| Tournament | Round | Grace de Bonis | Pat Parkinson |
| 19.03.2000 Bunbury (WA) | 4 | 300 | 243 |
| 29.09.2002 Manjimup (WA) | 2 | 290 | 322 |
| 03.10.2004 Manjimup (WA) | 1 | 319 | 310 |
| 25.09.2005 Manjimup Standard (WA) | 3 | 285 | 351 |
| 01.10.2006 Manjimup (WA) | 4 | 385 | 343 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 315.8 | 313.8 | |
| Spread: | 10 | -10 | |