Stadium: Court 6 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Zahra | 2023/12/06 10:30 | Alastair Gray v Kousuke Ogura | 6-3,3-6,6-3 |
| ITF M15 Al Zahra | 2023/11/29 08:45 | Kousuke Ogura v Aleksandre Bakshi | 1-6,3-6 |
| ITF M15 Santo Domingo | 2023/11/17 15:00 | Roberto Cid Subervi v Kousuke Ogura | 6-3,6-1 |
| ITF M15 Santo Domingo | 2023/11/16 13:30 | Marcel Kamrowski v Kousuke Ogura | 3-6,0-6 |
| ITF M15 Santo Domingo | 2023/11/14 15:30 | Mwendwa Mbithi v Kousuke Ogura | 6-1,4-6,4-6 |
| ITF M15 Santo Domingo | 2023/11/08 16:30 | Kousuke Ogura v Evan Bynoe | 6-1,2-6,2-6 |
| ITF M25 Sapporo | 2023/09/15 03:20 | Kousuke Ogura v Kazuki Nishiwaki | 4-6,7-5,2-6 |
| ITF M25 Sapporo | 2023/09/12 07:10 | Sanhui Shin v Kousuke Ogura | 7-5,4-6,6-7 |
| 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 |
| ITF M15 Kuching | 2023/11/16 05:35 | Hikaru Shiraishi v Jumpei Yamasaki | 7-5,6-1 |
| ITF M15 Kuching | 2023/11/14 03:00 | Hikaru Shiraishi v Sheng Tang | 6-1,6-4 |
| ITF M25 Cairns | 2023/10/13 01:00 | Jake Delaney v Hikaru Shiraishi | 6-3,6-7,7-6 |