Stadium: Court 16 Round: 25 Ground: Clay
| ITF Japan F5 | 2018/04/05 02:00 | Shintaro Imai v Hiroyasu Ehara | 3-6,5-7 |
| ITF Japan F5 | 2018/04/04 01:00 | Takuto Niki v Hiroyasu Ehara | 2-6,6-2,4-6 |
| ITF Japan F5 | 2018/04/02 04:10 | Yuki Matsuo v Hiroyasu Ehara | 2-6,2-6 |
| ITF Japan F4 | 2018/03/30 01:00 | Ryota Tanuma v Hiroyasu Ehara | 6-3,4-6,6-4 |
| ITF Japan F4 | 2018/03/29 01:00 | Makoto Ochi v Hiroyasu Ehara | 6-4,5-7,4-6 |
| ITF Japan F4 | 2018/03/28 03:00 | Shao-Fan Liu v Hiroyasu Ehara | 1-6,5-7 |
| ITF Japan F3 | 2018/03/22 04:45 | Tung-Lin Wu v Hiroyasu Ehara | 6-4,7-6 |
| ITF Japan F3 | 2018/03/19 01:00 | Tamaki Yamao v Hiroyasu Ehara | 6-2,3-6,0-6 |
| ITF Japan F6 Qual | 2018/04/09 02:30 | Yuichi Ito v Hajime Nakashima | 1-6,1-6 |
| ITF Japan F6 Qual | 2018/04/08 01:00 | Hajime Nakashima v Masaki Sasai | 6-2,6-1 |