Chinami Ogi defeated Wen Hsin Hsu 7-5 6-4 in the Gifu 50K qualifying round on hard. The upset overturned the form book — Wen Hsin Hsu came in leading the head-to-head 1–0. Chinami Ogi claimed a first win over Wen Hsin Hsu in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-17 | Karuizawa 25K | R16 | carpet | Wen Hsin Hsu | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.