Cheong Eui Kim defeated Young Seok Kim 6-4 6-3 in the Korea F4 semi-final on hard. Cheong Eui Kim extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-05 | Korea F2 | R32 | hard | Cheong Eui Kim | 6-1 7-6(6) |
| 2015-04-06 | China F2 | SF | clay | Young Seok Kim | 7-6(5) 7-6(2) |
Averages over each player's completed matches in the selected window (121 vs 37). 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