Jin A Lee defeated Misaki Doi 6-2 6-4 in the Incheon 25K semi-final on hard. The upset overturned the form book — Misaki Doi came in leading the head-to-head 1–0, but Jin A Lee had been the form player, winning 5 of their last 5 on hard. Jin A Lee claimed a first win over Misaki Doi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-09-21 | Makinohara 25K | SF | carpet | Misaki Doi | 6-3 5-7 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.