| Tournament | Round | Dawn peos | Bertha Williams |
| 25.04.1999 Nedlands (WA) | 1 | 320 | 275 |
| 03.10.1999 Yokine (WA) | 6 | 321 | 387 |
| 27.05.2001 Melville (WA) | 6 | 387 | 350 |
| 21.10.2001 Rockingham (WA) | 3 | 364 | 293 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 348 | 326.25 | |
| Spread: | 87 | -87 | |