| Tournament | Round | Ruby Kotwall | Hanne Marks |
| 26.07.1998 Winter Masters (NSW) | 16 | 344 | 383 |
| 05.10.1998 New South Wales Championships (NSW) | 4 | 414 | 261 |
| 05.04.1999 Australian Championships (NSW) | 11 | 350 | 302 |
| 05.04.1999 Australian Championships (NSW) | 21 | 386 | 320 |
| 11.09.2000 St George (NSW) | 7 | 581 | 263 |
| Head-to-head after 5 games | 4 | 1 | |
| Average score | 415 | 305.8 | |
| Spread: | 546 | -546 | |