Stadium: Royal SC Tennis - Court 03 Ground: Hardcourt outdoor
Referee:
| ITF M15 Bali | 2024/12/24 03:05 | Daisuke Sumizawa v Tomohiro Masabayashi | 4-6,7-6,2-6 |
| ITF M15 Bali Qual | 2024/12/22 08:10 | Daisuke Sumizawa v Renaldi A A Salim | 6-1,6-0 |
| ITF M25 Carrara | 2024/11/26 00:00 | Daisuke Sumizawa v Ryan Fishback | 6-7,4-6 |
| ITF M25 Caloundra | 2024/11/21 01:00 | Kody Pearson v Daisuke Sumizawa | 5-7,6-1,6-2 |
| ITF M25 Caloundra | 2024/11/19 00:00 | Daisuke Sumizawa v Thomas Braithwaite | 6-3,6-1 |
| ITF M25 Caloundra | 2024/11/18 00:00 | Daisuke Sumizawa v Rohan Hazratwala | 6-4,6-2 |
| ITF M15 Tanagura | 2024/10/25 00:30 | Ryotaro Matsumura v Daisuke Sumizawa | 6-2,6-1 |
| ITF M15 Tanagura | 2024/10/24 05:05 | Seungmin Park v Daisuke Sumizawa | 6-7,1-6 |
| ITF M25 Takasaki | 2023/09/21 03:50 | Collin Altamirano v Hiroyasu Ehara | 6-4,6-1 |
| ITF M25 Takasaki | 2023/09/19 02:30 | Hiroyasu Ehara v Yusuke Takahashi | 7-5,6-4 |
| ITF M25 Takasaki | 2023/09/18 02:40 | Yusuke Kusuhara v Hiroyasu Ehara | 6-1,4-6,6-10 |
| ITF M25 Sapporo | 2023/09/10 01:00 | Hiroki Sakagawa v Hiroyasu Ehara | 6-7,6-1,10-6 |
| ITF M25 Kashiwa | 2023/04/05 02:40 | Rimpei Kawakami v Hiroyasu Ehara | 6-0,6-0 |
| ITF M25 Kashiwa | 2023/04/03 02:30 | Hiroyasu Ehara v Naoki Tajima | 6-4,6-2 |
| ITF M25 Kashiwa | 2023/04/02 04:00 | Yuichiro Inui v Hiroyasu Ehara | 4-6,2-6 |
| ITF M15 Antalya | 2023/03/14 11:20 | Gabriele Pennaforti v Hiroyasu Ehara | 6-0,6-2 |