| Tournament | Round | Margaret Andrews | Betty Irwin |
| 13.02.1999 Wollongong (NSW) | 2 | 285 | 321 |
| 21.05.1999 Ulladulla (NSW) | 1 | 406 | 286 |
| 21.02.2004 Wollongong (NSW) | 4 | 422 | 307 |
| 21.03.2004 Wyong (NSW) | 1 | 430 | 287 |
| 28.05.2006 Ulladulla Championship (NSW) | 4 | 418 | 308 |
| 16.02.2008 Wollongong WORDS Round Robin (NSW) | 5 | 449 | 349 |
| 18.05.2008 Ulladulla (NSW) | 8 | 380 | 346 |
| Head-to-head after 7 games | 6 | 1 | |
| Average score | 398.57 | 314.85 | |
| Spread: | 586 | -586 | |