Stadium: Centre Court Round: 26 Ground: Hardcourt outdoor
| Challenger Granby MD | 2017/07/25 21:35 | Harris A / Polmans M v Bangoura S / Gonzales R | 1-6,4-6 |
| Challenger Shanghai MD | 2019/09/15 03:00 | Gao X / Sun F v Polmans M / Puodziunas S | 2-6,6-4,10-7 |
| Challenger Shanghai MD | 2019/09/14 06:40 | Oliveira G / Uchiyama Y v Gao X / Sun F | 6-7,6-3,7-10 |
| Challenger Shanghai MD | 2019/09/12 08:45 | Ratiwatana Sa / Ratiwatana So v Gao X / Sun F | 6-4,4-6,7-10 |
| Challenger Shanghai MD | 2019/09/11 08:20 | Wang/Wu v Gao X / Sun F | 3-6,7-6,8-10 |
| Kunshan, Doubles M-ITF-CHN-12A | 2019/07/06 06:00 | Gao X / Sun F v R Hua / S H Zeng | 6-2,7-6 |
| Kunshan, Doubles M-ITF-CHN-12A | 2019/07/05 07:00 | Gao X / Sun F v Lazdins A / Yeung P L | 6-2,6-4 |
| Kunshan, Doubles M-ITF-CHN-12A | 2019/07/04 05:10 | Gao X / Sun F v Wang/Zhou | 7-5,6-4 |
| Kunshan, Doubles M-ITF-CHN-12A | 2019/07/02 11:35 | Gao X / Sun F v MO Y / Xia H | 6-2,6-2 |