| Tournament | Round | Erica Williams | Karen Richards |
| 23.08.1998 Queensland Championships (QLD) | 15 | 279 | 397 |
| 06.05.2001 Auran Open (QLD) | 7 | 266 | 490 |
| 06.10.2001 Mindbenders Open (QLD) | 4 | 410 | 433 |
| 27.08.2006 Queensland Championships (QLD) | 13 | 312 | 437 |
| 30.07.2011 Townsville Saturday (QLD) | 8 | 320 | 468 |
| 02.08.2011 Cairns (QLD) | 2 | 479 | 343 |
| Head-to-head after 6 games | 1 | 5 | |
| Average score | 344.33 | 428 | |
| Spread: | -502 | 502 | |