| Tournament | Round | Dorothy Kent | Marge Roberts |
| 30.05.2004 Melville (WA) | 1 | 399 | 300 |
| 23.10.2005 Rockingham (WA) | 7 | 306 | 349 |
| 04.06.2006 Western Australian Championships (WA) | 2 | 346 | 334 |
| 04.06.2007 Western Australian Championships C & D (WA) | 5 | 328 | 322 |
| 16.08.2009 ROCKINGHAM 2009 (WA) | 4 | 209 | 417 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 317.6 | 344.4 | |
| Spread: | -134 | 134 | |