| Tournament | Round | Gillian Briggs | Nigel Wilkinson |
| 21.03.1999 March (SA) | 1 | 359 | 346 |
| 22.08.1999 August (SA) | 6 | 342 | 299 |
| 24.10.1999 October (SA) | 5 | 355 | 357 |
| 21.11.1999 November (SA) | 3 | 424 | 372 |
| 24.07.2000 July (SA) | 3 | 415 | 301 |
| 23.03.2001 South Australian Championships (SA) | 10 | 344 | 308 |
| 27.05.2001 May (SA) | 5 | 404 | 285 |
| 16.09.2001 September (SA) | 6 | 405 | 286 |
| 10.02.2002 February (SA) | 3 | 358 | 376 |
| 13.09.2003 Southern Tournament (SA) | 4 | 360 | 390 |
| 20.11.2005 November (SA) | 1 | 405 | 429 |
| 12.03.2006 South Australian Championships (SA) | 14 | 379 | 360 |
| 17.04.2006 Australian Championships (QLD) | 17 | 333 | 287 |
| 17.06.2006 SA June Tournament (SA) | 1 | 403 | 312 |
| 10.09.2006 September Tournament (SA) | 6 | 355 | 321 |
| 22.10.2006 October Tournament (SA) | 1 | 376 | 306 |
| 28.12.2006 Christmas Leftovers PM (SA) | 3 | 404 | 280 |
| 04.02.2007 SA February Tournament (SA) | 1 | 427 | 365 |
| 20.10.2007 SA October Tournament (SA) | 1 | 419 | 256 |
| 03.02.2008 SA February Tournament (SA) | 4 | 464 | 348 |
| 28.12.08 SA Leftovers (SA) | 4 | 312 | 320 |
| 14.11.2009 Southern Tournament (SA) | 1 | 460 | 273 |
| Head-to-head after 22 games | 17 | 5 | |
| Average score | 386.5 | 326.22 | |
| Spread: | 1326 | -1326 | |