| Date | Tournament | State | Round | Harry Van Dijk | Marge Roberts |
|---|---|---|---|---|---|
| 30/09/2001 | Manjimup | WA | 6 | 379 | 406 |
| 25/09/2005 | Manjimup Standard | WA | 3 | 283 | 437 |
| 01/10/2006 | Manjimup | WA | 5 | 325 | 300 |
| 29/09/2007 | Pinjarra Maximin | WA | 4 | 302 | 337 |
| Head-to-head after 4 games | 1 | 3 | |||
| Average score | 322.25 | 370.00 | |||
| Spread | -191 | 191 | |||