| Tournament | Round | Bertha Williams | Maureen Gill |
| 17.10.1999 Rockingham (WA) | 5 | 338 | 364 |
| 28.05.2000 Melville (WA) | 2 | 378 | 307 |
| 10.06.2001 Advanced Intermediate Recreation (WA) | 6 | 303 | 321 |
| 11.11.2001 Coogee (WA) | 4 | 349 | 287 |
| 14.07.2002 Bassendean (WA) | 6 | 294 | 417 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 332.4 | 339.2 | |
| Spread: | -34 | 34 | |