Stadium: Centre Court Round: 25 Ground: Hardcourt outdoor
| ITF Women Guiyang | 2018/08/14 03:45 | Cao, Siqi v Fang Ying Xun | 2-6,2-6 |
| ITF Women Changsha | 2018/06/07 02:30 | Fang Ying Xun v Cao, Siqi | 6-4,6-2 |
| ITF Women Nanjing | 2018/03/29 02:00 | Cao, Siqi v Fang Ying Xun | 3-6,3-6 |
| ITF Women Nanjing | 2018/03/20 05:20 | Cao, Siqi v Fang Ying Xun | 1-6,1-6 |
| Wuhan, Simples W-ITF-CHN-08A | 2019/05/17 02:30 | Fang Ying Xun v Yue Yuan | 1-6,6-1,0-6 |
| Wuhan, Simples W-ITF-CHN-08A | 2019/05/16 02:30 | Fang Ying Xun v Chengyiyi Yuan | 6-3,6-2 |
| Wuhan, Simples W-ITF-CHN-08A | 2019/05/15 02:00 | Fang Ying Xun v Chen, Jiahui | 7-5,6-2 |
| Luan, Simples W-ITF-CHN-07A | 2019/05/07 05:40 | Hanyu Guo v Fang Ying Xun | 1-6,2-6 |
| WTA Anning | 2019/04/25 07:55 | Shuai Zhang v Fang Ying Xun | 2-6,6-2,6-1 |
| WTA Anning | 2019/04/23 02:30 | Fang Ying Xun v Rosca, Andreea Amalia | 6-3,2-6,6-2 |
| Hong Kong, Simples W-ITF-HKG-01B | 2019/04/09 05:20 | Fang Ying Xun v Maddison Inglis | 1-6,4-6 |
| Kofu, Qualifications Simples W-ITF-JPN-05A | 2019/03/26 01:00 | Fang Ying Xun v Lara Salden | 2-6,2-6 |
| Wuhan, Simples W-ITF-CHN-08A | 2019/05/16 03:30 | Cao, Siqi v Jing-Jing Lu | 1-6,0-6 |
| Wuhan, Simples W-ITF-CHN-08A | 2019/05/15 05:45 | Yang, Ziyi v Cao, Siqi | 1-6,0-6 |
| Luan, Simples W-ITF-CHN-07A | 2019/05/06 03:10 | Cao, Siqi v Chengyiyi Yuan | 6-4,5-7,3-10 |
| Nanchang, Simples W-ITF-CHN-03A | 2019/03/09 03:00 | Cao, Siqi v Dabin Kim | 1-6,4-6 |
| Nanchang, Simples W-ITF-CHN-03A | 2019/03/08 03:00 | Kukharchuk, Nika v Cao, Siqi | 2-6,6-3,4-6 |
| Nanchang, Simples W-ITF-CHN-03A | 2019/03/07 02:00 | Lu, Jiaxi v Cao, Siqi | 0-6,6-2,3-6 |
| Nanchang, Simples W-ITF-CHN-03A | 2019/03/05 05:00 | Yanni Liu v Cao, Siqi | 4-6,4-6 |
| Nanchang, Simples W-ITF-CHN-03A | 2019/02/28 02:45 | Cao, Siqi v Lu, Jiaxi | 2-6,5-7 |