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