| Tournament | Round | Brian Irwin | Heather Sorensen |
| 21.05.1999 Ulladulla (NSW) | 12 | 349 | 376 |
| 21.05.2000 Ulladulla (NSW) | 11 | 316 | 373 |
| 09.12.2001 ACT Championships (ACT) | 2 | 364 | 337 |
| 31.10.2009 Nowra 2009 (NSW) | 11 | 265 | 386 |
| 06.11.2010 Nowra (NSW) | 11 | 322 | 362 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 323.2 | 366.8 | |
| Spread: | -218 | 218 | |