 Hong Kong: W25 Hong Kong - Singles - Main |
|---|
| 1/16-finals | Yamaguchi M. | Cao S. | 2:1 (6:3, 2:6, 6:1) | details | 08.01.2020 |
 China: Changsha - Singles - Main |
|---|
| 1/8-finals | Cao S. | Lu J. | 0:2 (2:6, 2:6) | details | 05.09.2019 |
| 1/16-finals | Liu S. Q. | Cao S. | 0:2 (0:6, 1:6) | details | 04.09.2019 |
| China: Jinan - Singles - Main |
|---|
| 1/16-finals | Cao S. | Wu M. X. | 1:2 (4:6, 6:4, 1:6) | details | 27.08.2019 |
| China: Shenzhen 2 - Singles - Main |
|---|
| 1/16-finals | Zhu L. | Cao S. | 2:0 (6:2, 6:0) | details | 07.11.2017 |
| China: Liuzhou - Singles - Main |
|---|
| 1/16-finals | Jakupovic D. | Cao S. | 2:0 (6:3, 6:0) | details | 24.10.2017 |
| China: Zhuhai - Singles - Main |
|---|
| 1/16-finals | Kulichkova E. | Cao S. | 2:0 (7:5, 6:0) | details | 13.09.2016 |
 USA: US Open - Singles - Qualification |
|---|
| Semi-finals | Cao S. | Ong V. | 0:2 (1:6, 2:6) | details | 02.09.2016 |
| China: Wuhan - Singles - Main |
|---|
| 1/16-finals | Ivakhnenko V. | Cao S. | 2:0 (6:2, 6:2) | details | 26.07.2016 |
 United Kingdom: Wimbledon - Singles - Qualification |
|---|
| Final | Arias Manjon P. | Cao S. | 2:1 (6:3, 65:7, 6:1) | details | 01.07.2016 |
| Semi-finals | Desai Z. | Cao S. | 1:2 (3:6, 6:4, 3:6) | details | 30.06.2016 |
 France: French Open - Singles - Qualification |
|---|
| Semi-finals | Shytkouskaya N. | Cao S. | 2:1 (2:6, 6:2, 6:2) | details | 26.05.2016 |
| China: Xuzhou - Singles - Main |
|---|
| Quarter-finals | Raina A. | Cao S. | 2:0 (6:4, 7:5) | details | 29.05.2015 |
| 1/8-finals | Lertcheewakarn N. | Cao S. | 0:1 RET. (0:6, 0:3) | details | 28.05.2015 |
| 1/16-finals | Cao S. | Pivovarova A. | 2:0 (6:4, 6:4) | details | 27.05.2015 |
