| Tournament | Round | Henni Maat | Colleen Birch |
| 01.03.1998 Balmain (NSW) | 7 | 354 | 382 |
| 30.08.1998 Baulkham Hills (NSW) | 2 | 468 | 317 |
| 07.03.1999 Balmain (NSW) | 8 | 288 | 377 |
| 16.03.2003 Wyong (NSW) | 3 | 384 | 397 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 373.5 | 368.25 | |
| Spread: | 21 | -21 | |