| Date | Tournament | State | Round | Dianne Davis | Olga Visser |
|---|---|---|---|---|---|
| 22/04/2000 | Australian Championships | QLD | 6 | 423 | 313 |
| 27/01/2002 | City of Sydney International Masters | NSW | 3 | 348 | 500 |
| 09/03/2002 | South Australian Championships | SA | 12 | 325 | 400 |
| 27/01/2003 | City of Sydney International Masters | NSW | 14 | 272 | 371 |
| 21/04/2003 | Australian Championships | SA | 11 | 385 | 289 |
| 25/04/2011 | Aus Championship | ACT | 10 | 435 | 303 |
| 01/04/2013 | Australian Championship | QLD | 20 | 353 | 430 |
| 06/04/2015 | Australian Championship | VIC | 8 | 303 | 447 |
| 25/08/2019 | WESPA Seniors 2019 | QLD | 10 | 451 | 404 |
| 25/08/2019 | WESPA Seniors 2019 | QLD | 19 | 346 | 394 |
| 02/04/2026 | Australian Womens Champ | ACT | 3 | 297 | 366 |
| Head-to-head after 11 games | 4 | 7 | |||
| Average score | 358.00 | 383.36 | |||
| Spread | -279 | 279 | |||