Ya Hsuan Lee defeated Yurina Koshino 6-7 6-1 7-6 in the Taipei 10K semi-final on hard. The upset overturned the form book — Yurina Koshino came in leading the head-to-head 1–0. Ya Hsuan Lee claimed a first win over Yurina Koshino in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-09-02 | Noto 25K | Q16 | grass | Yurina Koshino | 2-6 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.