Stadium: Center Round: 26 Ground: Hardcourt outdoor
| Liuzhou, Qualifications Simples W-ITF-CHN-25A | 2019/10/31 05:30 | Sun, Ziyue v Mariam Bolkvadze | 2-6,2-6 |
| Liuzhou, Qualifications Simples W-ITF-CHN-25A | 2019/10/30 09:40 | Sun, Ziyue v Ankita Raina | 6-2,6-4 |
| Liuzhou, Qualifications Simples W-ITF-CHN-25A | 2019/10/29 03:00 | Liu, Chang v Sun, Ziyue | 6-4,5-7,8-10 |
| Liuzhou, Qualifications Simples W-ITF-CHN-25A | 2019/10/28 06:00 | Mei Xu Wu v Sun, Ziyue | 4-6,2-6 |
| Nanning, Singles W-ITF-CHN-24A | 2019/10/23 03:45 | Sun, Ziyue v Dalila Jakupovic | 2-6,4-6 |
| Suzhou, Simples W-ITF-CHN-23A | 2019/10/16 02:00 | Sun, Ziyue v Hanyu Guo | 3-6,1-6 |
| Suzhou, Simples W-ITF-CHN-23A | 2019/10/14 06:35 | Cao, Siqi v Sun, Ziyue | 6-2,3-6,5-10 |
| Tianjin, Chine | 2019/10/05 03:15 | Xiyu Wang v Sun, Ziyue | 7-6,7-5 |
| Open d'Australie Asie-Pacifique Wildcard Playoff | 2019/12/03 02:00 | Chang, Kai-Chen v Li, Xiuyuan | 6-0,6-0 |
| Nonthaburi, Singles W-ITF-THA-01A | 2019/07/23 03:55 | Chang, Kai-Chen v Mananchaya Sawangkaew | 2-6,5-7 |
| Nonthaburi, Singles W-ITF-THA-01A | 2019/07/22 02:30 | Chang, Kai-Chen v Ng, Kwan Yau | 6-3,6-1 |
| Kashiwa, Qualifications Simples W-ITF-JPN-07A | 2019/04/06 04:15 | Rebecca Marino v Chang, Kai-Chen | 6-4,6-1 |
| Kashiwa, Qualifications Simples W-ITF-JPN-07A | 2019/04/05 03:40 | Chang, Kai-Chen v Na-Lae Han | 6-2,6-3 |
| Kashiwa, Qualifications Simples W-ITF-JPN-07A | 2019/04/04 02:15 | Chang, Kai-Chen v Kyoka Okamura | 6-3,6-4 |
| Kashiwa, Qualifications Simples W-ITF-JPN-07A | 2019/04/03 03:40 | Zhang, Kai Lin v Chang, Kai-Chen | 4-6,2-6 |
| Kashiwa, Qualifications Simples W-ITF-JPN-07A | 2019/04/02 00:00 | Xiaodi You v Chang, Kai-Chen | 4-6,0-6 |