Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF - M25 Hua Hin | 2023/11/13 04:20 | Thantub Suksumrarn v Natthasith Kunsuwan | 6-2,6-2 |
| ITF M15 - Hua Hin | 2023/11/09 03:00 | Goncalo Oliveira v Thantub Suksumrarn | 6-2,6-4 |
| ITF M15 - Hua Hin | 2023/11/08 03:00 | Thantub Suksumrarn v Pengyu Lu | 6-2,6-2 |
| ITF - M15 Nakhon Si Thammarat | 2023/09/07 02:00 | Mitsuki Wei Kang Leong v Thantub Suksumrarn | 2-6,7-6,7-5 |
| ITF - M15 Nakhon Si Thammarat | 2023/09/06 05:50 | Thantub Suksumrarn v Gage Brymer | 6-4,6-3 |
| ITF - M15 Nakhon Si Thammarat | 2023/09/04 03:10 | Thantub Suksumrarn v Cade Birrell | 6-4,6-3 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/31 04:35 | Thantub Suksumrarn v Maximus Jones | 4-6,3-6 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/30 08:30 | Taiyo Yamanaka v Thantub Suksumrarn | 2-6,3-6 |
| ITF M15 - Hua Hin | 2023/11/05 03:55 | Daksh Prasad v Siwanat Auytayakul | 6-4,3-6,10-6 |
| 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 - Kwal. | 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 - Kwal. | 2023/07/09 06:40 | Ji Hoon Son v Siwanat Auytayakul | 6-3,2-6,7-10 |