G. J. Kim defeated Yeongseok Jeong 6-1 2-6 6-4 in the M25 Daegu 1 round of 16 on hard. G. J. Kim claimed a first win over Yeongseok Jeong in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-06-26 | M15 Anseong 1 | R32 | clay | Yeongseok Jeong | 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.