Stadium: Center Round: 26 Ground: Hardcourt outdoor
| Challenger Zhangjiagang MD | 2018/09/06 08:40 | Gao/Zhang v Gong/Zhang | 3-6,3-6 |
| Challenger Zhangjiagang MD | 2018/09/05 06:10 | Gao/Zhang v Kadhe/Statham | 6-4,7-6 |
| Challenger Qujing MD | 2018/03/21 05:40 | Granollers/Li v Gao/Zhang | 6-3,6-2 |
| Challenger Qujing MD | 2018/03/19 06:15 | Gao/Zhang v Tokuda/Trongcharoenchaikul | 6-2,6-1 |
| Challenger Shenzhen MD | 2018/03/14 10:30 | Gao/Zhang v Molchanov/Zelenay | 4-6,7-6,5-10 |
| Challenger Kobe MD | 2017/11/08 07:20 | Gao/Zhang v Nedunchezhiyan/Rungkat | 2-6,3-6 |
| Challenger Kobe MD | 2017/11/06 05:55 | Gao/Zhang v Gabashvili/Polansky | 6-4,6-4 |
| Challenger Ningbo MD | 2017/10/16 07:55 | Menendez-Maceiras/Monteiro v Gao/Zhang | 6-1,7-6 |