| Tournament | Round | Isabel Van Hoorn | Dianne Gibson |
| 16.05.2004 Dandenong (VIC) | 1 | 341 | 466 |
| 28.08.2004 Winter's End (VIC) | 4 | 327 | 334 |
| 29.12.2004 Decathon (VIC) | 2 | 348 | 378 |
| 27.11.2005 McKinnon (VIC) | 6 | 419 | 352 |
| 05.11.2006 Geelong (VIC) | 6 | 391 | 404 |
| 28.12.2006 Decathon (VIC) | 8 | 391 | 339 |
| Head-to-head after 6 games | 2 | 4 | |
| Average score | 369.5 | 378.83 | |
| Spread: | -56 | 56 | |