| Tournament | Round | Mary McMahon | Paul Richards |
| 12.06.2000 Victorian Championships (VIC) | 19 | 369 | 384 |
| 12.06.2000 Victorian Championships (VIC) | 21 | 201 | 200 |
| 09.06.2001 Victorian Championships (VIC) | 10 | 268 | 401 |
| 14.06.2004 Victorian Championships (VIC) | 2 | 360 | 392 |
| 14.06.2004 Victorian Championships (VIC) | 10 | 345 | 340 |
| 17.04.2006 Australian Championships (QLD) | 6 | 424 | 355 |
| 28.12.2006 Decathon (VIC) | 6 | 369 | 330 |
| 11.06.2007 Victorian Championships (VIC) | 19 | 372 | 375 |
| 29.12.2009 DECATHON (VIC) | 5 | 394 | 408 |
| 28.12.2014 Decathon (VIC) | 9 | 383 | 362 |
| Head-to-head after 10 games | 5 | 5 | |
| Average score | 348.5 | 354.7 | |
| Spread: | -62 | 62 | |