Stadium: Centre Court Round: 26 Ground: Hardcourt outdoor
| Challenger Granby - MD | 2017/07/25 21:35 | Harris/Polmans v Bangoura/Gonzales | 1-6,4-6 |
| Challenger Shanghai - MD | 2019/09/15 03:00 | Gao/Sun v Polmans/Puodziunas | 2-6,6-4,10-7 |
| Challenger Shanghai - MD | 2019/09/14 06:40 | Oliveira/Uchiyama v Gao/Sun | 6-7,6-3,7-10 |
| Challenger Shanghai - MD | 2019/09/12 08:45 | Ratiwatana/Ratiwatana v Gao/Sun | 6-4,4-6,7-10 |
| Challenger Shanghai - MD | 2019/09/11 08:20 | Wang/Wu v Gao/Sun | 3-6,7-6,8-10 |
| ITF M25 Kunshan MD | 2019/07/06 06:00 | Gao/Sun v Hua/Zeng | 6-2,7-6 |
| ITF M25 Kunshan MD | 2019/07/05 07:00 | Gao/Sun v Lazdins/Yeung | 6-2,6-4 |
| ITF M25 Kunshan MD | 2019/07/04 05:10 | Gao/Sun v Wang/Zhou | 7-5,6-4 |
| ITF M25 Kunshan MD | 2019/07/02 11:35 | Gao/Sun v Mo/Xia | 6-2,6-2 |