| ITF Japan F6 Qual | 2017/05/27 01:00 | Naru Shirafuji v Yuga Tashiro | 4-6,6-1,4-6 |
| ITF Japan F5 | 2017/04/01 02:00 | Yuga Tashiro v Takao Suzuki | 1-6,4-6 |
| ITF Japan F4 | 2017/03/27 01:00 | Yuga Tashiro v Keisuke Watanuki | 2-6,6-7 |
| ITF Japan F4 | 2017/03/25 03:00 | Takumi Kato v Yuga Tashiro | 5-7,3-6 |
| ITF Japan F3 | 2017/03/18 08:00 | Yunosuke Tanaka v Yuga Tashiro | 6-2,6-1 |
| ITF Japan F3 | 2017/03/18 03:00 | Yuga Tashiro v Hiromasa Oku | 6-3,6-2 |
| ITF Japan F1 | 2017/03/06 01:00 | Yuga Tashiro v Rio Noguchi | 2-6,4-6 |
| ITF Japan F1 | 2017/03/05 01:00 | Koichi Sano v Yuga Tashiro | 2-6,4-6 |
| ITF Japan F6 Qual | 2017/05/27 01:00 | Yuichiro Inui v Daisuke Sumizawa | 2-6,3-6 |
| ITF Japan F5 | 2017/04/01 02:00 | Rimpei Kawakami v Daisuke Sumizawa | 7-5,6-4 |
| ITF Japan F4 | 2017/03/27 08:00 | Daisuke Sumizawa v Tomohiro Masabayashi | 0-6,0-6 |
| ITF Japan F3 | 2017/03/20 02:35 | Daisuke Sumizawa v Issei Okamura | 2-6,2-6 |
| ITF China F3 Qual | 2017/02/26 01:30 | Yuanfeng Li v Daisuke Sumizawa | 7-6,6-4 |
| ITF China F3 Qual | 2017/02/25 03:00 | Shiyou Liu v Daisuke Sumizawa | 2-6,2-6 |
| ITF China F2 Qual | 2017/02/20 04:20 | Ryota Tanuma v Daisuke Sumizawa | 6-4,6-2 |
| ITF China F2 Qual | 2017/02/19 07:30 | Daisuke Sumizawa v Weiqiang Zheng | 2-6,7-6,6-4 |