Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Hua Hin | 2019/08/19 06:05 | Kazuma Kawachi v Credit Chaiyarin | 2-6,4-6 |
| ITF M15 Monastir | 2021/06/30 10:30 | Ji Hoon Son v Kazuma Kawachi | 6-3,6-4 |
| ITF M15 Monastir | 2021/06/28 14:00 | Kazuma Kawachi v Vladislav Ivanov | 1-6,6-4,10-6 |
| ITF M15 Monastir | 2021/06/28 09:00 | Kazuma Kawachi v Adam Nagoudi | 6-1,6-4 |
| ITF M15 Monastir | 2021/06/20 10:30 | Shohei Chikami v Kazuma Kawachi | 6-2,6-1 |
| ITF M15 Monastir | 2021/06/14 08:00 | Guilherme Sousa Severin v Kazuma Kawachi | 6-4,4-6,10-4 |
| ITF M15 Monastir | 2021/06/13 11:30 | Imran Sibille v Kazuma Kawachi | 2-6,1-6 |
| ITF M15 Monastir | 2021/06/07 13:30 | Kazuma Kawachi v Devin Badenhorst | 3-6,5-7 |
| ITF M15 Monastir | 2021/06/07 09:00 | Kazuma Kawachi v Raphael Lambling | 6-3,6-4 |
| ITF M15 Antalya | 2021/06/27 06:30 | Vladimir Korolev v Credit Chaiyarin | 7-5,6-3 |
| ITF M15 Antalya | 2021/06/20 07:00 | Credit Chaiyarin v Peter Makk | 1-6,1-6 |
| ITF M15 Antalya | 2021/06/13 07:30 | Michalis Sakellaridis v Credit Chaiyarin | 6-4,6-4 |
| ITF M15 Antalya | 2021/06/07 09:35 | Credit Chaiyarin v Guillaume Dermiens | 0-6,4-6 |
| ITF M15 Antalya | 2021/05/30 07:30 | Credit Chaiyarin v Stefanos Sakellaridis | 5-7,4-6 |
| ITF M15 Antalya | 2021/05/23 07:30 | Credit Chaiyarin v Fletcher Scott | 1-6,1-6 |
| ITF M15 Antalya | 2021/05/09 07:00 | Credit Chaiyarin v Eduardo Ribeiro | 2-6,2-6 |
| ITF M15 Antalya | 2021/05/02 06:00 | Credit Chaiyarin v Buvaysar Gadamauri | 2-6,0-6 |