| Tournament | Round | Regine Siedler | Helen Metaxas |
| 24.06.2007 Bellerive (TAS) | 2 | 382 | 289 |
| 25.08.2007 Newtown (TAS) | 6 | 334 | 385 |
| 28.10.2007 Tasmanian Championships (TAS) | 7 | 361 | 393 |
| 09.05.2009 Berriedale Open (TAS) | 7 | 346 | 448 |
| 20.06.2009 Bellerive (TAS) | 2 | 400 | 364 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 364.6 | 375.8 | |
| Spread: | -56 | 56 | |