| Date | Tournament | State | Round | Betty Irwin | Jean Balmer |
|---|---|---|---|---|---|
| 21/05/2000 | Ulladulla | NSW | 11 | 364 | 336 |
| 27/05/2001 | Ulladulla | NSW | 11 | 330 | 398 |
| 23/02/2002 | Wollongong | NSW | 1 | 328 | 409 |
| 21/02/2004 | Wollongong | NSW | 7 | 309 | 421 |
| 21/02/2006 | Ulladulla SUmmer Games Tuesday | NSW | 1 | 355 | 397 |
| 23/02/2006 | Ulladulla Summer Games Thursday | NSW | 8 | 381 | 383 |
| Head-to-head after 6 games | 1 | 5 | |||
| Average score | 344.50 | 390.67 | |||
| Spread | -277 | 277 | |||