| ITF M15 Nonthaburi | 2025/03/26 03:00 | Krittin Koaykul v Uisung Park | 2-6,1-6 |
| ITF M15 Nonthaburi Qual | 2025/03/16 06:00 | Daniel Khazime v Krittin Koaykul | 6-0,6-1 |
| ITF M15 Nonthaburi | 2025/03/09 04:30 | Giorgio Tabacco v Krittin Koaykul | 6-1,6-1 |
| ITF M25 Nakhon Si Thammarat | 2024/09/02 04:40 | Krittin Koaykul v Minghui Zhang | 4-6,4-6 |
| ITF M25 Nakhon Si Thammarat | 2024/08/27 03:35 | Krittin Koaykul v Mukund Sasikumar | 0-6,4-6 |
| ITF M25 Nakhon Si Thammarat | 2024/08/26 02:00 | Jae Hwan Kim v Krittin Koaykul | 6-3,6-1 |
| ITF M25 Nakhon Si Thammarat | 2024/08/25 02:00 | Tanakorn Srirat v Krittin Koaykul | 4-6,2-6 |
| ITF M15 Nakhon Si Thammarat | 2024/08/21 03:35 | Pengyu Lu v Krittin Koaykul | 6-0,7-6 |
| ITF M15 Nakhon Si Thammarat Qual | 2024/02/25 07:05 | Pumiphat Sukkho v Zhao Zhao | 3-6,2-6 |
| ITF M15 Hua Hin | 2023/11/05 04:15 | Zongbing Yu v Pumiphat Sukkho | 6-2,6-1 |
| ITF M15 Chiang Rai | 2022/06/12 05:05 | Pumiphat Sukkho v Guntinun Sootinun-Opart | 3-6,1-6 |