Kyung Mi Chang defeated Chiaki Okadaue 7-5 7-5 in the Miyazaki 25K qualifying round on carpet. The result followed the form book — Kyung Mi Chang came in leading the head-to-head 1–0. Kyung Mi Chang extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-25 | Goyang 25K | R32 | hard | Kyung Mi Chang | 6-4 4-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.