Kai Chen Chang defeated Lilia Osterloh 7-5 6-4 in the Osaka round of 32 on hard. The result followed the form book — Kai Chen Chang came in leading the head-to-head 1–0, defending last year's round of 16. Kai Chen Chang extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-07-20 | Lexington KY 50K | QF | hard | Kai Chen Chang | 6-2 4-6 6-3 |
Averages over each player's completed matches in the selected window (150 vs 6). 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