Shuai Zhang defeated Kai Chen Chang 6-4 6-7 6-4 in the Kuala Lumpur round of 32 on hard. The upset overturned the form book — Kai Chen Chang came in leading the head-to-head 2–0, defending last year's quarter-final. Shuai Zhang claimed a first win over Kai Chen Chang in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-07-24 | Nanchang | R32 | hard | Kai Chen Chang | 6-4 6-7(6) 6-4 |
| 2010-02-22 | Kuala Lumpur | R32 | hard | Kai Chen Chang | 7-6(4) 7-5 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (200 vs 82). ATP, WTA & Challenger.