Zarina Diyas defeated Kai Chen Chang 6-2 4-6 7-6 in the Taipei 25K semi-final on hard. The upset overturned the form book — Kai Chen Chang came in leading the head-to-head 2–0. Zarina Diyas 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 |
|---|---|---|---|---|---|
| 2009-08-26 | US Open | Q128 | hard | Kai Chen Chang | 6-3 6-0 |
| 2009-05-04 | Fukuoka 50K | QF | grass | Kai Chen Chang | 6-3 6-1 |
Averages over each player's completed matches in the selected window (199 vs 120). 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