| Tournament | Round | John Spaan | Marlene Brown |
| 23.08.1998 August (SA) | 4 | 341 | 424 |
| 12.09.1998 September (SA) | 4 | 405 | 325 |
| 14.02.1999 South Australian Championships (SA) | 3 | 348 | 327 |
| 21.03.1999 March (SA) | 3 | 465 | 306 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 389.75 | 345.5 | |
| Spread: | 177 | -177 | |