| Tournament | Round | Betty Friel | Nigel Wilkinson |
| 19.07.1998 July (SA) | 3 | 313 | 312 |
| 23.08.1998 August (SA) | 2 | 257 | 406 |
| 14.02.1999 South Australian Championships (SA) | 8 | 334 | 345 |
| 21.03.1999 March (SA) | 2 | 274 | 339 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 294.5 | 350.5 | |
| Spread: | -224 | 224 | |