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