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