Round: 62 Ground: Hardcourt outdoor
| ITF China F11 Qual | 2017/07/01 08:45 | Daisuke Sumizawa v Leo Tang | 6-1,6-1 |
| ITF Guam F1 | 2017/06/19 01:15 | Connor Farren v Daisuke Sumizawa | 7-5,6-1 |
| ITF Guam F1 | 2017/06/17 00:00 | Daisuke Sumizawa v Joseph W. Van Meter | 4-6,6-4,6-2 |
| ITF Japan F8 | 2017/06/12 00:00 | Daisuke Sumizawa v Yuki Matsuo | 3-6,4-6 |
| ITF Japan F8 | 2017/06/10 00:00 | Daisuke Sumizawa v Takuya Komura | 6-4,6-0 |
| ITF Japan F7 | 2017/06/03 01:00 | Daisuke Sumizawa v Luca Castelnuovo | 3-6,3-6 |
| ITF Japan F6 Qual | 2017/05/29 03:00 | Yuga Tashiro v Daisuke Sumizawa | 6-1,6-1 |
| ITF Japan F6 Qual | 2017/05/28 06:00 | Yuga Tashiro v Daisuke Sumizawa | 6-1,6-1 |
| ITF China F11 Qual | 2017/07/01 07:40 | Danny Ha v Zhao Cai | 1-6,0-6 |
| ITF China F8 Qual | 2017/05/21 05:10 | Zhao-Tai Li v Zhao Cai | 5-7,7-6,6-2 |
| ITF China F7 Qual | 2017/05/13 06:30 | He Feng v Zhao Cai | 6-3,6-1 |
| ITF China F6 Qual | 2017/05/08 01:30 | Aoran Wang v Zhao Cai | 6-4,7-5 |
| ITF China F5 | 2017/04/12 03:00 | Zhao Cai v Kuan-Yi Lee | 4-6,1-6 |
| ITF China F5 | 2017/04/11 02:00 | Huixin Wang v Zhao Cai | 7-5,2-6,5-7 |
| ITF China F4 | 2017/04/04 04:40 | Zhao Cai v Andriej Kapas | 6-7,3-6 |
| ITF China F4 Qual | 2017/04/03 02:00 | Zhao Cai v Aoran Wang | 0-6,6-1,6-4 |