| ITF M15 Nakhon Si Thammarat | 2024/07/17 06:55 | Siwanat Auytayakul v Ajeet Rai | 4-6,4-6 |
| ITF M15 Nakhon Si Thammarat | 2024/07/10 02:00 | Siwanat Auytayakul v Kasidit Samrej | 3-6,2-6 |
| ITF M15 Nakhon Si Thammarat Qual | 2024/07/08 06:30 | Yamato Sueoka v Siwanat Auytayakul | 3-6,6-7 |
| ITF M15 Nakhon Si Thammarat Qual | 2024/07/07 06:20 | Serafin Zund v Siwanat Auytayakul | 5-7,4-6 |
| ITF M15 Nakhon Si Thammarat | 2024/07/03 02:00 | Chase Ferguson v Siwanat Auytayakul | 6-2,7-6 |
| ITF M15 Hong Kong | 2024/06/18 04:45 | Siwanat Auytayakul v Aayush P Bhat | 7-5,5-7,5-10 |
| ITF M15 Hong Kong | 2024/06/17 02:00 | Siwanat Auytayakul v Christian S Wong | 6-3,6-3 |
| ITF M15 Nakhon Si Thammarat | 2024/02/27 02:00 | Taisei Ichikawa v Siwanat Auytayakul | 6-2,6-3 |
| 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 |