stadio: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Nakhon Si Thammarat - Qual. | 2024/02/18 03:50 | Leo Vithoontien v Krittin Koaykul | 6-4,6-4 |
| ITF M15 Nakhon Si Thammarat | 2024/02/21 03:55 | Leo Vithoontien v Jumpei Yamasaki | 5-7,7-6,0-6 |
| ITF M15 Nakhon Si Thammarat | 2024/02/19 02:00 | Leo Vithoontien v Linghao Zhang | 6-3,6-4 |
| ITF M15 Nakhon Si Thammarat - Qual. | 2024/02/18 03:50 | Leo Vithoontien v Krittin Koaykul | 6-4,6-4 |
| Challenger Drummondville | 2023/11/13 15:00 | Kiranpal Pannu v Leo Vithoontien | 6-3,6-2 |
| Challenger Drummondville | 2023/11/12 15:00 | Benjamin Sigouin v Leo Vithoontien | 4-6,3-6 |
| ITF M15 Winston-Salem | 2023/11/07 17:30 | Robin Catry v Leo Vithoontien | 6-4,6-2 |
| ITF M25 Edmonton | 2023/11/02 21:10 | Mohamed Aziz Dougaz v Leo Vithoontien | 2-6,7-6,6-3 |
| ITF M25 Edmonton | 2023/11/02 01:45 | Leo Vithoontien v Jonathan Sorbo | 6-2,6-2 |
| ITF M15 Nakhon Si Thammarat - Qual. | 2024/02/18 03:50 | Leo Vithoontien v Krittin Koaykul | 6-4,6-4 |
| ITF M15 Nakhon Si Thammarat | 2024/02/14 04:45 | Orel Kimhi v Krittin Koaykul | 6-4,6-0 |
| ITF M15 Nakhon Si Thammarat | 2024/02/12 04:45 | Jumpei Yamasaki v Krittin Koaykul | 4-6,3-6 |
| ITF M15 Nakhon Si Thammarat | 2024/02/11 04:00 | Pannawat Suttisomboon v Krittin Koaykul | 4-6,3-6 |
| ITF M25 Hua Hin | 2023/11/15 02:50 | Koki Matsuda v Krittin Koaykul | 6-2,7-5 |
| ITF M15 Hua Hin | 2023/11/09 05:20 | Krittin Koaykul v Filip Peliwo | 1-6,2-6 |
| ITF M15 Hua Hin | 2023/11/08 04:50 | Michael Agwi v Krittin Koaykul | 4-6,3-6 |
| ITF M15 Nakhon Si Thammarat | 2023/09/05 02:00 | Francois Musitelli v Krittin Koaykul | 6-3,6-2 |