Round: 54 Ground: Clay
| ITF Japan F5 | 2017/04/01 01:00 | Onoda, Ken v Tomohiro Masabayashi | 3-6,6-7 |
| ITF Japan F4 | 2017/03/29 03:15 | Renta Tokuda v Tomohiro Masabayashi | 6-3,6-3 |
| ITF Japan F4 | 2017/03/28 01:00 | Ono, Yohei v Tomohiro Masabayashi | 3-6,2-6 |
| ITF Japan F4 | 2017/03/27 08:00 | Daisuke Sumizawa v Tomohiro Masabayashi | 0-6,0-6 |
| ITF Japan F4 | 2017/03/25 03:00 | Tomohiro Masabayashi v Shirafuji, Naru | 6-3,6-1 |
| ITF Japan F3 | 2017/03/18 06:00 | Tomohiro Masabayashi v Matsuo, Yuki | 1-6,2-6 |
| ITF Japan F1 | 2017/03/04 01:00 | Tomohiro Masabayashi v Fujii, Shinta | 6-3,2-6,3-6 |
| ITF Japan F8 | 2016/06/11 04:00 | Kaito Uesugi v Tomohiro Masabayashi | 6-1,6-2 |
| ITF Japan F5 | 2017/04/01 01:00 | Sakai, Yuto v Kazuki Nishiwaki | 2-6,6-7 |
| ITF Japan F4 | 2017/03/25 02:00 | Matsuo, Yuki v Kazuki Nishiwaki | 5-7,7-6,6-3 |
| ITF Japan F3 | 2017/03/19 01:00 | Sho Shimabukuro v Kazuki Nishiwaki | 6-3,7-5 |
| ITF Japan F3 | 2017/03/18 08:00 | Kazuki Nishiwaki v Cao, Zhaoyi | 6-3,6-0 |
| ITF Japan F3 | 2017/03/18 00:30 | Kazuki Nishiwaki v Itsusaki, Kaito | 6-3,6-4 |
| ITF China F3 Qual | 2017/02/26 03:40 | Tao, Jun Nan v Kazuki Nishiwaki | 6-3,6-2 |
| ITF China F3 Qual | 2017/02/25 03:00 | Kazuki Nishiwaki v Zhou, Sheng Hao | 2-6,7-6,7-5 |
| ITF China F2 Qual | 2017/02/18 02:40 | Kazuki Nishiwaki v Tao, Jun Nan | 4-6,3-6 |