| Tournament | Round | Isabel Van Hoorn | Ann McBain |
| 06.12.1998 Brighton (VIC) | 5 | 351 | 405 |
| 18.07.1999 Nunawading (VIC) | 6 | 342 | 312 |
| 27.08.2000 Bentleigh (VIC) | 3 | 384 | 306 |
| 20.01.2002 Aestival (VIC) | 5 | 351 | 383 |
| 15.02.2004 Camberwell (VIC) | 1 | 314 | 393 |
| 13.02.2005 Camberwell (VIC) | 3 | 308 | 374 |
| Head-to-head after 6 games | 2 | 4 | |
| Average score | 341.66 | 362.16 | |
| Spread: | -123 | 123 | |