Saisai Zheng defeated Ying Ying Duan 7-6 7-5 in the Hong Kong round of 32 on hard. The result followed the form book — Saisai Zheng came in leading the head-to-head 2–0. Saisai Zheng extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-10-07 | Tianjin | R32 | hard | Saisai Zheng | 7-6(4) 6-2 |
| 2019-09-16 | Guangzhou | R32 | hard | Saisai Zheng | 6-7(5) 7-6(3) 6-1 |
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 (200 vs 151). ATP, WTA & Challenger.