| Tournament | Round | John Spaan | Gillian Briggs |
| 12.09.1998 September (SA) | 3 | 293 | 390 |
| 16.01.1999 January (SA) | 6 | 364 | 363 |
| 21.03.1999 March (SA) | 4 | 354 | 369 |
| 24.09.2006 Australian Masters and State Challenge Trophy (NSW) | 16 | 441 | 301 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 363 | 355.75 | |
| Spread: | 29 | -29 | |