| Date | Tournament | State | Round | Mary McMahon | John Barker |
|---|---|---|---|---|---|
| 14/06/1999 | Victorian Championships | VIC | 11 | 434 | 324 |
| 28/12/1999 | Decathon | VIC | 6 | 325 | 429 |
| 08/06/2003 | Victorian Championships | VIC | 3 | 395 | 290 |
| 09/06/2014 | Vic Champs | VIC | 23 | 344 | 483 |
| Head-to-head after 4 games | 2 | 2 | |||
| Average score | 374.50 | 381.50 | |||
| Spread | -28 | 28 | |||