Catalina Castano defeated Zuzana Ondraskova 6-4 6-2 in the Miami q32 on hard. The upset overturned the form book — Zuzana Ondraskova came in leading the head-to-head 2–0, defending last year's round of 128. Catalina Castano claimed a first win over Zuzana Ondraskova in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-21 | Roland Garros | Q64 | clay | Zuzana Ondraskova | 6-2 7-6(2) |
| 2003-09-15 | Bordeaux 75K | R32 | clay | Zuzana Ondraskova | 6-2 6-4 |
Averages over each player's completed matches in the selected window (76 vs 37). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About