| Tournament | Round | Mary Bone | Rhonda Brown |
| 12.01.2003 Open (SA) | 4 | 401 | 379 |
| 25.07.2004 Brighton (SA) | 7 | 302 | 355 |
| 18.06.2005 June (SA) | 2 | 323 | 321 |
| 20.11.2005 November (SA) | 6 | 369 | 170 |
| 05.02.2006 Round Robin (SA) | 1 | 325 | 377 |
| 30.04.2006 April Tournament (SA) | 4 | 290 | 404 |
| Head-to-head after 6 games | 3 | 3 | |
| Average score | 335 | 334.33 | |
| Spread: | 4 | -4 | |