| Tournament | Round | Karen Richards | Ivy Nicholls |
| 15.04.1998 Australian Championships (TAS) | 18 | 300 | 380 |
| 27.10.2001 Tasmanian Championships (TAS) | 9 | 496 | 256 |
| 21.04.2003 Australian Championships (SA) | 6 | 446 | 374 |
| 31.10.2004 Tasmanian Championships (TAS) | 4 | 372 | 291 |
| 06.03.2005 Beaconsfield (TAS) | 8 | 371 | 412 |
| 05.03.2006 Beaconsfield (TAS) | 10 | 465 | 265 |
| Head-to-head after 6 games | 4 | 2 | |
| Average score | 408.33 | 329.66 | |
| Spread: | 472 | -472 | |