Korina Perkovic defeated Nadejda Guskova 7-6 6-1 in the Cremona 10K semi-final on clay. The upset overturned the form book — Nadejda Guskova came in leading the head-to-head 1–0. Korina Perkovic claimed a first win over Nadejda Guskova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-11 | Antalya-Manavgat 10K | QF | clay | Nadejda Guskova | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.