| Tournament | Round | Harry Malcolm | Isabel Van Hoorn |
| 15.11.1998 Geelong (VIC) | 6 | 348 | 365 |
| 22.08.1999 Bentleigh (VIC) | 4 | 399 | 389 |
| 20.05.2001 Dandenong (VIC) | 2 | 431 | 445 |
| 29.12.2001 Decathon (VIC) | 3 | 492 | 283 |
| 23.06.2002 Nunawading (VIC) | 1 | 373 | 325 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 408.6 | 361.4 | |
| Spread: | 236 | -236 | |