| Tournament | Round | Patricia Mitchell | Marilyn Smith |
| 05.04.1999 Australian Championships (NSW) | 5 | 388 | 496 |
| 08.06.2003 Victorian Championships (VIC) | 15 | 391 | 418 |
| 09.04.2012 Australian Championship (TAS) | 15 | 342 | 395 |
| Head-to-head after 3 games | 0 | 3 | |
| Average score | 373.66 | 436.33 | |
| Spread: | -188 | 188 | |