| Tournament | Round | Ron Champness | Betty Mitchell |
| 28.04.2007 SA April Tournament (SA) | 5 | 345 | 306 |
| 20.05.2007 May Tournament (SA) | 5 | 346 | 371 |
| 23.09.2007 September Tournament (SA) | 1 | 328 | 271 |
| 20.10.2007 SA October Tournament (SA) | 3 | 356 | 261 |
| 03.02.2008 SA February Tournament (SA) | 3 | 363 | 295 |
| 28.12.08 SA Leftovers (SA) | 3 | 395 | 315 |
| 25.07.2009 July (SA) | 3 | 333 | 361 |
| 19.06.2010 SA June (SA) | 4 | 275 | 389 |
| 16.04.2011 SA April (SA) | 2 | 398 | 310 |
| 22.05.2011 SA May (SA) | 3 | 369 | 296 |
| 13.08.2011 August (SA) | 2 | 357 | 340 |
| 17.09.2011 SA September (SA) | 5 | 248 | 342 |
| Head-to-head after 12 games | 8 | 4 | |
| Average score | 342.75 | 321.41 | |
| Spread: | 256 | -256 | |