| Tournament | Round | Colleen McCormick | Annette Nienaber |
| 30.08.1998 Yokine (WA) | 6 | 400 | 277 |
| 13.02.2000 Fremantle (WA) | 3 | 424 | 376 |
| 10.09.2000 Yokine (WA) | 3 | 406 | 416 |
| 08.07.2001 Bassendean (WA) | 6 | 370 | 357 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 400 | 356.5 | |
| Spread: | 174 | -174 | |