Round: 62 Ground: Hardcourt outdoor
| ITF China F6 Qual | 2017/05/07 01:30 | Masaki Osafune v Liran Chen | 6-3,6-3 |
| ITF China F6 Qual | 2017/05/06 04:30 | Xiao Gong v Masaki Osafune | 6-0,4-6,5-7 |
| ITF Japan F4 | 2017/03/30 03:15 | Ryota Tanuma v Masaki Osafune | 7-5,3-6,6-3 |
| ITF Japan F4 | 2017/03/28 02:00 | Masaki Osafune v Rio Noguchi | 1-6,7-6,6-3 |
| ITF Japan F4 | 2017/03/25 02:00 | Hiromasa Oku v Masaki Osafune | 1-6,0-6 |
| ITF Japan F3 | 2017/03/18 03:00 | Masaya Kobayashi v Masaki Osafune | 7-6,6-7,6-4 |
| ITF Japan F2 | 2017/03/12 02:00 | Kittiphong Wachiramanowong v Masaki Osafune | 6-3,6-4 |
| ITF Japan F2 | 2017/03/11 03:00 | Masaki Osafune v Artem Vu | 6-2,6-1 |
| ITF China F6 Qual | 2017/05/07 03:30 | Wei Cai v Kazuma Kawachi | 4-6,0-6 |
| ITF China F6 Qual | 2017/05/06 04:30 | Zuxin Zheng v Kazuma Kawachi | 4-6,6-3,2-6 |
| ITF Indonesia F5 Qual | 2017/04/01 07:10 | Panji Untung Setiawan v Kazuma Kawachi | 6-2,6-2 |
| ITF Indonesia F4 Qual | 2017/03/27 05:05 | Roy Hobbs v Kazuma Kawachi | 6-2,6-0 |
| ITF Indonesia F4 Qual | 2017/03/25 09:35 | Kevin Lynch v Kazuma Kawachi | 6-7,6-3,3-6 |
| ITF Australia F3 Qual | 2017/03/19 01:30 | Richard Yang v Kazuma Kawachi | 6-4,4-6,6-3 |
| ITF Australia F2 | 2017/03/16 00:30 | Rubin Statham v Kazuma Kawachi | 6-1,6-0 |
| ITF Australia F2 | 2017/03/15 00:30 | Kazuma Kawachi v Socrates Leon Tsoronis | 0-6,6-4,6-4 |