| Tournament | Round | Rob Marotta | Betty Mitchell |
| 05.11.2011 Seaford (SA) | 6 | 391 | 342 |
| 11.03.2012 SA Championship (SA) | 7 | 261 | 437 |
| 11.03.2012 SA Championship (SA) | 14 | 356 | 380 |
| 16.06.2012 SA June (SA) | 2 | 275 | 353 |
| 03.11.2012 SA November (SA) | 5 | 370 | 428 |
| 07.08.2016 Trans Tasman Side 2 (SA) | 1 | 349 | 275 |
| Head-to-head after 6 games | 2 | 4 | |
| Average score | 333.66 | 369.16 | |