| Tournament | Round | Alex Boiko | Carol Johnsen |
| 11.09.2016 MASTERS AND STATE CHAL (VIC) | 1 | 409 | 427 |
| 02.04.2018 2018 National Championship (ACT) | 23 | 370 | 365 |
| 08.09.2019 Australian Masters and State Team Challenge (ACT) | 10 | 443 | 377 |
| 03.04.2021 OZ CHAMPS (NSW) | 18 | 371 | 385 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 398.25 | 388.5 | |
| Spread: | 39 | -39 | |