| Tournament | Round | Patricia Mitchell | Ivy Nicholls |
| 16.04.2001 Australian Championships (VIC) | 13 | 352 | 409 |
| 24.03.2008 Australian Championship (VIC) | 7 | 361 | 350 |
| 05.04.2010 Aus Championship (SA) | 11 | 367 | 366 |
| 05.04.2010 Aus Championship (SA) | 22 | 505 | 306 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 396.25 | 357.75 | |
| Spread: | 154 | -154 | |