Cheong Eui Kim defeated Young Seok Kim 6-1 7-6 in the Korea F2 round of 32 on hard. Cheong Eui Kim extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-19 | Korea F4 | SF | hard | Cheong Eui Kim | 6-4 6-3 |
| 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