Junn Mitsuhashi defeated Yuichi Sugita 4-6 6-4 6-3 in the Japan F10 qualifying round on hard. The upset overturned the form book — Yuichi Sugita came in leading the head-to-head 1–0, but Junn Mitsuhashi had been the form player, winning 5 of their last 10 on hard. Junn Mitsuhashi claimed a first win over Yuichi Sugita in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-03-31 | Japan F3 | R16 | hard | Yuichi Sugita | 3-6 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.