| Tournament | Round | Colleen Birch | Arlene Williams |
| 21.04.2014 Australian Championship (NSW) | 7 | 456 | 411 |
| 14.11.2020 ACT Championships (ACT) | 8 | 413 | 309 |
| 14.11.2020 ACT Championships (ACT) | 16 | 408 | 374 |
| Head-to-head after 3 games | 3 | 0 | |
| Average score | 425.66 | 364.66 | |
| Spread: | 183 | -183 | |