Yosuke Watanuki defeated Shintaro Imai 1-6 6-4 6-2 in the Japan F4 final on hard. The result followed the form book — Yosuke Watanuki came in ranked #416, leading the head-to-head 1–0. Yosuke Watanuki extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-05 | Japan F7 | R16 | hard | Yosuke Watanuki | 6-7(5) 6-3 6-1 |
Averages over each player's completed matches in the selected window (198 vs 200). 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