Stadium: Center Court Round: 27 Ground: Hardcourt outdoor
| ITF W15 Xiamen | 2019/03/20 02:00 | Xu Liu Sun v Ziyue Sun | 5-7,1-6 |
| ITF Women Nanjing | 2017/02/15 02:00 | Xu Liu Sun v Ziyue Sun | 2-6,2-6 |
| ITF W25 Guiyang | 2019/08/22 02:00 | Amy Zhu v Xu Liu Sun | 2-6,6-2,4-6 |
| ITF W25 Guiyang | 2019/08/21 02:00 | Jia-Qi Kang v Xu Liu Sun | 1-6,1-6 |
| ITF W25 Guiyang | 2019/08/20 02:00 | Xu Liu Sun v Ziyi Yang | 6-3,6-7,10-6 |
| ITF W25 Guiyang | 2019/08/19 02:00 | Xu Liu Sun v Min Liu | 6-0,6-0 |
| ITF W25 Huangshan | 2019/08/13 02:00 | Xu Liu Sun v Siqi Cao | 5-7,2-6 |
| ITF W25 Huangshan | 2019/08/12 02:00 | Xu Liu Sun v Xinyi Chen | 6-0,6-1 |
| ITF W25 Qujing | 2019/07/20 02:30 | Xu Liu Sun v Aleksandrina Naydenova | 6-4,1-6,2-6 |
| ITF W25 Qujing | 2019/07/19 02:30 | Erika Sema v Xu Liu Sun | 6-2,4-6,3-6 |
| 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 |
| ITF W25 Huangshan | 2019/08/15 03:00 | Ziyue Sun v Ya-Hsuan Lee | 0-6,6-3,6-7 |
| ITF W25 Huangshan | 2019/08/14 03:40 | Ziyue Sun v Chengyiyi Yuan | 6-1,6-4 |
| ITF W25 Qujing | 2019/07/18 03:25 | Yexin Ma v Ziyue Sun | 6-1,6-1 |
| ITF W25 Ulanqab | 2019/07/10 03:00 | Anastasia Sukhotina v Ziyue Sun | 4-6,6-2,3-6 |
| ITF W25 Tianjin | 2019/07/04 02:00 | Ziyue Sun v Xinyu Gao | 3-6,7-5,6-7 |
| ITF W25 Tianjin | 2019/07/03 02:00 | Jia-Jing Lu v Ziyue Sun | 3-6,7-6,1-6 |