Gengo Kikuchi defeated Hiroyasu Ehara 1-6 6-4 6-3 in the Japan F6 round of 16 on carpet. The upset overturned the form book — Hiroyasu Ehara came in leading the head-to-head 2–0. Gengo Kikuchi claimed a first win over Hiroyasu Ehara in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-12 | Japan F8 | QF | carpet | Hiroyasu Ehara | 6-0 |
| 2012-06-11 | Japan F5 | R16 | clay | Hiroyasu Ehara | 6-3 6-4 |
Averages over each player's completed matches in the selected window (57 vs 40). 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