Jie Zheng defeated Tsvetana Pironkova 7-5 6-2 in the New Haven round of 32 on hard. The upset overturned the form book — Tsvetana Pironkova came in defending last year's round of 32. Jie Zheng extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-10-29 | Tournament of Champions | RR | hard | Tsvetana Pironkova | 2-6 6-4 7-6(4) |
| 2006-08-07 | Stockholm | SF | hard | Jie Zheng | 6-2 7-6(5) |
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 (100 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About