| Tournament | Round | Vicki Underhill | Margaret Andrews |
| 23.07.2006 Winter Challenge (NSW) | 14 | 388 | 356 |
| 02.10.2006 New South Wales Championships (NSW) | 12 | 337 | 365 |
| 09.04.2007 Australian Championships (NSW) | 18 | 303 | 406 |
| Head-to-head after 3 games | 1 | 2 | |
| Average score | 342.66 | 375.66 | |
| Spread: | -99 | 99 | |