| Date | Tournament | State | Round | Bettina Tonkin | Joy Deans |
|---|---|---|---|---|---|
| 12/07/1998 | WA Masters | WA | 1 | 268 | 377 |
| 14/02/1999 | Fremantle | WA | 4 | 197 | 546 |
| 11/07/1999 | Western Australian Masters | WA | 10 | 403 | 298 |
| 19/09/1999 | Spring Subiaco | WA | 5 | 292 | 356 |
| 19/03/2000 | Bunbury | WA | 4 | 251 | 425 |
| 27/03/2000 | Nedlands | WA | 5 | 299 | 437 |
| 13/08/2000 | Western Australian Masters | WA | 8 | 433 | 328 |
| 08/04/2001 | Nedlands | WA | 3 | 354 | 375 |
| 02/09/2001 | Western Australian Masters | WA | 6 | 324 | 389 |
| 21/01/2007 | January Maximin | WA | 6 | 337 | 420 |
| 24/08/2008 | Rockingham | WA | 3 | 348 | 444 |
| 14/08/2011 | OPEN AUGUST | WA | 1 | 319 | 372 |
| 10/02/2013 | Fremantle | WA | 6 | 399 | 354 |
| 25/08/2013 | Rockingham | WA | 1 | 395 | 323 |
| 03/11/2013 | COOGEE | WA | 4 | 364 | 373 |
| 02/06/2014 | WA Championship | WA | 12 | 374 | 331 |
| 21/09/2014 | Rockingham | WA | 3 | 381 | 356 |
| 07/12/2014 | Dec OPEN | WA | 7 | 474 | 279 |
| 17/04/2016 | YOOF0416 | WA | 6 | 376 | 381 |
| 15/05/2016 | Melville | WA | 2 | 353 | 408 |
| 18/09/2016 | Yoof September | WA | 7 | 311 | 348 |
| Head-to-head after 21 games | 7 | 14 | |||
| Average score | 345.33 | 377.14 | |||
| Spread | -668 | 668 | |||