Stadium: Court 8 Round: 25 Ground: Hardcourt outdoor
| ITF W15 Nanchang | 2019/02/23 03:00 | Siqi Cao v Mei Yamaguchi | 3-6,6-3,4-6 |
| ITF W25 Hong Kong | 2020/01/07 03:50 | Emily Fanning v Mei Yamaguchi | 0-6,4-6 |
| ITF W25 Hong Kong | 2020/01/06 02:00 | Mio Kozaki v Mei Yamaguchi | 3-6,1-6 |
| ITF W25 Hong Kong | 2020/01/02 02:00 | Lin Zhu v Mei Yamaguchi | 6-0,6-2 |
| ITF W25 Hong Kong | 2020/01/01 04:55 | Mei Yamaguchi v Lucie Hradecka | 6-3,3-6,7-5 |
| ITF W25 Hong Kong | 2019/12/31 02:00 | Yexin Ma v Mei Yamaguchi | 2-6,7-6,5-10 |
| ITF W25 Hong Kong | 2019/12/30 03:00 | Mei Yamaguchi v Zhibek Kulambayeva | 6-2,6-0 |
| ITF W25 Hua Hin | 2019/11/13 03:00 | Mei Yamaguchi v Abigail Tere-Apisah | 3-6,5-7 |
| ITF W25 Hua Hin | 2019/11/12 04:40 | Mei Yamaguchi v Punnin Kovapitukted | 6-2,6-4 |
| ITF W25 Hong Kong | 2020/01/07 04:05 | Sakura Hondo v Siqi Cao | 6-4,2-6,6-10 |
| ITF W25 Hong Kong | 2020/01/06 02:00 | Ho Ka Henrietta Wong v Siqi Cao | 2-6,0-6 |
| ITF W25 Hong Kong | 2019/12/30 03:00 | Funa Kozaki v Siqi Cao | 6-3,6-4 |
| ITF W100 Shenzhen | 2019/11/04 01:50 | Xiaodi You v Siqi Cao | 6-2,6-1 |
| ITF W25 Nanning | 2019/10/22 02:00 | Ksenia Laskutova v Siqi Cao | 6-4,1-6,10-5 |
| ITF W25 Nanning | 2019/10/21 02:00 | Siqi Cao v Ho Ching Wu | 7-5,6-4 |
| ITF W25 Nanning | 2019/10/20 02:30 | Xiaochuan Nie v Siqi Cao | 2-6,2-6 |
| ITF W100 Suzhou | 2019/10/14 06:35 | Siqi Cao v Ziyue Sun | 6-2,3-6,5-10 |