| Date | Tournament | State | Round | Marge Roberts | Colleen McCormick |
|---|---|---|---|---|---|
| 12/08/2001 | Yokine | WA | 4 | 368 | 357 |
| 01/06/2008 | WA Championships | WA | 7 | 326 | 469 |
| 01/06/2008 | WA Championships | WA | 13 | 317 | 376 |
| 02/10/2011 | October Open | WA | 1 | 293 | 492 |
| 01/06/2015 | WA Champs | WA | 18 | 307 | 405 |
| 08/10/2017 | Rockingham | WA | 6 | 374 | 405 |
| 18/03/2018 | Joy Deans Memorial | WA | 4 | 389 | 372 |
| 19/05/2019 | Melville | WA | 1 | 364 | 288 |
| Head-to-head after 8 games | 3 | 5 | |||
| Average score | 342.25 | 395.50 | |||
| Spread | -426 | 426 | |||