Stadium: Court 2 Round: 54 Ground: Hardcourt outdoor
| ITF Women Wuhan Qual | 2018/05/14 03:00 | Sun, Ziyue v Cao, Siqi | 6-2,6-1 |
| ITF Women Luan Qual | 2018/05/08 03:00 | Sun, Ziyue v Cao, Siqi | 6-1,7-5 |
| Anning, Singles W-ITF-CHN-22A | 2019/09/17 03:20 | Sheng, Yuqi v Cao, Siqi | 1-6,1-6 |
| Anning, Singles W-ITF-CHN-22A | 2019/09/14 03:45 | Cao, Siqi v Oleksandra Oliynykova | 1-6,7-6,2-6 |
| Anning, Singles W-ITF-CHN-22A | 2019/09/13 02:00 | Yexin Ma v Cao, Siqi | 7-6,2-6,6-7 |
| Anning, Singles W-ITF-CHN-22A | 2019/09/12 02:00 | Mana Kawamura v Cao, Siqi | 2-6,2-6 |
| Anning, Singles W-ITF-CHN-22A | 2019/09/11 05:25 | Jiayun Zhu v Cao, Siqi | 1-6,1-6 |
| Anning, Singles W-ITF-CHN-22A | 2019/09/09 06:10 | Cao, Siqi v Dong, Jia Yi | 6-0,6-1 |
| Anning, Singles W-ITF-CHN-22A | 2019/09/08 07:20 | Cao, Siqi v Zhai, Mengxin | 6-0,6-0 |
| Changsha, Simples W-ITF-CHN-19A | 2019/09/05 02:00 | Cao, Siqi v Jia-Jing Lu | 2-6,2-6 |
| Tianjin, Chine | 2019/10/05 03:15 | Xiyu Wang v Sun, Ziyue | 7-6,7-5 |
| Nanchang, Chine | 2019/09/08 07:00 | Cristian, Jaqueline Adina v Sun, Ziyue | 6-3,6-3 |
| Nanchang, Chine | 2019/09/07 08:50 | Cako, Jacqueline v Sun, Ziyue | 1-6,0-6 |
| Changsha, Simples W-ITF-CHN-19A | 2019/09/04 02:00 | Chengyiyi Yuan v Sun, Ziyue | 6-3,6-4 |
| Jinan, Qualifications Simples W-ITF-CHN-18A | 2019/08/26 03:45 | Sun, Ziyue v Ho Ching Wu | 3-6,7-5,5-10 |
| Guiyang, Singles W-ITF-CHN-17A | 2019/08/23 02:00 | Sun, Xu Liu v Sun, Ziyue | 6-4,0-6,7-5 |
| Guiyang, Singles W-ITF-CHN-17A | 2019/08/22 03:50 | Sun, Ziyue v Fangzhou Liu | 7-6,6-4 |
| Guiyang, Singles W-ITF-CHN-17A | 2019/08/21 05:00 | Li, Yixuan v Sun, Ziyue | 3-6,1-6 |