Round: 54 Ground: Synthetic outdoor
| ITF Japan F5 | 2017/04/04 04:40 | Tatsuma Ito v Katsuki Nagao | 7-6,6-4 |
| ITF Japan F5 | 2017/04/01 02:00 | Katsuki Nagao v Kazuki Shimizu | 6-3,6-3 |
| ITF Japan F4 | 2017/03/28 01:00 | Katsuki Nagao v Shunrou Takeshima | 2-6,2-6 |
| ITF Japan F4 | 2017/03/26 00:59 | Katsuki Nagao v Nasa Hatakeyama | 6-2,6-3 |
| ITF Japan F4 | 2017/03/25 01:00 | Katsuki Nagao v Ryohei Tagata | 2-6,6-2,6-0 |
| ITF Japan F3 | 2017/03/19 01:00 | Jeamoon Lee v Katsuki Nagao | 7-6,6-4 |
| ITF Japan F3 | 2017/03/18 08:00 | Masamichi Imamura v Katsuki Nagao | 2-6,1-6 |
| ITF Japan F3 | 2017/03/18 05:00 | Ryohei Tagata v Katsuki Nagao | 3-6,3-6 |
| ITF Japan F5 | 2017/04/02 01:00 | Koichi Sano v Rimpei Kawakami | 6-1,6-2 |
| ITF Japan F5 | 2017/04/01 02:00 | Rimpei Kawakami v Daisuke Sumizawa | 7-5,6-4 |
| ITF Japan F3 | 2017/03/22 02:05 | Hong Chung v Rimpei Kawakami | 6-2,3-6,6-2 |
| ITF Japan F3 | 2017/03/19 01:00 | Arata Onozawa v Rimpei Kawakami | 3-6,6-2,2-6 |
| ITF Japan F3 | 2017/03/18 06:00 | Rimpei Kawakami v Wei-De Lin | 6-2,6-2 |
| ITF Japan F3 | 2017/03/18 00:30 | Rimpei Kawakami v Rio Noguchi | 6-4,7-6 |
| ITF Vietnam F4 | 2016/09/13 03:00 | Zhaoyi Cao v Rimpei Kawakami | 6-4,7-5 |
| ITF Vietnam F4 | 2016/09/11 03:00 | Ahmed Deedat Abdul Razak v Rimpei Kawakami | 2-6,0-6 |