Jin A Lee defeated Wen Hsin Hsu 7-6 5-7 6-4 in the Incheon 25K qualifying round on hard. The upset overturned the form book — Wen Hsin Hsu came in leading the head-to-head 2–0, but Jin A Lee had been the form player, winning 6 of their last 7 on hard. Jin A Lee claimed a first win over Wen Hsin Hsu in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-04-26 | Gimcheon 25K | QF | hard | Wen Hsin Hsu | 6-3 2-6 6-4 |
| 2009-09-28 | Hamanako 25K | R16 | carpet | Wen Hsin Hsu | 7-5 4-6 7-6(4) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.