Stadium: Court 2 Round: 54 Ground: Hardcourt outdoor
| 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 |
| ITF M15 Nakhon Si Thammarat | 2023/08/29 04:40 | Krittin Koaykul v Sidharth Rawat | 4-6,2-6 |
| ITF M15 Nakhon Si Thammarat | 2023/08/20 05:00 | Rob Reynolds v Krittin Koaykul | 6-3,7-6 |
| ITF M15 Nakhon Si Thammarat | 2023/07/19 03:40 | Tommy Czaplinski v Krittin Koaykul | 6-4,6-2 |
| ITF M15 Nakhon Si Thammarat | 2023/07/10 04:05 | Krittin Koaykul v Tanakorn Srirat | 7-6,7-6 |