Stadium: 13 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Takasaki | 2024/09/16 02:25 | Naoya Honda v Kohei Hayashi | 6-1,6-2 |
| ITF M25 Sapporo | 2024/09/10 01:00 | Kohei Hayashi v Kousuke Ogura | 3-6,4-6 |
| ITF M25 Sapporo | 2024/09/09 00:50 | Kohei Hayashi v Hien Q H Pham | 7-5,7-5 |
| ITF M25 Sapporo | 2024/09/08 01:00 | Kohei Hayashi v Hiromasa Koyama | 6-2,6-4 |
| ITF M15 Tokyo | 2024/07/09 02:45 | Sho Katayama v Kohei Hayashi | 6-3,6-0 |
| ITF M15 Harmon | 2024/06/05 04:30 | Kohei Hayashi v Tatsuma Ito | 4-6,6-3,1-6 |
| ITF M15 Harmon | 2024/06/03 01:00 | Kohei Hayashi v Adrian Arcon | 3-6,6-2,10-8 |
| ITF M15 Harmon | 2024/06/02 00:00 | Kohei Hayashi v Ryoto Tachi | 7-5,4-6,10-3 |
| ITF M15 Tanagura | 2024/10/21 00:30 | Natsuki Yamamoto v Shu Muto | 4-6,6-3,4-10 |
| ITF M15 Tanagura | 2024/10/20 00:30 | Keisuke Ota v Shu Muto | 4-6,0-6 |
| ITF M15 Yanagawa | 2023/12/26 00:30 | Kazuma Kawachi v Shu Muto | 6-1,6-1 |
| ITF M15 Yanagawa | 2023/12/25 00:30 | Shu Muto v Hong-Lin Fu | 3-6,7-5,10-5 |
| ITF M15 Yanagawa | 2023/12/21 00:30 | Shu Muto v Jumpei Yamasaki | 0-6,2-6 |
| ITF M15 Yanagawa | 2023/12/20 03:00 | Shu Muto v Hong Kit Wong | 5-7,6-4,10-7 |
| ITF M15 Yanagawa | 2023/12/18 03:00 | Tomohiro Masabayashi v Shu Muto | 1-6,7-6,7-10 |