| Tournament | Round | Vicki Underhill | Amanda Marginson |
| 27.08.2006 Queensland Championships (QLD) | 15 | 364 | 396 |
| 23.02.2008 Early Warm-Up (QLD) | 5 | 368 | 309 |
| 11.04.2009 AUST CHAMPIONSHIP (WA) | 23 | 242 | 434 |
| Head-to-head after 3 games | 1 | 2 | |
| Average score | 324.66 | 379.66 | |
| Spread: | -165 | 165 | |