Seong Chan Hong defeated Gengo Kikuchi 4-6 6-3 7-6 in the M15 Nishi-Tokyo 1 round of 32 on hard. The result followed the form book — Seong Chan Hong came in leading the head-to-head 1–0. Seong Chan Hong extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-03-27 | Japan F4 | R16 | hard | Seong Chan Hong | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.