Tanja Ostertag defeated Romana Tedjakusuma 6-2 6-1 in the Augusta GA 25K semi-final on hard. The upset overturned the form book — Romana Tedjakusuma came in leading the head-to-head 1–0, but Tanja Ostertag had been the form player, winning 3 of their last 5 on hard. Tanja Ostertag claimed a first win over Romana Tedjakusuma in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-04-03 | Pelham AL 25K | R16 | clay | Romana Tedjakusuma | 6-4 6-1 |