Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| Challenger Liuzhou MD | 2018/10/24 03:00 | Nedovyesov/Ramanathan v Gao/Sun | 6-7,6-4,10-4 |
| Challenger Kaohsiung MD | 2018/09/18 04:20 | Gao/Sun v Santillan/Ward | 6-7,2-6 |
| Challenger Gwangju MD | 2018/08/16 08:40 | Gao/Sun v Nam/Song | 4-6,4-6 |
| Challenger Gwangju MD | 2018/08/13 09:40 | Granollers/Mukund v Gao/Sun | 4-6,5-7 |
| Challenger Jinan MD | 2018/08/09 12:30 | Hsieh/Yang v Gao/Sun | 4-6,6-1,10-6 |
| Challenger Jinan MD | 2018/08/06 04:00 | Gao/Sun v He/Zhang | 6-4,6-3 |
| ITF Thailand F12 MD | 2017/12/15 05:00 | Gao/Sun v Chung/Song | 6-7,6-3,6-10 |
| ITF Thailand F12 MD | 2017/12/14 06:00 | Gao/Sun v Duldaev/Kim | 6-3,6-2 |