Round: 25 Ground: Hardcourt outdoor
| ITF - Japan F4 | 2017/03/28 01:00 | Chan-Yeong Oh v Yuki Matsuo | 6-1,6-1 |
| ITF - Japan F4 | 2017/03/25 02:00 | Chan-Yeong Oh v Hayato Kudo | 6-3,6-3 |
| ITF - Japan F3 | 2017/03/23 01:00 | Shane Vinsant v Chan-Yeong Oh | 6-2,3-6,6-3 |
| ITF - Japan F3 | 2017/03/22 03:00 | Chan-Yeong Oh v Soichiro Moritani | 6-3,3-6,6-4 |
| ITF - Japan F3 | 2017/03/20 01:00 | Masaya Kobayashi v Chan-Yeong Oh | 4-6,2-6 |
| ITF - Japan F3 | 2017/03/19 01:00 | Chan-Yeong Oh v Naoya Maesaki | 6-2,6-4 |
| ITF - Japan F3 | 2017/03/18 08:00 | Chan-Yeong Oh v Yuki Nakamura | 6-3,1-6,7-5 |
| ITF - Japan F3 | 2017/03/18 03:00 | Chan-Yeong Oh v Ibuki Furuta | 7-6,6-1 |
| ITF - Japan F3 | 2017/03/20 02:55 | Kaito Uesugi v Yuichi Ito | 7-5,3-6,6-2 |
| ITF - Japan F2 | 2017/03/14 02:30 | Liang-Chi Huang v Yuichi Ito | 6-2,7-5 |
| ITF - Japan F1 | 2017/03/09 02:25 | Yuichi Ito v Sho Katayama | 0-6,0-6 |
| ITF - Japan F1 | 2017/03/07 02:30 | Naru Shirafuji v Yuichi Ito | 2-6,6-2,3-6 |
| Challenger - Kyoto - Qualifikation | 2017/02/18 04:55 | Alex Bolt v Yuichi Ito | 6-2,6-0 |
| ITF - Türkei F5 | 2017/02/08 08:00 | Yuichi Ito v Peter Bothwell | 3-6,4-6 |
| ITF - Türkei F5 | 2017/02/06 09:30 | Benjamin Lock v Yuichi Ito | 4-6,4-6 |
| ITF - Türkei F4 | 2017/01/30 07:00 | Yuichi Ito v Mircea-Alexandru Jecan | 6-3,3-6,5-7 |