| Date | Tournament | State | Round | Isabel Van Hoorn | Mary McMahon |
|---|---|---|---|---|---|
| 10/08/1997 | Jolly Roger | VIC | 5 | 345 | 379 |
| 07/12/1997 | McKinnon | VIC | 6 | 377 | 254 |
| 30/08/1998 | Knox | VIC | 4 | 392 | 301 |
| 21/03/1999 | Prahran | VIC | 1 | 311 | 390 |
| 05/12/1999 | McKinnon | VIC | 1 | 328 | 352 |
| 15/10/2000 | Frankston | VIC | 6 | 311 | 404 |
| 30/12/2000 | Decathon | VIC | 4 | 393 | 337 |
| 21/01/2001 | Aestival | VIC | 6 | 431 | 416 |
| 26/08/2001 | Eastern Suburbs | VIC | 5 | 367 | 388 |
| 04/04/2004 | Langwarrin | VIC | 3 | 401 | 323 |
| Head-to-head after 10 games | 5 | 5 | |||
| Average score | 365.60 | 354.40 | |||
| Spread | 112 | -112 | |||