| Tournament | Round | Joy Deans | Bettina Tonkin |
| 12.07.1998 WA Masters (WA) | 1 | 377 | 268 |
| 14.02.1999 Fremantle (WA) | 4 | 546 | 197 |
| 11.07.1999 Western Australian Masters (WA) | 10 | 298 | 403 |
| 19.09.1999 Spring Subiaco (WA) | 5 | 356 | 292 |
| 19.03.2000 Bunbury (WA) | 4 | 425 | 251 |
| 27.03.2000 Nedlands (WA) | 5 | 437 | 299 |
| 13.08.2000 Western Australian Masters (WA) | 8 | 328 | 433 |
| 08.04.2001 Nedlands (WA) | 3 | 375 | 354 |
| 02.09.2001 Western Australian Masters (WA) | 6 | 389 | 324 |
| 21.01.2007 January Maximin (WA) | 6 | 420 | 337 |
| 24.08.2008 Rockingham (WA) | 3 | 444 | 348 |
| 14.08.2011 OPEN AUGUST (WA) | 1 | 372 | 319 |
| 10.02.2013 Fremantle (WA) | 6 | 354 | 399 |
| 25.08.2013 Rockingham (WA) | 1 | 323 | 395 |
| 03.11.2013 COOGEE (WA) | 4 | 373 | 364 |
| 02.06.2014 WA Championship (WA) | 12 | 331 | 374 |
| 21.09.2014 Rockingham (WA) | 3 | 356 | 381 |
| 07.12.2014 Dec OPEN (WA) | 7 | 279 | 474 |
| 17.04.2016 YOOF0416 (WA) | 6 | 381 | 376 |
| 15.05.2016 Melville (WA) | 2 | 408 | 353 |
| 18.09.2016 Yoof September (WA) | 7 | 348 | 311 |
| Head-to-head after 21 games | 14 | 7 | |
| Average score | 377.14 | 345.33 | |
| Spread: | 668 | -668 | |