| Tournament | Round | Arlene Williams | Margaret Bishop |
| 21.04.2014 Australian Championship (NSW) | 16 | 435 | 312 |
| 28.03.2016 Australian Championship (SA) | 14 | 302 | 517 |
| 19.04.2025 National Championship and Plate (SA) | 7 | 344 | 363 |
| 02.04.2026 Australian Womens Champ (ACT) | 3 | 370 | 408 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 362.75 | 400 | |
| Spread: | -149 | 149 | |