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