| Date | Tournament | State | Round | Betty Mitchell | Joan Ashton |
|---|---|---|---|---|---|
| 08/02/1997 | Unley | SA | 1 | 314 | 223 |
| 08/02/1997 | Unley | SA | 1 | 314 | 223 |
| 19/07/1998 | July | SA | 4 | 420 | 286 |
| 12/09/1998 | September | SA | 6 | 323 | 308 |
| 25/10/1998 | October | SA | 4 | 323 | 327 |
| 19/01/2000 | January Open | SA | 6 | 304 | 290 |
| 13/02/2000 | South Australian Championships | SA | 3 | 407 | 374 |
| 09/02/2001 | Unley February | SA | 2 | 386 | 272 |
| Head-to-head after 8 games | 7 | 1 | |||
| Average score | 348.88 | 287.88 | |||
| Spread | 488 | -488 | |||