Stadium: CPK Round: 26 Ground: Hardcourt outdoor
| ITF M15 Nakhon Si Thammarat | 2023/07/05 07:50 | Kokoro Isomura v Kazuma Kawachi | 6-4,6-3 |
| ITF M15 Harmon | 2024/06/05 07:15 | Kazuma Kawachi v Ko Suzuki | 6-3,6-3 |
| ITF M15 Karuizawa | 2024/05/29 03:00 | Kazuma Kawachi v Masamichi Imamura | 4-6,4-6 |
| ITF M25 Addis Ababa | 2024/05/23 07:20 | Kazuma Kawachi v Eliakim Coulibaly | 0-6,3-6 |
| ITF M25 Addis Ababa | 2024/05/22 05:55 | Julian Desousa v Kazuma Kawachi | 1-6,6-2,6-7 |
| ITF M15 Addis Ababa | 2024/05/16 08:15 | Kazuma Kawachi v S D Prajwal Dev | 3-6,2-6 |
| ITF M15 Addis Ababa | 2024/05/15 10:40 | Guelfo Baldovinetti v Kazuma Kawachi | 6-1,1-6,2-6 |
| ITF M15 Monastir | 2024/05/08 13:50 | Kazuma Kawachi v Tai Leonard Sach | 3-6,4-6 |
| UTR Pro Suita | 2024/04/28 00:30 | Yuta Kikuchi v Kazuma Kawachi | 1-6,3-6 |
| ITF M15 Harmon | 2024/06/05 06:15 | Woobin Shin v Kokoro Isomura | 6-3,3-6,6-7 |
| ITF M15 Karuizawa | 2024/05/30 02:50 | Kokoro Isomura v Yusaku Sugaya | 4-6,6-1,6-7 |
| ITF M15 Karuizawa | 2024/05/29 02:00 | Kokoro Isomura v Naoki Tajima | 6-2,6-1 |
| ITF M15 Antalya | 2024/05/02 08:40 | Kokoro Isomura v Arthur Reymond | 2-6,2-6 |
| ITF M15 Antalya | 2024/05/01 10:05 | Kokoro Isomura v Marsel Ilhan | 7-6,6-4 |
| ITF M15 Antalya | 2024/04/26 07:30 | Kokoro Isomura v Yanaki Milev | 3-6,5-7 |
| ITF M15 Antalya | 2024/04/25 07:00 | Kokoro Isomura v Cengiz Aksu | 6-4,6-2 |
| ITF M15 Antalya | 2024/04/23 08:50 | Kokoro Isomura v Vit Kalina | 6-0,6-2 |