| Date | Tournament | State | Round | Betty Ralph | Bertha Williams |
|---|---|---|---|---|---|
| 31/05/1998 | Melville | WA | 3 | 311 | 272 |
| 14/02/1999 | Fremantle | WA | 2 | 299 | 294 |
| 13/06/1999 | Advanced Intermediate Recreation | WA | 5 | 325 | 335 |
| 08/07/2001 | Bassendean | WA | 6 | 317 | 318 |
| 12/08/2001 | Yokine | WA | 3 | 395 | 257 |
| Head-to-head after 5 games | 3 | 2 | |||
| Average score | 329.40 | 295.20 | |||
| Spread | 171 | -171 | |||