| Tournament | Round | Isabel Van Hoorn | David Lemish |
| 29.12.2004 Decathon (VIC) | 9 | 347 | 388 |
| 24.07.2005 Midwinter (VIC) | 2 | 376 | 336 |
| 30.11.2008 Bentleigh (VIC) | 2 | 398 | 241 |
| 18.04.2010 2010 WYSCFR1 (VIC) | 7 | 313 | 432 |
| 25.07.2010 Nunawading Tournament (VIC) | 2 | 387 | 471 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 364.2 | 373.6 | |
| Spread: | -47 | 47 | |