Stadium: Indoor 9 Round: 28 Ground: Synthetic outdoor
| ITF - Hamamatsu W25 | 2019/10/18 04:30 | Mei Yamaguchi v Akiko Omae | 5-7,6-1,7-6 |
| ITF - Hamamatsu W25 | 2019/10/16 05:20 | Mai Hontama v Mei Yamaguchi | 3-6,6-3,5-7 |
| ITF - Makinohara W25 | 2019/10/09 00:30 | Funa Kozaki v Mei Yamaguchi | 6-3,7-5 |
| ITF - Hua Hin W15 | 2019/07/12 03:00 | Lou Brouleau v Mei Yamaguchi | 5-7,6-3,7-6 |
| ITF - Hua Hin W15 | 2019/07/11 03:00 | Ambre Feder v Mei Yamaguchi | 1-6,2-6 |
| ITF - Hua Hin W15 | 2019/07/10 03:00 | Lunda Kumhom v Mei Yamaguchi | 5-7,2-6 |
| ITF - Hua Hin W15 | 2019/07/05 04:30 | Lou Brouleau v Mei Yamaguchi | 6-3,6-3 |
| ITF - Hua Hin W15 | 2019/07/04 05:20 | Zhuoma Ni Ma v Mei Yamaguchi | 2-6,2-6 |
| ITF - Hamamatsu W25 | 2019/10/18 04:30 | Eri Hozumi v Ayano Shimizu | 7-5,6-3 |
| ITF - Hamamatsu W25 | 2019/10/17 03:00 | Haruna Arakawa v Eri Hozumi | 3-6,4-6 |
| ITF - Hamamatsu W25 | 2019/10/16 06:50 | Himeno Sakatsume v Eri Hozumi | 7-6,5-7,4-6 |
| ITF - Santa Margherita W25 | 2019/10/09 14:15 | Angelica Moratelli v Eri Hozumi | 6-1,2-6,6-2 |
| ITF - Santa Margherita W25 | 2019/10/08 15:45 | Eri Hozumi v Gabriela Ce | 5-7,6-3,6-2 |
| ITF - Santa Margherita W25 | 2019/10/01 13:50 | Eri Hozumi v Corinna Dentoni | 6-4,6-7,8-10 |
| WTA New Haven | 2019/09/03 17:15 | Lara Arruabarrena v Eri Hozumi | 7-6,6-0 |
| WTA New Haven | 2019/09/02 14:00 | Eri Hozumi v Chelsea Kung | 6-0,6-1 |