Ying Ying Duan defeated Yue Yue Hu 6-2 3-6 6-2 in the Incheon 25K round of 32 on hard. The result followed the form book — Ying Ying Duan came in leading the head-to-head 4–1. Ying Ying Duan extended the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-04-22 | Wenshan 50K | R32 | hard | Ying Ying Duan | 6-2 6-4 |
| 2012-05-28 | Gimcheon 25K | R32 | hard | Ying Ying Duan | 4-6 6-3 6-4 |
| 2012-02-27 | Wellington 25K | SF | hard | Ying Ying Duan | 6-3 6-3 |
| 2011-08-29 | Tsukuba 25K | R16 | hard | Yue Yue Hu | 6-2 6-0 |
| 2010-06-28 | Hefei 10K | R16 | hard | Ying Ying Duan | 6-1 6-0 |
Averages over each player's completed matches in the selected window (160 vs 4). 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