Round: 26 Ground: Hardcourt outdoor
| ITF Japan F1 | 2016/03/08 01:00 | Sho Katayama v Yuichi Ito | 6-3,4-6,6-2 |
| ITF Japan F1 | 2017/03/07 02:30 | Naru Shirafuji v Yuichi Ito | 2-6,6-2,3-6 |
| Challenger Kyoto Qual | 2017/02/18 04:55 | Alex Bolt v Yuichi Ito | 6-2,6-0 |
| ITF Turkey F5 | 2017/02/08 08:00 | Yuichi Ito v Peter Bothwell | 3-6,4-6 |
| ITF Turkey F5 | 2017/02/06 09:30 | Benjamin Lock v Yuichi Ito | 4-6,4-6 |
| ITF Turkey F4 | 2017/01/30 07:00 | Yuichi Ito v Mircea-Alexandru Jecan | 6-3,3-6,5-7 |
| ITF Thailand F5 | 2016/12/21 05:25 | Daniel Altmaier v Yuichi Ito | 6-3,6-4 |
| ITF Thailand F5 | 2016/12/19 03:00 | Rishab Agarwal v Yuichi Ito | 3-6,5-7 |
| ITF Thailand F4 | 2016/12/13 04:35 | Yuichi Ito v Jeamoon Lee | 2-6,3-6 |
| ITF Japan F1 | 2017/03/07 01:00 | Sho Katayama v Xin Gao | 6-2,6-4 |
| ITF Indonesia F3 | 2017/02/24 03:00 | Sho Katayama v Sho Shimabukuro | 6-7,1-6 |
| ITF Indonesia F3 | 2017/02/23 03:00 | Sho Katayama v Chan-Yeong Oh | 7-6,7-6 |
| ITF Indonesia F3 | 2017/02/22 05:40 | Sho Katayama v Robin Thour | 6-3,6-2 |
| ITF Indonesia F2 | 2017/02/18 05:55 | Sho Katayama v Dayne Kelly | 4-6,6-7 |
| ITF Indonesia F2 | 2017/02/17 05:45 | Sho Katayama v Masato Shiga | 6-4,7-6 |
| ITF Indonesia F2 | 2017/02/16 05:20 | Wishaya Trongcharoenchaikul v Sho Katayama | 2-6,3-6 |
| ITF Indonesia F2 | 2017/02/15 06:25 | Sho Katayama v Soichiro Moritani | 6-2,6-3 |