| Tournament | Round | Mary McMahon | Ian Newton |
| 07.02.1999 Ballarat (VIC) | 6 | 370 | 402 |
| 23.01.2000 Aestival (VIC) | 4 | 430 | 308 |
| 15.10.2000 Frankston (VIC) | 3 | 415 | 241 |
| 23.06.2002 Nunawading (VIC) | 6 | 341 | 448 |
| 18.05.2003 Dandenong (VIC) | 3 | 343 | 353 |
| 08.06.2003 Victorian Championships (VIC) | 10 | 372 | 294 |
| 27.07.2003 Bentleigh (VIC) | 6 | 379 | 360 |
| 20.03.2005 Langwarrin (VIC) | 1 | 310 | 507 |
| 15.01.2006 Aestival (VIC) | 4 | 449 | 343 |
| 24.07.2011 Nunawading (VIC) | 6 | 408 | 342 |
| Head-to-head after 10 games | 6 | 4 | |
| Average score | 381.7 | 359.8 | |