Ground: Hardcourt outdoor
| ITF - M25 - Takasaki | 2023/09/21 02:00 | Ryotaro Matsumura v Sora Fukuda | 1-6,1-6 |
| ITF - M25 - Takasaki | 2023/09/20 01:00 | Ryotaro Matsumura v Toru Horie | 6-0,5-7,7-6 |
| ITF - M25 - Takasaki | 2023/09/18 00:50 | Ryotaro Matsumura v Natsuki Yamamoto | 6-2,6-1 |
| ITF - M25 - Takasaki | 2023/09/17 01:00 | Ryotaro Matsumura v Seiya Nakanishi | 6-2,6-4 |
| ITF - M25 - Sapporo | 2023/09/10 03:00 | Ryotaro Matsumura v Yuta Tomida | 6-3,6-7,9-11 |
| ITF - M25 - Sapporo | 2023/09/08 01:00 | Sora Fukuda v Ryotaro Matsumura | 4-6,6-3,6-4 |
| ITF - M25 - Sapporo | 2023/09/07 03:00 | Ryotaro Matsumura v Tatsuma Ito | 7-6,6-4 |
| UTR Pro - Noda | 2023/08/26 04:45 | Naoya Honda v Ryotaro Matsumura | 6-2,6-1 |
| 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 |