| Tournament | Round | Betty Ralph | Muriel Retford |
| 13.06.1999 Advanced Intermediate Recreation (WA) | 3 | 336 | 385 |
| 08.07.2000 Bassendean (WA) | 5 | 284 | 432 |
| 08.04.2001 Nedlands (WA) | 2 | 277 | 377 |
| 22.06.2003 Manning (WA) | 2 | 347 | 338 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 311 | 383 | |
| Spread: | -288 | 288 | |