Sandra Zahlavova defeated Catalina Castano 1-6 6-4 7-5 in the Biella 100K round of 32 on clay. The upset overturned the form book — Catalina Castano came in leading the head-to-head 1–0, but Sandra Zahlavova had been the form player, winning 4 of their last 6 on clay. Sandra Zahlavova claimed a first win over Catalina Castano in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-07-12 | Prague | R32 | clay | Catalina Castano | 7-6 6-2 |
Averages over each player's completed matches in the selected window (42 vs 18). 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. About