 30.08.2009 Michael Chisholm (VIC) | 4 | 362 | 389 |
| 17.01.2010 AESTIVAL FESTIVAL (VIC) | 2 | 434 | 409 |
| 14.02.2010 Camberwell (VIC) | 3 | 337 | 479 |
| 11.07.2010 Youth Fundraiser 2 (VIC) | 4 | 350 | 347 |
| 10.07.2011 WYSC Fundraiser 1 (VIC) | 3 | 346 | 351 |
| Head-to-head after 23 games | 9.5 | 13.5 | |
| Average score | 372.95 | 383.21 | |
| Spread: | -236 | 236 | |