Stadium: Centre Court Round: 28 Ground: Hardcourt outdoor
| ITF M25 Luzhou MD | 2019/05/30 08:40 | Gao/Sun v Mo/Zou | 6-0,6-1 |
| ITF M25 Luzhou MD | 2019/05/28 06:45 | Gao/Sun v Tan/Yu | 6-2,6-2 |
| Challenger Zhangjiagang MD | 2019/03/20 11:10 | Hsieh/Rungkat v Gao/Sun | 2-6,7-6,11-9 |
| Challenger Shenzhen 2 MD | 2018/10/29 07:20 | Oliveira/Sabanov v Gao/Sun | 6-2,6-4 |
| 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 |
| ITF M25 Luzhou MD | 2019/05/30 07:20 | Ho/Okamura v Cui/Li | 1-6,6-3,10-5 |
| ITF M25 Luzhou MD | 2019/05/29 04:45 | Ho/Okamura v Guo/Ji | 6-4,6-4 |