Stadium: Court 2 Round: 25 Ground: Clay
| ITF Japan F4 | 2018/03/26 01:00 | Ryota Tanuma v Yuki Matsuo | 6-2,6-1 |
| ITF Japan F4 | 2018/03/25 01:00 | Yuki Matsuo v Masamichi Imamura | 6-3,6-0 |
| ITF Japan F2 | 2018/03/11 04:00 | Jack Murray v Yuki Matsuo | 6-1,6-4 |
| ITF Japan F1 | 2018/03/05 01:00 | Jack Murray v Yuki Matsuo | 6-1,6-1 |
| ITF Japan F1 | 2018/03/03 03:00 | Hayato Kudo v Yuki Matsuo | 2-6,2-6 |
| ITF Vietnam F3 | 2017/11/20 03:00 | Yuki Matsuo v Tsung-Hao Huang | 2-6,3-6 |
| ITF Vietnam F2 | 2017/11/12 05:00 | Cesar Testoni v Yuki Matsuo | 6-3,3-6,6-4 |
| ITF Japan F8 | 2017/06/14 04:00 | Gengo Kikuchi v Yuki Matsuo | 6-0,6-4 |
| 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 F2 | 2018/03/13 02:10 | Yuta Shimizu v Hiroyasu Ehara | 7-6,6-3 |
| Challenger - Yokohama | 2018/03/01 03:35 | Jordan Thompson v Hiroyasu Ehara | 6-4,6-2 |
| Challenger - Yokohama | 2018/02/27 06:50 | Hiroyasu Ehara v Andrew Whittington | 7-6,6-7,6-4 |