| Tournament | Round | Karen Richards | Colleen McCormick |
| 31.05.1998 Melville (WA) | 2 | 307 | 346 |
| 02.08.1998 Bassendean (WA) | 2 | 366 | 320 |
| 30.08.1998 Yokine (WA) | 5 | 400 | 313 |
| 20.09.1998 Advanced Intermediate Recreation (WA) | 2 | 441 | 274 |
| 30.05.1999 Melville (WA) | 4 | 341 | 420 |
| 21.04.2002 Nedlands (WA) | 1 | 456 | 366 |
| 22.06.2003 Manning (WA) | 2 | 439 | 326 |
| 29.02.2004 Kwinana (WA) | 4 | 390 | 310 |
| 19.06.2004 Western Australian Championships (WA) | 18 | 525 | 346 |
| 11.04.2009 AUST CHAMPIONSHIP (WA) | 24 | 417 | 435 |
| 08.11.2015 Open Sunday (WA) | 1 | 504 | 299 |
| Head-to-head after 11 games | 8 | 3 | |
| Average score | 416.9 | 341.36 | |
| Spread: | 831 | -831 | |