| Tournament | Round | Ruby Kotwall | Trevor Halsall |
| 05.04.1999 Australian Championships (NSW) | 4 | 397 | 414 |
| 08.05.1999 Hassall Grove (NSW) | 6 | 445 | 297 |
| 04.10.1999 New South Wales Championships (NSW) | 1 | 369 | 403 |
| Head-to-head after 3 games | 1 | 2 | |
| Average score | 403.66 | 371.33 | |
| Spread: | 97 | -97 | |