Stadion: Court 14 Round: 45
| ITF - Japan F1 | 2017/03/11 01:00 | Hiroyasu Ehara v Takuto Niki | 2-6,1-6 |
| Challenger - Yokohama - Qualifikation | 2017/02/26 03:20 | Hiroyasu Ehara v Takuto Niki | 7-6,1-6,3-6 |
| ITF - Japan F3 | 2015/03/26 03:45 | Hiroyasu Ehara v Takuto Niki | 6-4,3-6,3-6 |
| ITF - Japan F2 | 2015/03/21 03:20 | Takuto Niki v Hiroyasu Ehara | 6-3,6-7,6-2 |
| ITF - Japan F5 | 2017/04/07 04:31 | Masato Shiga v Takuto Niki | 6-2,0-6,6-4 |
| ITF - Japan F5 | 2017/04/07 04:30 | Masato Shiga v Takuto Niki | 6-2,0-6,6-4 |
| ITF - Japan F5 | 2017/04/05 02:50 | Chan-Yeong Oh v Takuto Niki | 4-6,6-3,2-6 |
| ITF - Japan F5 | 2017/04/04 00:30 | Yuichi Ito v Takuto Niki | 3-6,4-6 |
| ITF - Japan F4 | 2017/04/02 02:00 | Takuto Niki v Yusuke Takahashi | 2-6,2-6 |
| ITF - Japan F4 | 2017/04/01 01:00 | Takuto Niki v Kaito Uesugi | 6-3,6-3 |
| ITF - Japan F4 | 2017/03/31 02:40 | Takuto Niki v Renta Tokuda | 6-2,6-7,7-5 |
| ITF - Japan F4 | 2017/03/30 03:15 | Takuto Niki v Sho Shimabukuro | 6-7,6-3,7-6 |
| ITF - Japan F5 | 2017/04/03 03:20 | Sho Shimabukuro v Hiroyasu Ehara | 6-1,6-7,6-3 |
| ITF - Japan F4 | 2017/03/29 03:40 | Hiroyasu Ehara v Sho Katayama | 2-6,4-6 |
| ITF - Japan F3 | 2017/03/22 05:30 | Nam Hoang Ly v Hiroyasu Ehara | 6-2,6-3 |
| ITF - Japan F3 | 2017/03/22 00:30 | Hiroyasu Ehara v Max Purcell | 6-3,6-2 |
| ITF - Japan F3 | 2017/03/19 01:00 | Hiroyasu Ehara v Shinta Fujii | 6-2,6-2 |
| ITF - Japan F3 | 2017/03/18 06:00 | Hiroyasu Ehara v Masaki Sasai | 6-3,6-4 |
| ITF - Japan F3 | 2017/03/18 03:00 | Hiroyasu Ehara v Kenta Kurita | 6-1,6-0 |
| ITF - Japan F2 | 2017/03/13 04:00 | Sho Katayama v Hiroyasu Ehara | 6-3,7-6 |