Round: 44 Ground: Hardcourt outdoor
| 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 China F13 | 2016/07/19 04:00 | Koichi Sano v Xi Qi | 6-2,7-6 |
| ITF China F12 | 2016/07/13 02:30 | Soichiro Moritani v Koichi Sano | 6-7,6-4,6-1 |
| ITF China F12 | 2016/07/12 02:30 | Zihao Xia v Koichi Sano | 6-7,3-6 |
| ITF Japan F8 | 2016/06/13 01:00 | Koichi Sano v Kaito Uesugi | 2-6,4-6 |
| ITF Japan F8 | 2016/06/11 01:00 | Koichi Sano v Yuga Tashiro | 6-3,7-5 |
| ITF Japan F7 | 2016/06/09 02:00 | Koichi Sano v Sho Katayama | 6-3,2-6,1-6 |
| ITF Vietnam F8 | 2016/09/17 03:00 | Amer Naow v Shinta Fujii | 3-6,2-6 |
| ITF Vietnam F4 | 2016/09/13 08:05 | Nam Hoang Ly v Shinta Fujii | 6-3,6-4 |
| ITF Vietnam F4 | 2016/09/11 04:00 | Shinta Fujii v Woo-Ram Kim | 6-7,6-3,6-0 |
| ITF Japan F6 Qual | 2015/06/07 03:30 | Shinta Fujii v Renta Tokuda | 3-6,2-6 |
| ITF Japan F5 | 2015/05/30 01:00 | Ryotaro Matsumura v Shinta Fujii | 6-3,6-1 |
| ITF Japan F4 | 2015/03/31 04:05 | Shinta Fujii v Kento Takeuchi | 3-6,6-3,6-7 |
| ITF Japan F4 | 2015/03/30 01:00 | Jarryd Chaplin v Shinta Fujii | 3-6,6-7 |
| ITF Japan F4 | 2015/03/29 00:00 | Ibuki Furuta v Shinta Fujii | 4-6,6-4,6-7 |