Sang Yeop Kim defeated Seong Woon Yu 6-2 6-0 in the Korea F8 q64 on hard. The upset overturned the form book — Seong Woon Yu came in leading the head-to-head 2–0. Sang Yeop Kim claimed a first win over Seong Woon Yu in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-06-27 | Korea F3 | Q32 | hard | Seong Woon Yu | 6-3 6-2 |
| 2014-08-25 | Korea F12 | Q32 | clay | Seong Woon Yu | 6-2 1-6 6-3 |
Averages over each player's completed matches in the selected window (1 vs 3). ATP, WTA & Challenger.
wins 57% of points on serve vs Woon Yu S.
wins 61% of points on serve vs Yeop Kim S.
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