Stadium: Court 5 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Nakhon Si Thammarat Qual | 2023/08/27 04:45 | James Watt v Geni Inoue | 6-4,7-6 |
| ITF M15 Nakhon Si Thammarat | 2023/08/23 08:30 | James Watt v Palaphoom Kovapitukted | 6-7,7-5,3-6 |
| ITF M15 Caloundra | 2023/08/01 01:45 | James Watt v Sam Oster | 6-7,6-2,7-10 |
| ITF M15 Caloundra | 2023/07/26 02:05 | Ryuki Matsuda v James Watt | 1-6,6-3,6-4 |
| ITF M15 Los Angeles | 2023/06/22 18:00 | James Watt v Omni Kumar | 2-6,2-6 |
| ITF M15 Los Angeles | 2023/06/21 21:30 | Guillaume Dalmasso v James Watt | 1-6,5-7 |
| ITF M15 San Diego | 2023/06/05 17:00 | James Watt v Sebastian Gorzny | 2-6,3-6 |
| ITF M15 Tauranga | 2022/12/19 21:00 | Kody Pearson v James Watt | 6-4,6-4 |
| ITF M15 Nakhon Si Thammarat Qual | 2023/08/27 03:30 | Jordan Chiu v Thantub Suksumrarn | 2-6,4-6 |
| ITF M15 Nakhon Si Thammarat | 2023/08/23 04:50 | Khumoyun Sultanov v Thantub Suksumrarn | 6-1,6-2 |
| ITF M15 Nakhon Si Thammarat | 2023/07/05 02:00 | Patrik Oplustil v Thantub Suksumrarn | 7-5,6-3 |
| ITF M15 Nakhon Si Thammarat | 2023/07/03 05:00 | Thantub Suksumrarn v Congsup Congcar | 6-1,6-7,8-10 |
| ITF M15 Nakhon Si Thammarat | 2023/07/02 04:30 | Thantub Suksumrarn v Blake Bayldon | 6-3,6-1 |
| ITF M25 Nakhon Si Thammarat | 2023/06/14 03:30 | Shinji Hazawa v Thantub Suksumrarn | 6-3,6-1 |
| ITF M15 Nakhon Si Thammarat | 2023/06/06 02:00 | Shinji Hazawa v Thantub Suksumrarn | 6-0,6-3 |
| ITF M15 Nakhon Si Thammarat | 2023/06/01 02:00 | Blake Ellis v Thantub Suksumrarn | 7-6,6-4 |