Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF M15 - Tsukuba | 2024/03/27 04:15 | Ryotaro Shimomura v Daisuke Sumizawa | 6-4,3-6,4-6 |
| ITF M15 - Tsukuba | 2024/03/25 06:00 | Daisuke Sumizawa v Masamichi Imamura | 6-3,6-4 |
| ITF M15 - Tsukuba | 2024/03/24 01:00 | Daisuke Sumizawa v Linghao Zhang | 7-5,6-1 |
| ITF M15 - Hinode | 2024/03/13 05:40 | Hikaru Shiraishi v Daisuke Sumizawa | 6-1,7-6 |
| UTR Pro Kawaguchi | 2024/03/02 03:00 | Ryotaro Matsumura v Daisuke Sumizawa | 6-2,7-5 |
| ITF M15 - Yanagawa | 2023/12/20 07:45 | Daisuke Sumizawa v Koki Matsuda | 5-7,3-6 |
| ITF M25 - Gold Coast | 2023/11/29 01:55 | Daisuke Sumizawa v Matthew Dellavedova | 6-7,4-6 |
| ITF M25 - Brisbane | 2023/11/22 03:50 | Daisuke Sumizawa v Emile Hudd | 2-6,2-6 |
| ITF M15 - Tsukuba | 2024/03/27 07:45 | Tianhui Zhang v Stefanos Sakellaridis | 4-6,2-6 |
| ITF M15 - Nishi-Tokyo | 2024/03/23 04:20 | Stefanos Sakellaridis v Duckhee Lee | 6-7,6-2,5-7 |
| ITF M15 - Nishi-Tokyo | 2024/03/22 01:00 | Leo Vithoontien v Stefanos Sakellaridis | 2-6,7-6,6-7 |
| ITF M15 - Nishi-Tokyo | 2024/03/21 02:55 | Seungmin Park v Stefanos Sakellaridis | 2-6,3-6 |
| ITF M15 - Nishi-Tokyo | 2024/03/20 06:50 | Koki Matsuda v Stefanos Sakellaridis | 7-5,6-7,4-6 |
| ITF M15 - Hinode | 2024/03/17 02:00 | Yan Bai v Stefanos Sakellaridis | 6-2,6-4 |
| ITF M15 - Hinode | 2024/03/16 01:30 | Hikaru Shiraishi v Stefanos Sakellaridis | 7-6,5-7,3-6 |
| ITF M15 - Hinode | 2024/03/15 01:00 | Kousuke Ogura v Stefanos Sakellaridis | 4-6,5-7 |