Stadium: Centre Court Round: 29 Ground: Hardcourt outdoor
| ITF M25 Takasaki | 2023/09/21 03:30 | Hikaru Shiraishi v Taisei Ichikawa | 6-3,6-1 |
| ITF M25 Kashiwa | 2023/04/03 05:05 | Taisei Ichikawa v Hikaru Shiraishi | 4-6,2-6 |
| ITF M15 Yanagawa | 2023/12/23 00:30 | Sanhui Shin v Taisei Ichikawa | 5-7,6-3,3-6 |
| ITF M15 Yanagawa | 2023/12/22 02:45 | Takuya Kumasaka v Taisei Ichikawa | 4-6,4-6 |
| ITF M15 Yanagawa | 2023/12/21 07:30 | Taisei Ichikawa v Yuta Kawahashi | 6-1,6-2 |
| ITF M15 Yanagawa | 2023/12/20 09:00 | Taisei Ichikawa v Wishaya Trongcharoenchaikul | 6-1,6-2 |
| ITF M25 Kalaburagi | 2023/11/29 07:10 | Sidharth Rawat v Taisei Ichikawa | 6-3,6-4 |
| ITF M25 Mumbai | 2023/11/22 03:30 | Evgeny Donskoy v Taisei Ichikawa | 6-3,6-7,6-4 |
| Challenger Kobe | 2023/11/15 03:20 | Taisei Ichikawa v Luca Nardi | 5-7,2-6 |
| ITF M25 Cairns | 2023/10/04 01:45 | Taisei Ichikawa v Taiyo Yamanaka | 2-6,1-6 |
| ITF M15 Yanagawa | 2023/12/23 01:00 | Hikaru Shiraishi v Masamichi Imamura | 6-3,6-2 |
| ITF M15 Yanagawa | 2023/12/22 04:50 | Jumpei Yamasaki v Hikaru Shiraishi | 3-6,4-6 |
| ITF M15 Yanagawa | 2023/12/21 01:50 | Kousuke Ogura v Hikaru Shiraishi | 4-6,3-6 |
| ITF M15 Yanagawa | 2023/12/20 05:00 | Ryota Tanuma v Hikaru Shiraishi | 0-6,3-6 |
| Challenger Yokkaichi | 2023/11/26 03:25 | Hikaru Shiraishi v Tatsuma Ito | 3-6,4-6 |
| ITF M15 Ipoh Perak | 2023/11/23 04:55 | Hikaru Shiraishi v Takuya Kumasaka | 6-7,4-6 |
| ITF M15 Ipoh Perak | 2023/11/23 01:00 | Hikaru Shiraishi v Corban Crowther | 6-0,6-4 |
| ITF M15 Kuching | 2023/11/17 02:00 | Hikaru Shiraishi v Woobin Shin | 6-4,7-5 |