| Date | Tournament | State | Round | Colleen McCormick | Dianne Ward |
|---|---|---|---|---|---|
| 12/07/1998 | WA Masters | WA | 7 | 443 | 390 |
| 17/01/1999 | WA Open | WA | 5 | 385 | 347 |
| 13/08/2000 | Western Australian Masters | WA | 10 | 362 | 398 |
| 02/09/2001 | Western Australian Masters | WA | 3 | 370 | 425 |
| 11/11/2001 | Coogee | WA | 6 | 341 | 369 |
| 26/05/2002 | Melville | WA | 5 | 266 | 553 |
| 10/08/2002 | Western Australian Masters | WA | 1 | 354 | 357 |
| 22/10/2006 | Rockingham | WA | 2 | 381 | 422 |
| 04/06/2007 | Western Australian Championships A & B | WA | 12 | 297 | 492 |
| 09/03/2008 | Bunbury | WA | 1 | 334 | 454 |
| 13/07/2008 | Bassendean 2008 | WA | 1 | 402 | 383 |
| 31/05/2009 | WA CHAMPIONSHIP | WA | 18 | 394 | 380 |
| 03/06/2013 | WA Championship | WA | 1 | 351 | 485 |
| 22/03/2015 | MARCH OPEN | WA | 6 | 410 | 346 |
| 17/03/2019 | Joy Deans Memorial | WA | 7 | 413 | 296 |
| Head-to-head after 15 games | 6 | 9 | |||
| Average score | 366.87 | 406.47 | |||
| Spread | -594 | 594 | |||