Stadium: 7 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Sapporo | 2024/09/09 03:35 | Yuta Tomida v Hiroki Sakagawa | 3-6,4-6 |
| ITF M25 Sapporo | 2024/09/08 01:00 | Toki Adachi v Hiroki Sakagawa | 1-6,0-6 |
| ITF M25 Sapporo | 2024/09/03 02:00 | Hiroki Sakagawa v Shinji Hazawa | 6-7,3-6 |
| ITF M25 Sapporo | 2024/09/02 01:00 | Hiroki Sakagawa v Keisuke Ota | 6-0,6-0 |
| ITF M15 Huntsville | 2024/08/11 14:00 | Carson Baker v Hiroki Sakagawa | 7-6,6-4 |
| ITF M15 Tokyo | 2024/07/08 03:30 | Hiroki Sakagawa v Yusaku Sugaya | 4-6,5-7 |
| ITF M15 Tokyo | 2024/07/01 03:30 | Karlis Ozolins v Hiroki Sakagawa | 6-0,6-3 |
| ITF M15 San Diego | 2024/06/10 19:30 | Alexander Petrov v Hiroki Sakagawa | 6-2,6-1 |
| ITF M25 Sapporo | 2024/09/05 01:00 | Yuta Kawahashi v Shintaro Imai | 1-6,7-6,6-1 |
| ITF M25 Sapporo | 2024/09/04 00:55 | Kazuki Nishiwaki v Shintaro Imai | 4-6,6-3,5-7 |
| ITF M15 Bali | 2024/08/30 02:30 | Luca Castelnuovo v Shintaro Imai | 7-6,6-3 |
| ITF M15 Bali | 2024/08/29 04:20 | Enzo Aguiard v Shintaro Imai | 4-6,6-3,1-6 |
| ITF M15 Bali | 2024/08/28 07:10 | Lorenzo Lorusso v Shintaro Imai | 6-7,5-7 |
| ITF M15 Tokyo | 2024/07/14 04:00 | Shintaro Imai v Woobin Shin | 6-4,6-4 |
| ITF M15 Tokyo | 2024/07/13 05:30 | Ryota Tanuma v Shintaro Imai | 3-6,5-7 |
| ITF M15 Tokyo | 2024/07/12 03:40 | Sho Katayama v Shintaro Imai | 4-6,2-6 |