Stadium: Court 8 Round: 26 Ground: Hardcourt outdoor
| ITF Japan F6 | 2014/06/11 00:30 | Kazuma Kawachi v Takuto Niki | 2-6,5-7 |
| ITF M15 Singapur | 2019/05/28 02:00 | Kazuma Kawachi v Timothy Lim | 6-0,6-1 |
| ITF M15 Tabarka | 2019/05/16 10:00 | Kazuma Kawachi v Juan Ignacio Alcalde | 6-7,3-6 |
| ITF M15 Tabarka | 2019/05/15 09:55 | Aziz Ouakaa v Kazuma Kawachi | 2-6,6-0,1-6 |
| ITF M15 Tabarka | 2019/05/08 09:40 | Kazuma Kawachi v Ken Onishi | 7-6,5-7,0-6 |
| ITF M15 Tabarka | 2019/05/02 08:30 | Kazuma Kawachi v Rafael Matos | 4-6,4-6 |
| ITF M15 Tabarka | 2019/04/30 10:10 | Juan P Canas Garcia v Kazuma Kawachi | 2-6,4-6 |
| ITF M25 Matsuyama | 2019/04/09 01:00 | Kazuma Kawachi v Tomohiro Masabayashi | 5-7,6-4,3-10 |
| ITF M15 Mornington | 2019/03/28 00:50 | Rinky Hijikata v Kazuma Kawachi | 6-1,6-4 |
| ITF M15 Singapur | 2019/05/29 02:00 | Jatin Dahiya v Takuto Niki | 1-6,4-6 |
| ITF M25 Luan | 2019/05/17 06:30 | Wishaya Trongcharoenchaikul v Takuto Niki | 7-6,4-6,7-6 |
| ITF M25 Luan | 2019/05/16 03:30 | Kento Takeuchi v Takuto Niki | 4-6,7-6,1-6 |
| ITF M25 Luan | 2019/05/15 02:00 | Cheng-Yu Yu v Takuto Niki | 4-6,6-3,3-6 |
| ITF M25 Wuhan | 2019/05/09 02:00 | Takuto Niki v Fajing Sun | 6-7,3-6 |
| ITF M25 Wuhan | 2019/05/08 02:00 | Cheng-Yu Yu v Takuto Niki | 4-6,7-6,3-6 |
| ITF M25 Matsuyama | 2019/04/14 04:15 | Takuto Niki v Shuichi Sekiguchi | 4-6,4-6 |
| ITF M25 Matsuyama | 2019/04/13 03:00 | Takuto Niki v Wishaya Trongcharoenchaikul | 7-5,6-3 |