Seong Chan Hong defeated Shuichi Sekiguchi 7-6 6-4 in the M15 Nishi-Tokyo 1 final on hard. Seong Chan Hong extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-04-13 | M25 Matsuyama 1 | SF | hard | Shuichi Sekiguchi | 6-2 6-3 |
| 2018-03-12 | Japan F2 | R32 | hard | Seong Chan Hong | 6-4 1-6 7-6(2) |
Averages over each player's completed matches in the selected window (131 vs 50). 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