| Tournament | Round | Olga Visser | Barry Harridge |
| 16.04.2001 Australian Championships (VIC) | 18 | 411 | 401 |
| 21.04.2003 Australian Championships (SA) | 16 | 434 | 369 |
| 29.01.2006 City of Sydney International Masters (NSW) | 5 | 340 | 394 |
| 31.07.2010 TOWNSVILLE 2010 (QLD) | 5 | 401 | 521 |
| 06.08.2011 Magnetic Is Saturday (QLD) | 2 | 308 | 410 |
| 29.07.2012 Cairns (QLD) | 2 | 260 | 320 |
| 05.08.2012 Townsville Sunday (QLD) | 3 | 324 | 465 |
| 25.08.2019 WESPA Seniors 2019 (QLD) | 20 | 401 | 391 |
| 03.11.2022 Seniors Championship (NSW) | 14 | 329 | 324 |
| Head-to-head after 9 games | 4 | 5 | |
| Average score | 356.44 | 399.44 | |
| Spread: | -387 | 387 | |