| Tournament | Round | Ron Champness | Rowena Vnuk |
| 06.02.2011 SA February (SA) | 1 | 414 | 353 |
| 13.08.2011 August (SA) | 3 | 386 | 379 |
| 20.07.2013 SA July (SA) | 2 | 407 | 349 |
| 28.03.2015 SA April (SA) | 2 | 317 | 416 |
| 28.12.2015 Christmas Leftovers (SA) | 3 | 396 | 400 |
| 28.12.2016 Xmas Leftovers (SA) | 5 | 319 | 326 |
| Head-to-head after 6 games | 3 | 3 | |
| Average score | 373.16 | 370.5 | |
| Spread: | 16 | -16 | |