Round: 25 Ground: Hardcourt outdoor
| ITF China F5 Qual | 2017/04/10 02:00 | Jie Cui v Chang, Yu | 1-6,1-6 |
| ITF China F5 Qual | 2017/04/08 02:00 | Chang, Yu v Aoran Wang | 6-3,6-1 |
| ITF China F4 | 2017/04/04 02:00 | Zhe Li v Chang, Yu | 6-1,6-0 |
| ITF Japan F4 | 2017/03/25 03:00 | Chang, Yu v Watanuki, Keisuke | 7-6,3-6,4-6 |
| ITF Japan F3 | 2017/03/18 03:00 | Tanaka, Yunosuke v Chang, Yu | 2-6,6-2,6-4 |
| ITF China F3 Qual | 2017/02/25 01:00 | Li, Yuanfeng v Chang, Yu | 7-5,6-3 |
| ITF China F2 | 2017/02/21 02:00 | Wang, Chuhan v Chang, Yu | 6-1,1-6,6-3 |
| ITF China F2 Qual | 2017/02/20 03:40 | Hong Kit Wong v Chang, Yu | 6-4,4-6,2-6 |
| ITF China F4 | 2017/04/09 02:00 | Zhe Li v Sekiguchi, Shuichi | 6-3,6-0 |
| ITF China F4 | 2017/04/08 04:00 | Zhong, Su Hao v Sekiguchi, Shuichi | 1-6,6-2,2-6 |
| ITF China F4 | 2017/04/06 05:05 | Qi, Xi v Sekiguchi, Shuichi | 4-6,3-6 |
| ITF China F4 | 2017/04/04 05:50 | Chen, Long v Sekiguchi, Shuichi | 0-6,0-6 |
| Challenger Quanzhou | 2017/03/23 04:50 | Sekiguchi, Shuichi v Ignatik, Uladzimir | 6-7,4-6 |
| Challenger Quanzhou | 2017/03/20 02:05 | Velotti, Agustin v Sekiguchi, Shuichi | 6-7,4-6 |
| Quanzhou, China, Qualifying | 2017/03/19 03:40 | Sekiguchi, Shuichi v Andrea Pellegrino | 2-6,6-7 |
| Quanzhou, China, Qualifying | 2017/03/18 05:00 | Sekiguchi, Shuichi v Bury, Aliaksandr | 6-2,6-0 |