Agnieszka Radwanska advanced when Karolina Kosinska retired 7-5 1-0 in the Hasselt q32. Agnieszka Radwanska claimed a first win over Karolina Kosinska in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-05-02 | Warsaw 25K | R16 | clay | Karolina Kosinska | 4-6 7-6(5) 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.