Junn Mitsuhashi defeated Chu Huan Yi 3-6 6-4 7-6 in the Japan F10 round of 16 on hard. The upset overturned the form book — Chu Huan Yi came in leading the head-to-head 2–0, but Junn Mitsuhashi had been the form player, winning 3 of their last 7 on hard. Junn Mitsuhashi claimed a first win over Chu Huan Yi in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-04-12 | Korea F2 | R16 | hard | Chu Huan Yi | 6-1 6-3 |
| 2009-03-16 | Japan F1 | R32 | hard | Chu Huan Yi | 7-6(7) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.