| Tournament | Round | Vicki Underhill | Betty Foreman |
| 02.10.2006 New South Wales Championships (NSW) | 6 | 330 | 394 |
| 02.10.2006 New South Wales Championships (NSW) | 20 | 433 | 332 |
| 01.10.2007 New South Wales Champs (NSW) | 11 | 386 | 403 |
| 01.10.2007 New South Wales Champs (NSW) | 21 | 320 | 421 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 367.25 | 387.5 | |
| Spread: | -81 | 81 | |