Round: 62 Ground: Hardcourt outdoor
| ITF Japan F3 | 2017/03/18 00:30 | Yuki Matsuo v Koichi Sano | 6-4,7-6 |
| ITF Japan F2 | 2017/03/14 06:05 | Gengo Kikuchi v Koichi Sano | 6-2,6-4 |
| ITF Japan F2 | 2017/03/13 01:00 | Collin Johns v Koichi Sano | 5-7,6-4,4-6 |
| ITF Japan F2 | 2017/03/12 03:00 | Kaito Itsusaki v Koichi Sano | 6-7,1-6 |
| ITF Japan F1 | 2017/03/05 01:00 | Koichi Sano v Yuga Tashiro | 2-6,4-6 |
| ITF Vietnam F8 | 2016/09/18 03:00 | Koichi Sano v Shinta Fujii | 4-6,3-6 |
| ITF Vietnam F4 | 2016/09/12 03:00 | Arata Onozawa v Koichi Sano | 2-6,7-6,6-0 |
| ITF China F13 | 2016/07/20 02:30 | Issei Okamura v Koichi Sano | 6-0,6-2 |
| ITF Japan F3 | 2017/03/18 00:30 | Collin Johns v Yohei Ono | 7-5,6-2 |
| ITF Japan F1 | 2017/03/06 01:00 | Yohei Ono v Shinta Fujii | 5-7,5-7 |
| ITF Japan F1 | 2017/03/05 01:00 | Yohei Ono v Yohei Otsuka | 6-3,6-3 |
| ITF Japan F1 | 2017/03/04 01:00 | Collin Johns v Yohei Ono | 3-6,6-4,5-7 |
| ITF Japan F3 | 2015/03/23 01:00 | Akira Santillan v Yohei Ono | 6-3,6-0 |
| ITF Japan F3 | 2015/03/22 01:00 | Tetsuro Habusawa v Yohei Ono | 1-6,2-6 |
| ITF Japan F2 | 2015/03/15 01:00 | Yohei Ono v Soichiro Moritani | 6-2,2-6,2-6 |
| ITF Japan F1 | 2015/03/09 00:40 | Yohei Ono v Ken Onishi | 2-6,1-6 |