Krittin Koaykul defeated Teerapat Khantiweerawat 7-6 6-4 in the M15 Hua Hin 2 round of 32 on hard. The result followed the form book — Krittin Koaykul came in leading the head-to-head 1–0. Krittin Koaykul extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-08-18 | M15 Nakhon Pathom 4 | Q16 | hard | Krittin Koaykul | 6-1 6-0 |