Chan Yeong Oh defeated Jaesung Choe 6-4 4-6 10-8 in the M25 Changwon 1 q16 on hard. The result followed the form book — Chan Yeong Oh came in leading the head-to-head 1–0. Chan Yeong Oh extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-06-05 | M25 Daegu 1 | Q16 | hard | Chan Yeong Oh | 6-2 7-5 |