| Tournament | Round | Isabel Van Hoorn | Joy Smith |
| 23.05.1999 Dandenong (VIC) | 6 | 362 | 412 |
| 19.03.2000 Prahran (VIC) | 2 | 373 | 466 |
| 29.10.2000 Teams Event (VIC) | 2 | 345 | 332 |
| 30.12.2000 Decathon (VIC) | 5 | 369 | 386 |
| 04.11.2001 Geelong (VIC) | 2 | 345 | 367 |
| 29.12.2001 Decathon (VIC) | 2 | 402 | 318 |
| 27.04.2002 Western Suburbs (VIC) | 2 | 347 | 303 |
| 30.03.2003 Langwarrin (VIC) | 6 | 431 | 355 |
| 08.06.2003 Victorian Championships (VIC) | 10 | 286 | 312 |
| 29.12.2004 Decathon (VIC) | 1 | 382 | 337 |
| 29.05.2005 Two Rack (VIC) | 3 | 442 | 290 |
| 24.07.2005 Midwinter (VIC) | 4 | 347 | 439 |
| 27.11.2005 McKinnon (VIC) | 1 | 364 | 279 |
| 22.04.2007 Melbourne Team Challenge (VIC) | 4 | 379 | 274 |
| Head-to-head after 14 games | 8 | 6 | |
| Average score | 369.57 | 347.85 | |
| Spread: | 304 | -304 | |