Stadium: Court 5 Round: 54 Ground: Hardcourt outdoor
| Challenger Matsuyama | 2022/11/07 05:25 | Yusuke Kusuhara v Hiroki Moriya | 1-6,1-6 |
| ITF M25 Sapporo | 2022/09/07 00:30 | Rio Noguchi v Yusuke Kusuhara | 6-0,6-1 |
| ITF M15 Monastir | 2023/03/10 08:30 | Florent Bax v Hikaru Shiraishi | 6-4,6-2 |
| ITF M15 Monastir | 2023/03/09 08:30 | Hikaru Shiraishi v Stefanos Sakellaridis | 7-6,6-1 |
| ITF M15 Monastir | 2023/03/08 13:00 | Ryuki Matsuda v Hikaru Shiraishi | 3-6,3-6 |
| ITF M15 Monastir | 2023/03/06 15:40 | Hikaru Shiraishi v Jack Loge | 6-4,6-0 |
| ITF M15 Monastir | 2023/03/06 10:00 | Hikaru Shiraishi v Pietro Marino | 7-6,6-7,10-3 |
| ITF M15 Monastir | 2023/03/05 10:30 | Hikaru Shiraishi v Josh Roe Flannelly | 1-6,0-6 |
| ITF M15 Monastir | 2023/03/03 10:00 | Hikaru Shiraishi v Adrien Gobat | 2-6,6-3,3-6 |
| ITF M15 Monastir | 2023/03/02 10:10 | Hikaru Shiraishi v Jie Cui | 7-5,6-3 |