| Date | Tournament | State | Round | Betty Coleman | Ruby Kotwall |
|---|---|---|---|---|---|
| 05/11/1994 | Sydney Club | NSW | 4 | 358 | 369 |
| 15/02/1997 | Wollongong | NSW | 5 | 428 | 350 |
| 05/10/1998 | New South Wales Championships | NSW | 16 | 334 | 315 |
| 11/04/2002 | Sutherland | NSW | 3 | 323 | 425 |
| Head-to-head after 4 games | 2 | 2 | |||
| Average score | 360.75 | 364.75 | |||
| Spread | -16 | 16 | |||