Mirielle Dittmann defeated Nicole Rencken 6-1 6-3 in the Port Pirie 25K round of 16 on hard. The upset overturned the form book — Nicole Rencken came in leading the head-to-head 3–1. Mirielle Dittmann narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-10-18 | Rockhampton 25K | R32 | hard | Nicole Rencken | 6-3 6-2 |
| 2002-10-28 | Dalby 25K | R32 | hard | Nicole Rencken | 3-6 6-3 7-5 |
| 2002-10-21 | Rockhampton 25K | R32 | hard | Nicole Rencken | 6-3 7-6(5) |
| 2001-10-22 | Home Hill 25K | SF | hard | Mirielle Dittmann | 7-5 7-5 |