Shintaro Imai defeated Hiromasa Oku 3-6 6-2 6-1 in the Japan F1 round of 32 on hard. Shintaro Imai extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-03-14 | Japan F2 | Q16 | hard | Shintaro Imai | 6-1 6-0 |
| 2013-03-11 | Japan F1 | Q16 | hard | Hiromasa Oku | 6-1 6-2 |
Averages over each player's completed matches in the selected window (200 vs 18). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About