Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2023/04/18 12:45 | Bogdan Bobrov v Kazuma Kawachi | 6-2,6-3 |
| ITF M15 Monastir | 2023/04/12 08:30 | Kazuma Kawachi v Koray Kirci | 1-6,1-6 |
| ITF M25 Kashiwa | 2023/04/05 01:00 | Kazuma Kawachi v Hiroki Moriya | 4-6,2-6 |
| ITF M25 Kashiwa | 2023/04/03 02:30 | Kazuma Kawachi v Shohei Chikami | 7-6,6-4 |
| ITF M15 Heraklion | 2023/03/14 11:15 | Kazuma Kawachi v Orel Kimhi | 7-6,5-7,0-6 |
| ITF M15 Aktobe | 2023/03/09 05:00 | Kazuma Kawachi v Arslanbek Aitkulov | 4-6,3-6 |
| ITF M15 Aktobe | 2023/03/07 11:40 | Kazuma Kawachi v Gabriele Maria Noce | 6-3,6-3 |
| ITF M15 Aktobe | 2023/03/03 05:15 | Evgeny Philippov v Kazuma Kawachi | 6-4,6-2 |
| ITF M15 Monastir | 2023/05/17 12:35 | Robin Bertrand v Hikaru Shiraishi | 7-5,2-6,6-4 |
| ITF M15 Monastir | 2023/05/16 08:00 | Hikaru Shiraishi v Antoni Fabre | 7-6,6-3 |
| ITF M15 Monastir | 2023/05/15 12:30 | Hikaru Shiraishi v Hillel Rousseau | 6-4,6-3 |
| ITF M15 Monastir | 2023/05/14 08:30 | Hikaru Shiraishi v Mehdi Benchakroun | 6-1,6-3 |
| ITF M15 Monastir | 2023/05/10 10:40 | Hikaru Shiraishi v Eliakim Coulibaly | 6-0,6-7,4-6 |
| ITF M15 Monastir | 2023/05/05 09:55 | Hikaru Shiraishi v Omni Kumar | 5-7,5-7 |
| ITF M15 Monastir | 2023/05/04 10:20 | Hikaru Shiraishi v Michal Mikula | 7-6,6-1 |
| ITF M15 Monastir | 2023/05/02 11:20 | Alessandro Coccioli v Hikaru Shiraishi | 3-6,2-6 |