| Tournament | Round | Ruby Kotwall | Robert Tomkins |
| 12.07.1998 Chatswood (NSW) | 3 | 421 | 383 |
| 05.10.1998 New South Wales Championships (NSW) | 8 | 421 | 376 |
| 05.04.1999 Australian Championships (NSW) | 6 | 341 | 385 |
| 10.07.1999 Chatswood (NSW) | 5 | 342 | 360 |
| 04.10.1999 New South Wales Championships (NSW) | 6 | 390 | 324 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 383 | 365.6 | |
| Spread: | 87 | -87 | |