Young Seok Kim defeated Tae Woo Lee 5-7 6-4 6-1 in the Korea F5 final on clay. The upset overturned the form book — Tae Woo Lee came in leading the head-to-head 2–0. Young Seok Kim claimed a first win over Tae Woo Lee in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-12 | Korea F3 | R16 | hard | Tae Woo Lee | 6-3 6-4 |
| 2016-08-29 | Korea F7 | R32 | clay | Tae Woo Lee | 6-2 6-3 |
Averages over each player's completed matches in the selected window (37 vs 33). 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