| Tournament | Round | Erica Williams | Carol Johnston |
| 17.04.2006 Australian Championships (QLD) | 4 | 439 | 306 |
| 10.06.2007 Toowoomba (QLD) | 4 | 310 | 359 |
| 05.08.2007 Magnetic Island Sunday (QLD) | 5 | 374 | 285 |
| 04.05.2008 Queensland Championships (QLD) | 9 | 404 | 269 |
| 31.07.2011 Townsville Sunday (QLD) | 7 | 380 | 323 |
| 01.04.2013 Australian Championship (QLD) | 3 | 381 | 367 |
| Head-to-head after 6 games | 5 | 1 | |
| Average score | 381.33 | 318.16 | |
| Spread: | 379 | -379 | |