Stadium: Court 7 Round: 26 Ground: Hardcourt outdoor
| ITF - W25 Yokohama | 2020/03/03 01:00 | Ai Yamaguchi v Honoka Kobayashi | 0-6,0-6 |
| ITF - W15 Nakhon Si Thammarat | 2023/07/18 02:00 | Honoka Kobayashi v Ishwari Matere | 6-3,6-0 |
| ITF - W15 Nakhon Si Thammarat | 2023/07/12 04:15 | Haruna Arakawa v Honoka Kobayashi | 6-3,6-4 |
| ITF - W25 Nakhon Si Thammarat | 2023/07/02 07:15 | Honoka Kobayashi v Gyeong Seo Lee | 2-6,4-6 |
| ITF - W15 Kashiwa | 2023/06/10 02:00 | Honoka Kobayashi v Kisa Yoshioka | 2-6,1-6 |
| ITF - W15 Kashiwa | 2023/06/09 04:30 | Anri Nagata v Honoka Kobayashi | 6-3,1-6,3-6 |
| ITF - W15 Kashiwa | 2023/06/08 04:20 | Aely Arai v Honoka Kobayashi | 5-7,1-6 |
| ITF - W15 Kashiwa | 2023/06/07 06:55 | Azuna Ichioka v Honoka Kobayashi | 3-6,1-6 |
| ITF - W25 Tokyo | 2023/05/31 03:10 | Honoka Kobayashi v Yafan Wang | 1-6,1-6 |
| ITF - W15 Nakhon Si Thammarat | 2023/07/19 02:00 | Alicia Smith v Ai Yamaguchi | 4-6,4-6 |
| ITF - W15 Nakhon Si Thammarat | 2023/07/17 02:30 | Ai Yamaguchi v Laquisa Khan | 6-1,6-4 |
| ITF - W15 Nakhon Si Thammarat | 2023/07/16 03:15 | Ai Yamaguchi v Natcharee Teerachodjiranon | 6-1,6-1 |
| ITF - W15 Nakhon Si Thammarat | 2023/07/09 08:30 | Supapitch Kuearum v Ai Yamaguchi | 7-5,6-2 |
| ITF - W25 Nakhon Si Thammarat | 2023/07/02 09:30 | Carol Young Suh Lee v Ai Yamaguchi | 6-3,6-1 |
| ITF - W15 Kawaguchi | 2023/06/13 05:30 | Aoi Ito v Ai Yamaguchi | 6-1,6-1 |
| ITF - W15 Kashiwa | 2023/06/08 02:30 | Ai Yamaguchi v Mao Mushika | 4-6,4-6 |
| ITF - W15 Kashiwa | 2023/06/07 03:50 | Ai Yamaguchi v Mua Shigeta | 7-6,6-3 |