| Tournament | Round | Dorrie Balgera | Anne Zion |
| 13.01.2002 WA Open (WA) | 3 | 330 | 312 |
| 31.10.2005 Coogee (WA) | 4 | 426 | 399 |
| 26.04.2009 Anzac Maximin (WA) | 6 | 341 | 378 |
| 17.05.2009 Melville (WA) | 2 | 347 | 470 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 361 | 389.75 | |
| Spread: | -115 | 115 | |