Krittin Koaykul defeated Tanakorn Srirat 6-4 6-2 in the M25 Nakhon Si Thammarat 1 q32 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 |
|---|---|---|---|---|---|
| 2023-07-10 | M15 Nakhon Si Thammarat 4 | Q16 | hard | Krittin Koaykul | 7-6(3) 7-6(6) |