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