Kai Chen Chang defeated Jin A Lee 6-3 6-2 in the Changwon 25K qualifying round on hard. The result followed the form book — Kai Chen Chang came in leading the head-to-head 1–0. Kai Chen Chang extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-04 | Fukuoka 50K | R16 | grass | Kai Chen Chang | 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.