| ITF Women Wuhan Qual | 2018/05/14 03:00 | Ziyue Sun v Siqi Cao | 6-2,6-1 |
| ITF Women Luan Qual | 2018/05/08 03:00 | Ziyue Sun v Siqi Cao | 6-1,7-5 |
| ITF W15 Anning | 2019/09/17 03:20 | Yuqi Sheng v Siqi Cao | 1-6,1-6 |
| ITF W15 Anning | 2019/09/14 03:45 | Siqi Cao v Oleksandra Oliynykova | 1-6,7-6,2-6 |
| ITF W15 Anning | 2019/09/13 02:00 | Yexin Ma v Siqi Cao | 7-6,2-6,6-7 |
| ITF W15 Anning | 2019/09/12 02:00 | Mana Kawamura v Siqi Cao | 2-6,2-6 |
| ITF W15 Anning | 2019/09/11 05:25 | Jiayun Zhu v Siqi Cao | 1-6,1-6 |
| ITF W15 Anning | 2019/09/09 06:10 | Siqi Cao v Jia Yi Dong | 6-0,6-1 |
| ITF W15 Anning | 2019/09/08 07:20 | Siqi Cao v Mengxin Zhai | 6-0,6-0 |
| ITF W60 Changsha | 2019/09/05 02:00 | Siqi Cao v Jia-Jing Lu | 2-6,2-6 |
| WTA Tianjin | 2019/10/05 03:15 | Xiyu Wang v Ziyue Sun | 7-6,7-5 |
| WTA Nanchang | 2019/09/08 07:00 | Jaqueline Adina Cristian v Ziyue Sun | 6-3,6-3 |
| WTA Nanchang | 2019/09/07 08:50 | Jacqueline Cako v Ziyue Sun | 1-6,0-6 |
| ITF W60 Changsha | 2019/09/04 02:00 | Chengyiyi Yuan v Ziyue Sun | 6-3,6-4 |
| ITF W60 Jinan | 2019/08/26 03:45 | Ziyue Sun v Ho Ching Wu | 3-6,7-5,5-10 |
| ITF W25 Guiyang | 2019/08/23 02:00 | Xu Liu Sun v Ziyue Sun | 6-4,0-6,7-5 |
| ITF W25 Guiyang | 2019/08/22 03:50 | Ziyue Sun v Fangzhou Liu | 7-6,6-4 |
| ITF W25 Guiyang | 2019/08/21 05:00 | Yixuan Li v Ziyue Sun | 3-6,1-6 |