Ying Ying Duan defeated Chen Liang 6-2 7-5 in the Hefei 10K semi-final on hard. The result followed the form book — Ying Ying Duan came in leading the head-to-head 3–0. Ying Ying Duan extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-07-20 | Zhengzhou $25K | QF | hard | Ying Ying Duan | 6-4 6-4 |
| 2012-05-28 | Gimcheon 25K | QF | hard | Ying Ying Duan | 6-1 6-2 |
| 2011-03-14 | Sanya 25K | R32 | hard | Ying Ying Duan | 6-1 6-4 |
Averages over each player's completed matches in the selected window (160 vs 1). 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. Small sample — read as indicative. About