Dong Hak Sin defeated Jae Won Choi 6-4 7-5 in the Korea F8 q64 on clay. The upset overturned the form book — Jae Won Choi came in leading the head-to-head 1–0. Dong Hak Sin claimed a first win over Jae Won Choi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-25 | Korea F2 | Q64 | hard | Jae Won Choi | 6-2 6-1 |
Averages over each player's completed matches in the selected window (2 vs 4). ATP, WTA & Challenger.
wins 57% of points on serve vs Hak Sin D.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About