| Tournament | Round | Olga Visser | Natalie Tadday |
| 02.10.2006 New South Wales Championships (NSW) | 16 | 398 | 392 |
| 05.10.2009 NSW CHAMPIONSHIPS (NSW) | 11 | 382 | 308 |
| 25.04.2011 Aus Championship (ACT) | 16 | 465 | 312 |
| 03.10.2011 NSW Championships (NSW) | 5 | 433 | 307 |
| 03.10.2011 NSW Championships (NSW) | 17 | 307 | 368 |
| 16.06.2012 Wollongong WORDS Winter (NSW) | 5 | 375 | 384 |
| 07.07.2012 WINTER CHALLENGE (NSW) | 6 | 357 | 510 |
| 27.01.2014 City of Sydney International Masters (NSW) | 13 | 381 | 369 |
| 27.01.2014 City of Sydney International Masters (NSW) | 26 | 324 | 306 |
| 26.01.2019 AUSTRALIA DAY OPEN (NSW) | 3 | 501 | 344 |
| 16.04.2022 Australian Championship (QLD) | 17 | 488 | 350 |
| 03.11.2022 Seniors Championship (NSW) | 20 | 276 | 457 |
| 04.04.2026 AUS CHAMPS (ACT) | 4 | 380 | 362 |
| Head-to-head after 13 games | 9 | 4 | |
| Average score | 389.76 | 366.84 | |
| Spread: | 298 | -298 | |