Stadium: Court 1 Round: 45
| ITF M15 Anning | 2019/01/07 01:30 | Francesco Bessire v Kazuma Kawachi | 6-4,6-3 |
| ITF M15 Anning | 2019/01/02 03:25 | Luca Castelnuovo v Kazuma Kawachi | 6-4,6-3 |
| ITF M15 Anning | 2018/12/31 05:00 | Kazuma Kawachi v Francesco Bessire | 6-7,7-6,10-7 |
| ITF M15 Anning | 2018/12/31 01:30 | Kazuma Kawachi v RunYu Zhao | 6-1,6-0 |
| Challenger Kobe | 2018/11/10 04:15 | Kazuma Kawachi v Sho Shimabukuro | 2-6,2-6 |
| ITF Tunisia F35 | 2018/10/09 08:30 | Samm Butler v Kazuma Kawachi | 7-6,7-5 |
| ITF Tunisia F34 | 2018/10/04 10:40 | Kazuma Kawachi v Altug Celikbilek | 2-6,6-4,3-6 |
| ITF Tunisia F34 | 2018/10/03 09:35 | Quentin Folliot v Kazuma Kawachi | 6-1,2-6,6-7 |
| ITF M15 Anning | 2018/12/31 01:30 | Krittin Koaykul v Francesco Bessire | 3-6,2-6 |
| ITF Thailand F9 | 2018/11/10 05:00 | Krittin Koaykul v Chayanon Kaewsuto | 2-6,6-1,3-6 |
| ITF Thailand F8 | 2018/11/03 02:00 | Phongsapak Kerdlaphee v Krittin Koaykul | 6-2,6-4 |
| ITF Thailand F7 | 2018/10/28 03:00 | Krittin Koaykul v Siddharth Vishwakarma | 2-6,5-7 |
| ITF Thailand F7 | 2018/10/27 02:00 | Michael Mathayomchand v Krittin Koaykul | 3-6,5-7 |
| ITF Thailand F6 | 2018/10/10 03:00 | Krittin Koaykul v Matic Spec | 0-6,1-6 |
| ITF Thailand F6 | 2018/10/08 03:30 | Yuttana Charoenphon v Krittin Koaykul | 6-7,2-6 |
| ITF Thailand F5 | 2018/10/02 05:05 | Kento Takeuchi v Krittin Koaykul | 6-2,6-3 |