Estadio: Court 7 Round: 25 Ground: Clay
| ITF M25 Kashiwa | 2023/04/02 02:30 | Toru Horie v Hikaru Shiraishi | 6-3,5-7,4-10 |
| ITF M15 Karuizawa | 2023/05/30 02:00 | Toru Horie v Taki Adachi | 6-2,6-1 |
| ITF M15 Karuizawa | 2023/05/28 01:15 | Ryusuke Horiuchi v Toru Horie | 2-6,4-6 |
| ITF M15 Monastir | 2023/05/10 14:10 | Toru Horie v Thomas Braithwaite | 2-6,6-3,6-7 |
| ITF M15 Monastir | 2023/05/09 12:30 | Toru Horie v Zhan Zheng | 7-5,4-6,10-6 |
| ITF M15 Monastir | 2023/05/09 09:00 | Linang Xiao v Toru Horie | 3-6,1-6 |
| ITF M25 Kashiwa | 2023/04/02 02:30 | Toru Horie v Hikaru Shiraishi | 6-3,5-7,4-10 |
| ITF M25 Tsukuba | 2023/03/27 04:00 | Kazuki Nishiwaki v Toru Horie | 6-3,6-0 |
| ITF M25 Tsukuba | 2023/03/27 00:30 | Toru Horie v Taketo Takamisawa | 4-6,6-3,10-4 |
| 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 |