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