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