| Date | Tournament | State | Round | Ruby Kotwall | Robin Duncan |
|---|---|---|---|---|---|
| 20/06/1998 | Wollongong Marj Babb | NSW | 2 | 345 | 404 |
| 14/11/1998 | Sydney | NSW | 2 | 431 | 372 |
| 08/05/1999 | Hassall Grove | NSW | 9 | 349 | 360 |
| 05/06/1999 | Wollongong Marj Babb | NSW | 1 | 310 | 456 |
| 10/07/1999 | Chatswood | NSW | 2 | 318 | 413 |
| Head-to-head after 5 games | 1 | 4 | |||
| Average score | 350.60 | 401.00 | |||
| Spread | -252 | 252 | |||