| Tournament | Round | Carol Johnston | Olga Visser |
| 08.06.2008 Woomba Wound Wobins (QLD) | 7 | 318 | 442 |
| 28.08.2011 Qld Championships (QLD) | 6 | 215 | 460 |
| 14.06.2015 Palmwoods (QLD) | 1 | 387 | 329 |
| 14.10.2017 Bremer Waters 2 (QLD) | 1 | 300 | 480 |
| 21.07.2019 QAH July (QLD) | 1 | 255 | 395 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 295 | 421.2 | |
| Spread: | -631 | 631 | |