| Tournament | Round | Betty Irwin | Pat Schuberg |
| 20.06.1998 Wollongong Marj Babb (NSW) | 5 | 388 | 363 |
| 17.06.2000 Wollongong Marj Babb (NSW) | 4 | 376 | 269 |
| 22.02.2007 Ulladulla Summer Games Thursday (NSW) | 3 | 355 | 375 |
| Head-to-head after 3 games | 2 | 1 | |
| Average score | 373 | 335.66 | |
| Spread: | 112 | -112 | |