Junn Mitsuhashi defeated Arata Onozawa 7-6 6-1 in the Korea Rep F4 round of 32 on hard. The result followed the form book — Junn Mitsuhashi came in leading the head-to-head 2–0. Junn Mitsuhashi extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-09-24 | Vietnam F6 | R16 | hard | Junn Mitsuhashi | 6-3 6-4 |
| 2008-10-20 | Japan F11 | R32 | hard | Junn Mitsuhashi | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.