| Tournament | Round | Betty Irwin | Elisabeth Andrews |
| 19.02.2005 Wollongong (NSW) | 6 | 354 | 378 |
| 23.02.2006 Ulladulla Summer Games Thursday (NSW) | 2 | 347 | 312 |
| 22.02.2007 Ulladulla Summer Games Thursday (NSW) | 1 | 294 | 349 |
| Head-to-head after 3 games | 1 | 2 | |
| Average score | 331.66 | 346.33 | |
| Spread: | -44 | 44 | |