| Tournament | Round | John Barker | Julie Belle |
| 05.04.2010 Aus Championship (SA) | 7 | 382 | 347 |
| 01.04.2013 Australian Championship (QLD) | 12 | 399 | 361 |
| 06.04.2015 Australian Championship (VIC) | 22 | 362 | 273 |
| 28.03.2016 Australian Championship (SA) | 20 | 369 | 434 |
| 02.04.2018 2018 National Championship (ACT) | 21 | 480 | 326 |
| 22.04.2019 2019 Australian Championship (TAS) | 23 | 391 | 461 |
| Head-to-head after 6 games | 4 | 2 | |
| Average score | 397.16 | 367 | |
| Spread: | 181 | -181 | |