Se Jin Lee defeated Ji Hee Lee 6-2 6-4 in the Incheon 25K qualifying round of 64 on hard. Se Jin Lee extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-17 | Gimcheon $10K | R32 | hard | Se Jin Lee | 5-7 6-1 7-5 |
| 2010-05-17 | Sunchang 10K | R32 | hard | Ji Hee Lee | 6-2 7-6(4) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.