Saisai Zheng defeated Ying Ying Duan 6-7 7-6 6-1 in the Guangzhou round of 32 on hard. The result followed the form book — Saisai Zheng came in leading the head-to-head 4–1, defending last year's round of 16. Saisai Zheng extended the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-10-07 | Tianjin | R32 | hard | Saisai Zheng | 7-6 6-2 |
| 2014-09-08 | Hong Kong | R32 | hard | Saisai Zheng | 7-6 7-5 |
| 2010-06-28 | Hefei 10K | F | hard | Ying Ying Duan | 6-3 6-4 |
| 2010-04-05 | Ningbo 10K | SF | hard | Saisai Zheng | 6-0 3-0 |
| 2009-07-06 | Shenzhen 10K | R16 | hard | Saisai Zheng | 6-3 7-5 |
Averages over each player's completed matches in the selected window (122 vs 11). 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