| Date | Tournament | State | Round | Ruby Kotwall | Joan Rosenthal |
|---|---|---|---|---|---|
| 15/08/1998 | Revesby | NSW | 2 | 368 | 396 |
| 05/04/1999 | Australian Championships | NSW | 1 | 413 | 330 |
| 08/05/1999 | Hassall Grove | NSW | 1 | 390 | 452 |
| 04/10/1999 | New South Wales Championships | NSW | 10 | 291 | 364 |
| 23/10/1999 | Spring Marathon | NSW | 3 | 339 | 526 |
| Head-to-head after 5 games | 1 | 4 | |||
| Average score | 360.20 | 413.60 | |||
| Spread | -267 | 267 | |||