| Tournament | Round | Grace de Bonis | Dorothy Kent |
| 08.07.2001 Bassendean (WA) | 5 | 322 | 281 |
| 30.09.2001 Manjimup (WA) | 6 | 319 | 292 |
| 26.02.2006 Mandurah (WA) | 1 | 268 | 349 |
| 12.03.2006 Bunbury (WA) | 2 | 278 | 391 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 296.75 | 328.25 | |
| Spread: | -126 | 126 | |