Gengo Kikuchi defeated Yunseong Chung 1-6 7-6 7-5 in the Japan F1 round of 16 on hard. The upset overturned the form book — Yunseong Chung came in leading the head-to-head 1–0, but Gengo Kikuchi had been the form player, winning 4 of their last 4 on hard. Gengo Kikuchi claimed a first win over Yunseong Chung in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-03-14 | Japan F2 | QF | hard | Yunseong Chung | 2-6 6-4 6-1 |
Averages over each player's completed matches in the selected window (57 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