| Date | Tournament | State | Round | Betty Irwin | Daphne Bezuidenhout |
|---|---|---|---|---|---|
| 13/02/1999 | Wollongong | NSW | 7 | 324 | 463 |
| 21/05/1999 | Ulladulla | NSW | 5 | 304 | 365 |
| 05/12/1999 | ACT Christmas Capers | ACT | 6 | 377 | 336 |
| 26/05/2002 | Ulladulla | NSW | 6 | 289 | 325 |
| 24/11/2002 | ACT Championships | ACT | 4 | 393 | 344 |
| 22/02/2003 | Wollongong | NSW | 2 | 261 | 401 |
| 19/02/2005 | Wollongong | NSW | 7 | 421 | 315 |
| 22/05/2005 | Ulladulla | NSW | 4 | 348 | 344 |
| 23/02/2006 | Ulladulla Summer Games Thursday | NSW | 7 | 428 | 286 |
| 28/05/2006 | Ulladulla Championship | NSW | 9 | 400 | 318 |
| 17/06/2006 | Wollongong Marj Babb | NSW | 6 | 317 | 398 |
| Head-to-head after 11 games | 6 | 5 | |||
| Average score | 351.09 | 354.09 | |||
| Spread | -33 | 33 | |||