Jeong Heon Lee defeated G. J. Kim 2-6 6-1 10-4 in the M15 Gimcheon 1 q16 on hard. The upset overturned the form book — G. J. Kim came in leading the head-to-head 1–0, but Jeong Heon Lee had been the form player, winning 6 of their last 10 on hard. Jeong Heon Lee claimed a first win over G. J. Kim in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-06-17 | M25 Changwon 1 | Q32 | hard | G. J. Kim | 6-3 6-3 |