| Tournament | Round | Maree Heynen | Vicki Underhill |
| 21.03.2004 Wyong (NSW) | 5 | 332 | 374 |
| 06.02.2005 Kempsey (NSW) | 11 | 310 | 413 |
| 02.10.2006 New South Wales Championships (NSW) | 16 | 280 | 334 |
| 15.07.2007 Winter Challenge (NSW) | 9 | 351 | 362 |
| Head-to-head after 4 games | 0 | 4 | |
| Average score | 318.25 | 370.75 | |
| Spread: | -210 | 210 | |