| Tournament | Round | Mary McMahon | Simon Foskett |
| 28.12.1998 Decathon (VIC) | 4 | 406 | 372 |
| 20.01.2002 Aestival (VIC) | 3 | 329 | 369 |
| 25.08.2002 Eastern Suburbs (VIC) | 5 | 358 | 359 |
| 14.06.2004 Victorian Championships (VIC) | 6 | 446 | 360 |
| 14.06.2004 Victorian Championships (VIC) | 16 | 349 | 424 |
| 14.06.2004 Victorian Championships (VIC) | 24 | 374 | 362 |
| 10.10.2004 Frankston (VIC) | 1 | 381 | 400 |
| 16.01.2005 Aestival (VIC) | 2 | 402 | 373 |
| 20.05.2007DANDENONG (VIC) | 3 | 412 | 456 |
| 25.05.2008 Dandenong (VIC) | 4 | 272 | 404 |
| Head-to-head after 10 games | 4 | 6 | |
| Average score | 372.9 | 387.9 | |
| Spread: | -150 | 150 | |