| Date | Tournament | State | Round | Betty Irwin | Maree Heynen |
|---|---|---|---|---|---|
| 11/09/2005 | Hills Open | NSW | 6 | 313 | 298 |
| 28/05/2006 | Ulladulla Championship | NSW | 14 | 419 | 294 |
| 17/06/2006 | Wollongong Marj Babb | NSW | 7 | 411 | 301 |
| 14/06/2008 | Wollongong | NSW | 1 | 268 | 333 |
| 31/10/2009 | Nowra 2009 | NSW | 13 | 401 | 344 |
| 31/10/2009 | Nowra 2009 | NSW | 14 | 422 | 291 |
| 15/05/2011 | Ulladulla | NSW | 9 | 293 | 340 |
| 15/05/2011 | Ulladulla | NSW | 13 | 499 | 307 |
| Head-to-head after 8 games | 6 | 2 | |||
| Average score | 378.25 | 313.50 | |||
| Spread | 518 | -518 | |||