| Date | Tournament | State | Round | Betty Irwin | Karmel Patterson |
|---|---|---|---|---|---|
| 20/02/2007 | Ulladulla Summer Games Tuesday | NSW | 3 | 339 | 399 |
| 21/02/2007 | Ulladulla Summer Games Wednesday | NSW | 3 | 279 | 419 |
| 18/09/2010 | Ulladulla 2010 | NSW | 9 | 447 | 338 |
| 20/05/2012 | Ulladulla | NSW | 8 | 330 | 407 |
| Head-to-head after 4 games | 1 | 3 | |||
| Average score | 348.75 | 390.75 | |||
| Spread | -168 | 168 | |||