| Tournament | Round | Henni Maat | Trish Windhurst |
| 01.03.1998 Balmain (NSW) | 5 | 340 | 392 |
| 12.12.1998 North Shore (NSW) | 4 | 382 | 366 |
| 17.01.1999 Baulkham Hills (NSW) | 4 | 327 | 337 |
| 17.04.1999 Central Coast - Wyong (NSW) | 6 | 395 | 365 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 361 | 365 | |
| Spread: | -16 | 16 | |