| ITF China F7 | 05/29 02:00 | 25 | Ehara, Hiroyasu v Jie Cui | 6-4,6-2 | |
| Challenger Busan Qual | 05/13 03:25 | 46 | [338] Ehara, Hiroyasu v Blake Ellis [499] | 6-7,6-3,3-6 | |
| Challenger Gimcheon Qual | 05/06 04:30 | 46 | Ehara, Hiroyasu v Makoto Ochi | 7-6,3-6,4-6 | |
| ITF Japan F6 | 04/15 04:00 | 29 | [368] Ehara, Hiroyasu v Renta Tokuda [399] | 0-6,6-7 | |
| ITF Japan F6 | 04/14 01:00 | 28 | Kazuki Nishiwaki v Ehara, Hiroyasu | 2-6,6-7 | |
| ITF Japan F6 | 04/13 01:00 | 27 | [368] Ehara, Hiroyasu v Sora Fukuda [422] | 7-6,6-2 | |
| ITF Japan F6 | 04/12 01:00 | 26 | Ehara, Hiroyasu v Yuta Shimizu | 5-7,7-6,6-1 | |
| ITF Japan F6 Qual | 04/11 01:00 | 25 | Ehara, Hiroyasu v Nakashima, Hajime | 6-1,6-2 | |
| ITF Japan F5 | 04/06 03:00 | 28 | [367] Ehara, Hiroyasu v Yusuke Takahashi [267] | Retired | |
| ITF Japan F5 | 04/05 02:00 | 27 | [401] Shintaro Imai v Ehara, Hiroyasu [367] | 3-6,5-7 | |
| ITF Japan F5 | 04/04 01:00 | 26 | [280] Niki, Takuto v Ehara, Hiroyasu [367] | 2-6,6-2,4-6 | |
| ITF Japan F5 | 04/02 04:10 | 25 | Matsuo, Yuki v Ehara, Hiroyasu | 2-6,2-6 | |
| ITF Japan F4 | 03/30 01:00 | 27 | Ryota Tanuma v Ehara, Hiroyasu | 6-3,4-6,6-4 | |
| ITF Japan F4 | 03/29 01:00 | 26 | Makoto Ochi v Ehara, Hiroyasu | 6-4,5-7,4-6 | |
| ITF Japan F4 | 03/28 03:00 | 25 | Liu, Shao-Fan v Ehara, Hiroyasu | 1-6,5-7 | |
| ITF Japan F3 | 03/22 04:45 | 26 | Tung-Lin Wu v Ehara, Hiroyasu | 6-4,7-6 | |
| ITF Japan F3 | 03/19 01:00 | 25 | Tamaki Yamao v Ehara, Hiroyasu | 6-2,3-6,0-6 | |
| ITF Japan F2 | 03/13 02:10 | 25 | Yuta Shimizu v Ehara, Hiroyasu | 7-6,6-3 | |
| Challenger Yokohama | 03/01 03:35 | 26 | Jordan Thompson v Ehara, Hiroyasu | 6-4,6-2 | |
| Challenger Yokohama | 02/27 06:50 | 25 | Ehara, Hiroyasu v Whittington, Andrew | 7-6,6-7,6-4 | |
| Yokohama, Japan, Qualifying | 02/26 01:00 | 54 | Zhe Li v Ehara, Hiroyasu | 6-7,6-3,4-6 | |
| Yokohama, Japan, Qualifying | 02/25 01:00 | 46 | Tung-Lin Wu v Ehara, Hiroyasu | 5-7,3-6 | |
| Yokohama, Japan, Qualifying | 02/24 03:45 | 45 | Margaroli, Luca v Ehara, Hiroyasu | 1-6,2-6 | |
| Challenger Kyoto Qual | 02/18 04:50 | 46 | Ehara, Hiroyasu v Luke Saville | 6-7,3-6 | |
| Challenger Kyoto Qual | 02/17 04:45 | 45 | Ehara, Hiroyasu v Shirafuji, Naru | 7-5,6-2 | |
| ITF Egypt F3 | 02/03 14:30 | 28 | Pedro Martinez v Ehara, Hiroyasu | 6-2,6-2 | |
| ITF Egypt F3 | 02/02 15:00 | 27 | Ehara, Hiroyasu v Erler, Alexander | 6-2,3-6,6-1 | |
| ITF Egypt F3 | 02/01 15:00 | 26 | Ehara, Hiroyasu v Vit Kopriva | 7-6,3-6,7-5 | |
| ITF Egypt F3 | 01/30 14:00 | 25 | Ehara, Hiroyasu v Slobodchikov, Ronald | 6-2,6-2 | |
| ITF Egypt F2 | 01/24 09:25 | 25 | Barbosa, Romain v Ehara, Hiroyasu | 7-6,6-4 |