| Tournament | Round | Gillian Briggs | Joyce Brooks |
| 16.01.1999 January (SA) | 2 | 343 | 409 |
| 24.10.1999 October (SA) | 1 | 342 | 290 |
| 21.05.2001 May (SA) | 1 | 342 | 343 |
| 24.07.2000 July (SA) | 1 | 403 | 391 |
| 13.01.2002 January Open (SA) | 2 | 366 | 331 |
| 20.10.2002 October (SA) | 4 | 340 | 273 |
| Head-to-head after 6 games | 4 | 2 | |
| Average score | 356 | 339.5 | |
| Spread: | 99 | -99 | |