Yunseong Chung defeated Jui Chen Hung 6-3 6-4 in the Korea F6 semi-final on hard. The upset overturned the form book — Jui Chen Hung came in leading the head-to-head 1–0, but Yunseong Chung had been the form player, winning 6 of their last 7 on hard. Yunseong Chung claimed a first win over Jui Chen Hung in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-07-17 | China F13 | R16 | hard | Jui Chen Hung | 1-6 6-3 6-4 |
Averages over each player's completed matches in the selected window (200 vs 43). 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