Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF M15 - Nakhon Si Thammarat | 2023/09/06 05:45 | Leo Vithoontien v Pruchya Isarow | 7-6,6-7,0-6 |
| ITF M15 - Nakhon Si Thammarat | 2023/08/31 03:55 | Siddhant Banthia v Leo Vithoontien | 6-4,0-6,6-2 |
| ITF M15 - Nakhon Si Thammarat | 2023/08/29 02:00 | Leo Vithoontien v Jacob Bradshaw | 6-7,6-3,6-1 |
| ITF M15 - Nakhon Si Thammarat | 2023/08/24 05:00 | Leo Vithoontien v Kasidit Samrej | 6-7,2-6 |
| ITF M15 - Nakhon Si Thammarat | 2023/08/23 07:40 | Seon Yong Han v Leo Vithoontien | 7-6,0-6,2-6 |
| ITF M15 - Pittsburgh | 2023/07/26 14:00 | Kyle Seelig v Leo Vithoontien | 6-4,2-6,6-4 |
| ITF M15 - Rochester | 2023/07/18 22:30 | Rafael Tosetto v Leo Vithoontien | 7-6,3-6,6-3 |
| ITF M25 - Laval | 2023/07/15 13:55 | James Tracy v Leo Vithoontien | 6-3,6-2 |
| ITF M15 - Satu Mare | 2023/09/11 07:00 | Ryuhei Azuma v Michalis Sakellaridis | 5-7,2-6 |
| ITF M15 - Satu Mare | 2023/09/10 09:30 | Ryuhei Azuma v Marton Liszka | 6-0,6-4 |
| ITF M15 - Constanta | 2023/09/04 09:30 | Vasile Antonescu v Ryuhei Azuma | 6-2,7-5 |
| ITF M25 - Yinchuan | 2023/08/14 02:00 | Jiayang Dong v Ryuhei Azuma | 2-0 |
| ITF M25 - Yinchuan | 2023/08/13 02:00 | Ryuhei Azuma v Zhuyuan Li | 6-2,6-1 |
| ITF M15 - Orange Park | 2023/05/01 15:30 | Ryuhei Azuma v Lance A L Castelan | 6-2,6-2 |
| UTR Pro Tennis Series - Florida | 2022/12/04 14:30 | Ryuhei Azuma v Sean Daryabeigi | 6-2,5-2 |
| UTR Pro Tennis Series - Florida | 2022/12/03 17:00 | Andres Andrade v Ryuhei Azuma | 2-6,4-5 |