Mao Xin Gong defeated Junn Mitsuhashi 3-6 6-3 6-1 in the Vietnam F6 qualifying round on hard. The upset overturned the form book — Junn Mitsuhashi came in leading the head-to-head 2–0. Mao Xin Gong claimed a first win over Junn Mitsuhashi in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-09-17 | Vietnam F5 | SF | hard | Junn Mitsuhashi | 7-6(4) 2-6 6-3 |
| 2008-09-08 | Japan F8 | F | hard | Junn Mitsuhashi | 7-6(2) 2-6 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.