| Date | Tournament | State | Round | Wynne Davidson | Bettina Tonkin |
|---|---|---|---|---|---|
| 29/09/2002 | Manjimup | WA | 5 | 364 | 370 |
| 10/03/2002 | Bunbury | WA | 2 | 362 | 286 |
| 10/11/2002 | Coogee | WA | 1 | 411 | 367 |
| 02/02/2003 | Fremantle | WA | 2 | 443 | 331 |
| 23/02/2003 | Kwinana | WA | 4 | 344 | 363 |
| 31/05/2003 | Western Australian Championships | WA | 9 | 278 | 452 |
| 28/09/2003 | Manjimup | WA | 4 | 340 | 299 |
| 11/01/2004 | January Maximin | WA | 4 | 300 | 360 |
| 09/03/2008 | Bunbury | WA | 1 | 289 | 375 |
| 06/04/2008 | MAXIMIN APRIL | WA | 3 | 315 | 434 |
| 05/10/2008 | SPRING MAXIMIN 2008 | WA | 3 | 309 | 395 |
| Head-to-head after 11 games | 4 | 7 | |||
| Average score | 341.36 | 366.55 | |||
| Spread | -277 | 277 | |||