| Tournament | Round | Isabel Van Hoorn | Eilene Howarth |
| 30.08.1998 Knox (VIC) | 1 | 378 | 330 |
| 26.09.1999 Essendon (VIC) | 5 | 340 | 346 |
| 27.08.2000 Bentleigh (VIC) | 4 | 349 | 472 |
| 25.08.2002 Eastern Suburbs (VIC) | 1 | 379 | 403 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 361.5 | 387.75 | |
| Spread: | -105 | 105 | |