| Tournament | Round | Phyllis Whitelaw | Isabel Van Hoorn |
| 08.02.1998 Camberwell (VIC) | 5 | 414 | 353 |
| 06.12.1998 Brighton (VIC) | 6 | 438 | 375 |
| 21.03.1999 Prahran (VIC) | 2 | 416 | 288 |
| 23.05.1999 Dandenong (VIC) | 5 | 446 | 329 |
| 18.07.1999 Nunawading (VIC) | 1 | 321 | 369 |
| 05.12.1999 McKinnon (VIC) | 5 | 350 | 401 |
| 23.01.2000 Aestival (VIC) | 6 | 332 | 447 |
| Head-to-head after 7 games | 4 | 3 | |
| Average score | 388.14 | 366 | |
| Spread: | 155 | -155 | |