| Date | Tournament | State | Round | Ruth Probert | Marge Roberts |
|---|---|---|---|---|---|
| 14/02/1999 | Fremantle | WA | 3 | 285 | 331 |
| 15/05/2005 | Melville | WA | 1 | 373 | 387 |
| 31/10/2005 | Coogee | WA | 3 | 320 | 301 |
| 21/05/2006 | Melville | WA | 6 | 401 | 324 |
| Head-to-head after 4 games | 2 | 2 | |||
| Average score | 344.75 | 335.75 | |||
| Spread | 36 | -36 | |||