| Tournament | Round | Isabel Van Hoorn | John Lynch |
| 25.10.1998 Frankston (VIC) | 3 | 359 | 338 |
| 06.08.2000 Knox (VIC) | 4 | 406 | 359 |
| 14.06.2004 Victorian Championships (VIC) | 3 | 394 | 340 |
| 29.12.2004 Decathon (VIC) | 3 | 289 | 391 |
| 15.05.2005 Dandenong (VIC) | 6 | 355 | 332 |
| 27.11.2005 McKinnon (VIC) | 4 | 313 | 390 |
| 28.12.2005 Decathon (VIC) | 7 | 288 | 403 |
| Head-to-head after 7 games | 4 | 3 | |
| Average score | 343.42 | 364.71 | |
| Spread: | -149 | 149 | |