Joanna Sakowicz Kostecka defeated Sandra Kloesel 2-6 7-6 7-5 in the Garching 25K round of 16 on clay. The result followed the form book — Joanna Sakowicz Kostecka came in leading the head-to-head 1–0. Joanna Sakowicz Kostecka extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-07-24 | Petange 50K | R32 | clay | Joanna Sakowicz Kostecka | 6-7(4) 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.