Kai Chen Chang defeated Qiang Wang 6-3 3-6 6-4 in the CHN vs TPE round robin on hard. The upset overturned the form book — Qiang Wang came in leading the head-to-head 2–1, but Kai Chen Chang had been the form player, winning 6 of their last 10 on hard. Kai Chen Chang narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-10-09 | Hong Kong | R32 | hard | Qiang Wang | 6-3 6-0 |
| 2017-07-03 | Wimbledon | R128 | grass | Qiang Wang | 6-3 6-4 |
| 2008-05-12 | Kurume 50K | R16 | grass | Kai Chen Chang | 6-4 6-4 |
Averages over each player's completed matches in the selected window (92 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About