| Tournament | Round | Ruby Kotwall | Rene Chelton |
| 11.09.1999 St George (NSW) | 5 | 369 | 386 |
| 04.10.1999 New South Wales Championships (NSW) | 16 | 393 | 370 |
| 11.09.2000 St George (NSW) | 1 | 324 | 506 |
| 11.04.2002 Sutherland (NSW) | 2 | 292 | 388 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 344.5 | 412.5 | |
| Spread: | -272 | 272 | |