| Tournament | Round | Isabel Van Hoorn | Kris Howat |
| 19.03.2000 Prahran (VIC) | 6 | 327 | 424 |
| 20.05.2001 Dandenong (VIC) | 4 | 413 | 369 |
| 14.10.2001 Frankston (VIC) | 1 | 408 | 268 |
| 30.08.2009 Michael Chisholm (VIC) | 3 | 335 | 395 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 370.75 | 364 | |
| Spread: | 27 | -27 | |