Venus Williams defeated Tsvetana Pironkova 6-1 6-3 in the Istanbul semi-final on clay. The upset overturned the form book — Tsvetana Pironkova came in leading the head-to-head 3–0. Venus Williams claimed a first win over Tsvetana Pironkova in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-06-20 | Wimbledon | R16 | grass | Tsvetana Pironkova | 6-2 6-3 |
| 2010-06-21 | Wimbledon | QF | grass | Tsvetana Pironkova | 6-2 6-3 |
| 2006-01-16 | Australian Open | R128 | hard | Tsvetana Pironkova | 2-6 6-0 9-7 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (199 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About