| Tournament | Round | Bertha Williams | Betty Ralph |
| 31.05.1998 Melville (WA) | 3 | 272 | 311 |
| 14.02.1999 Fremantle (WA) | 2 | 294 | 299 |
| 13.06.1999 Advanced Intermediate Recreation (WA) | 5 | 335 | 325 |
| 08.07.2001 Bassendean (WA) | 6 | 318 | 317 |
| 12.08.2001 Yokine (WA) | 3 | 257 | 395 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 295.2 | 329.4 | |
| Spread: | -171 | 171 | |