Petra Cetkovska defeated Karolina Kosinska 6-4 7-6 in the Kedzierzyn Kozle 25K semi-final on clay. The upset overturned the form book — Karolina Kosinska came in leading the head-to-head 2–0, but Petra Cetkovska had been the form player, winning 2 of their last 5 on clay. Petra Cetkovska claimed a first win over Karolina Kosinska in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-10-04 | Lafayette LA 25K | SF | clay | Karolina Kosinska | 6-1 4-6 6-3 |
| 2004-08-02 | Gdynia 2 10K | F | clay | Karolina Kosinska | 6-3 6-2 |
Averages over each player's completed matches in the selected window (143 vs 1). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About