| Tournament | Round | Ruby Kotwall | Graeme Lock Lee |
| 20.06.1998 Wollongong Marj Babb (NSW) | 1 | 381 | 399 |
| 12.07.1998 Chatswood (NSW) | 5 | 368 | 386 |
| 26.07.1998 Winter Masters (NSW) | 11 | 305 | 358 |
| 15.08.1998 Revesby (NSW) | 1 | 459 | 265 |
| 05.04.1999 Australian Championships (NSW) | 2 | 431 | 345 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 388.8 | 350.6 | |
| Spread: | 191 | -191 | |