Ken Onishi defeated Arata Onozawa 6-3 1-6 7-5 in the Japan F1 round of 16 on hard. The upset overturned the form book — Arata Onozawa came in leading the head-to-head 1–0. Ken Onishi claimed a first win over Arata Onozawa in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-06-06 | Japan F7 | R32 | hard | Arata Onozawa | 6-4 6-7(3) 6-0 |
Averages over each player's completed matches in the selected window (51 vs 41). 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