| Tournament | Round | Joy Deans | Marilyn Mackie |
| 31.05.1998 Melville (WA) | 4 | 485 | 275 |
| 12.07.1998 WA Masters (WA) | 2 | 285 | 381 |
| 11.07.1999 Western Australian Masters (WA) | 12 | 383 | 327 |
| 03.10.1999 Yokine (WA) | 5 | 376 | 372 |
| 13.02.2000 Fremantle (WA) | 3 | 295 | 359 |
| 08.10.2000 Rockingham (WA) | 5 | 379 | 306 |
| 08.04.2001 Nedlands (WA) | 6 | 344 | 401 |
| 12.01.2003 Open (WA) | 7 | 307 | 402 |
| 31.05.2003 Western Australian Championships (WA) | 10 | 379 | 326 |
| Head-to-head after 9 games | 5 | 4 | |
| Average score | 359.22 | 349.88 | |
| Spread: | 84 | -84 | |