Round: 62 Ground: Hardcourt outdoor
| 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 F1 | 2017/03/06 01:00 | Katsuki Nagao v Sho Shimabukuro | 3-6,6-7 |
| ITF Japan F1 | 2017/03/05 01:00 | Katsuki Nagao v Yuichiro Inui | 6-3,6-2 |
| ITF Japan F1 | 2017/03/04 03:30 | Katsuki Nagao v Leo Julien Sebaoun | 2-6,6-3,6-3 |
| ITF Korea F8 | 2016/09/06 04:00 | Katsuki Nagao v Keisuke Numajiri | 6-3,4-6,0-6 |
| ITF Japan F4 | 2017/03/25 00:00 | Nasa Hatakeyama v Shin Yoshida | 6-2,6-2 |
| Challenger Yokohama Qual | 2017/02/26 01:00 | Brydan Klein v Nasa Hatakeyama | 6-3,6-3 |
| Challenger Yokohama Qual | 2017/02/25 01:00 | Xin Gao v Nasa Hatakeyama | 4-6,6-7 |
| ITF Japan F6 | 2016/05/31 02:25 | Nasa Hatakeyama v Yuichi Ito | 2-6,2-6 |
| ITF Japan F3 | 2016/03/19 00:30 | Ryota Kishi v Nasa Hatakeyama | 6-2,6-3 |
| ITF Japan F8 | 2015/06/23 01:00 | Nasa Hatakeyama v Makoto Ochi | 4-6,2-6 |