| Tournament | Round | Ruby Kotwall | Judy Hay |
| 20.06.1998 Wollongong Marj Babb (NSW) | 6 | 382 | 387 |
| 26.07.1998 Winter Masters (NSW) | 14 | 351 | 429 |
| 15.08.1998 Revesby (NSW) | 5 | 403 | 392 |
| 05.10.1998 New South Wales Championships (NSW) | 12 | 406 | 348 |
| 11.09.2000 St George (NSW) | 2 | 350 | 374 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 378.4 | 386 | |
| Spread: | -38 | 38 | |