Stadium: Court 2 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Nakhon Si Thammarat | 2023/06/11 07:35 | Pawit Sornlaksup v Daksh Prasad | 3-6,6-0,10-2 |
| ITF M15 Nakhon Si Thammarat | 2023/08/22 02:00 | Siwanat Auytayakul v Grigoriy Lomakin | 6-7,4-6 |
| ITF M15 Nakhon Si Thammarat | 2023/07/19 02:00 | Manish Sureshkumar v Siwanat Auytayakul | 6-3,6-1 |
| ITF M15 Nakhon Si Thammarat | 2023/07/17 02:15 | Suphawat Saeoui v Siwanat Auytayakul | 6-4,2-6,5-10 |
| ITF M15 Nakhon Si Thammarat Qual | 2023/07/16 04:25 | Siwanat Auytayakul v Blake Bayldon | 7-6,6-4 |
| ITF M15 Nakhon Si Thammarat | 2023/07/13 03:45 | Taisei Ichikawa v Siwanat Auytayakul | 7-5,7-5 |
| ITF M15 Nakhon Si Thammarat | 2023/07/10 04:05 | Siwanat Auytayakul v Corban Crowther | 6-2,6-4 |
| ITF M15 Nakhon Si Thammarat Qual | 2023/07/09 06:40 | Ji Hoon Son v Siwanat Auytayakul | 6-3,2-6,7-10 |
| ITF M15 Nakhon Si Thammarat | 2023/07/06 06:35 | Siwanat Auytayakul v Yurii Dzhavakian | 6-4,4-6,6-7 |