| Tournament | Round | Bertha Williams | Eileen Moyle |
| 13.06.1999 Advanced Intermediate Recreation (WA) | 1 | 326 | 370 |
| 05.12.1999 Marathon December (WA) | 4 | 350 | 252 |
| 28.05.2000 Melville (WA) | 3 | 350 | 344 |
| 10.06.2001 Advanced Intermediate Recreation (WA) | 2 | 312 | 343 |
| 26.05.2002 Melville (WA) | 6 | 281 | 348 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 323.8 | 331.4 | |
| Spread: | -38 | 38 | |