| Tournament | Round | Karen Richards | Arlene Williams |
| 13.12.2014 Bundanoon (NSW) | 1 | 527 | 315 |
| 14.11.2020 ACT Championships (ACT) | 2 | 328 | 406 |
| 12.11.2022 ACT Championship (ACT) | 13 | 445 | 380 |
| 10.05.2025 ACT May Tournament (ACT) | 1 | 482 | 373 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 445.5 | 368.5 | |
| Spread: | 308 | -308 | |