| Tournament | Round | Gillian Renwick | Isabel Van Hoorn |
| 22.06.2003 Nunawading (VIC) | 1 | 435 | 282 |
| 10.12.2006 McKinnon 2006 (VIC) | 6 | 343 | 362 |
| 30.12.2007 DECATHON (VIC) | 5 | 326 | 426 |
| 25.07.2010 Nunawading Tournament (VIC) | 1 | 417 | 343 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 380.25 | 353.25 | |
| Spread: | 108 | -108 | |