Krittin Koaykul defeated Pannawat Suttisomboon 3-6 6-3 10-2 in the M15 Nakhon Pathom 5 q32 on hard. The result followed the form book — Krittin Koaykul came in leading the head-to-head 2–0. Krittin Koaykul extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-08-17 | M15 Nakhon Pathom 4 | Q32 | hard | Krittin Koaykul | 6-2 6-2 |
| 2024-02-11 | M15 Nakhon Si Thammarat 1 | Q32 | hard | Krittin Koaykul | 6-4 6-3 |