| Tournament | Round | Patti Ashwin | Margaret Bishop |
| 17.04.2006 Australian Championships (QLD) | 6 | 298 | 476 |
| 01.04.2013 Australian Championship (QLD) | 1 | 408 | 364 |
| 06.04.2015 Australian Championship (VIC) | 18 | 426 | 329 |
| 17.04.2017 National Championship (WA) | 4 | 436 | 357 |
| 17.04.2017 National Championship (WA) | 23 | 420 | 329 |
| 22.04.2019 2019 Australian Championship (TAS) | 1 | 286 | 462 |
| 17.08.2025 Queensland Championship (QLD) | 12 | 336 | 362 |
| Head-to-head after 7 games | 4 | 3 | |
| Average score | 372.85 | 382.71 | |
| Spread: | -69 | 69 | |