| Date | Tournament | State | Round | Joan Buchanan | Betty Irwin |
|---|---|---|---|---|---|
| 05/12/1999 | ACT Christmas Capers | ACT | 1 | 357 | 290 |
| 21/05/2000 | Ulladulla | NSW | 13 | 381 | 361 |
| 24/11/2002 | ACT Championships | ACT | 10 | 340 | 286 |
| 22/05/2005 | Ulladulla | NSW | 8 | 387 | 330 |
| 17/06/2005 | Wollongong Marj Babb | NSW | 2 | 354 | 378 |
| 21/02/2006 | Ulladulla SUmmer Games Tuesday | NSW | 2 | 348 | 340 |
| 28/05/2006 | Ulladulla Championship | NSW | 1 | 402 | 328 |
| Head-to-head after 7 games | 6 | 1 | |||
| Average score | 367.00 | 330.43 | |||
| Spread | 256 | -256 | |||