Stadium: Court 1 Round: 25 Ground: Clay
| ITF M15 Kashiwa | 2024/04/04 01:30 | Daisuke Sumizawa v Keisuke Saitoh | 5-7,2-6 |
| ITF M15 Kashiwa | 2024/04/02 05:00 | Daisuke Sumizawa v Koki Matsuda | 6-3,3-6,6-3 |
| ITF M15 Kashiwa | 2024/04/01 02:40 | Daisuke Sumizawa v Naoki Tajima | 4-6,6-1,10-8 |
| ITF M15 Kashiwa | 2024/03/31 01:00 | Daisuke Sumizawa v Tomohiro Masabayashi | 6-4,6-7,10-5 |
| ITF M15 Tsukuba | 2024/03/28 04:15 | Daisuke Sumizawa v Stefanos Sakellaridis | 3-6,6-3,1-6 |
| 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 Kursumlijska Banja | 2024/04/25 16:35 | Sergej Zivkovic v Luka Pavlovic | 3-6,3-6 |
| ITF M15 Kursumlijska Banja | 2024/04/16 10:50 | Dusan Obradovic v Sergej Zivkovic | 6-2,6-3 |