Stadium: Court 2 Round: 28 Ground: Hardcourt outdoor
| 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 |
| ITF W25 Naiman - NP | 2019/06/25 02:00 | Feng/Kang v Gao/Sun | 6-3,6-2 |
| ITF M25 Luzhou - MP | 2019/06/01 07:15 | Gao/Sun v Wang/Wu | 6-3,1-6,5-10 |
| ITF M25 Luzhou - MP | 2019/05/31 05:25 | Gao/Sun v Ho/Okamura | 7-5,6-3 |
| ITF M25 Luzhou - MP | 2019/05/30 08:40 | Gao/Sun v Mo/Zou | 6-0,6-1 |
| ITF M25 Luzhou - MP | 2019/05/28 06:45 | Gao/Sun v Tan/Yu | 6-2,6-2 |
| Challenger Zhangjiagang - MP | 2019/03/20 11:10 | Hsieh/Rungkat v Gao/Sun | 2-6,7-6,11-9 |
| ITF M25 Kunshan MD | 2019/07/04 05:45 | Meng/Yang v Lazdins/Yeung | 4-6,3-6 |
| ITF M25 Kunshan MD | 2019/07/03 07:30 | Lazdins/Yeung v Mendoza/Wattanakul | 6-2,6-4 |