| Tournament | Round | Dieter Jedamski | Sybil Boyt |
| 22.02.1998 Unley February (SA) | 1 | 321 | 335 |
| 21.03.1998 February (SA) | 1 | 359 | 453 |
| 29.03.1998 Unley (SA) | 1 | 321 | 335 |
| 24.05.1998 South Australian Championships (SA) | 3 | 422 | 349 |
| 12.09.1998 September (SA) | 1 | 330 | 310 |
| 14.02.1999 South Australian Championships (SA) | 2 | 405 | 398 |
| Head-to-head after 6 games | 3 | 3 | |
| Average score | 359.66 | 363.33 | |
| Spread: | -22 | 22 | |