| Date | Tournament | State | Round | Mary McMahon | Joyce McCombe |
|---|---|---|---|---|---|
| 03/11/1996 | Geelong | VIC | 4 | 316 | 292 |
| 19/01/1997 | Aestival Twilight | VIC | 3 | 370 | 342 |
| 07/08/2004 | Victorian Country Championships | VIC | 1 | 396 | 396 |
| 06/08/2006 | Victorian Country Championships | VIC | 6 | 370 | 287 |
| Head-to-head after 4 games | 3.5 | 0.5 | |||
| Average score | 363.00 | 329.25 | |||
| Spread | 135 | -135 | |||