| Tournament | Round | Merle Young | Betty Irwin |
| 20.06.1998 Wollongong Marj Babb (NSW) | 3 | 463 | 313 |
| 13.02.1999 Wollongong (NSW) | 4 | 409 | 321 |
| 17.06.2000 Wollongong Marj Babb (NSW) | 7 | 255 | 397 |
| 23.02.2002 Wollongong (NSW) | 4 | 340 | 316 |
| 26.05.2002 Ulladulla (NSW) | 5 | 342 | 397 |
| 22.02.2003 Wollongong (NSW) | 6 | 361 | 314 |
| 15.05.2003 Ulladulla (NSW) | 6 | 322 | 374 |
| Head-to-head after 7 games | 4 | 3 | |
| Average score | 356 | 347.42 | |
| Spread: | 60 | -60 | |