| Tournament | Round | Betty Irwin | Edith Lowbeer |
| 17.02.2001 Wollongong WORDS February Frolic (NSW) | 4 | 421 | 311 |
| 27.05.2001 Ulladulla (NSW) | 9 | 345 | 354 |
| 24.11.2002 ACT Championships (ACT) | 1 | 283 | 333 |
| 22.05.2005 Ulladulla (NSW) | 10 | 339 | 364 |
| 17.06.2005 Wollongong Marj Babb (NSW) | 5 | 343 | 354 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 346.2 | 343.2 | |