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