Stadium: Court 7 Round: 26 Ground: Hardcourt outdoor
| ITF W25 Yokohama | 2020/03/03 01:00 | Mei Yamaguchi v Yuka Hosoki | 6-1,6-2 |
| ITF W60 Kyoto | 2020/02/17 08:00 | Erina Hayashi v Yuka Hosoki | 7-6,6-2 |
| ITF W60 Kyoto | 2020/02/17 05:00 | Yuka Hosoki v Eri Shimizu | 6-2,2-6,10-7 |
| ITF W15 Monastir | 2020/02/09 11:00 | Linda Cagnazzo v Yuka Hosoki | 6-3,0-6,10-4 |
| ITF W15 Monastir | 2020/02/03 11:00 | Yuka Hosoki v Naima Karamoko | 3-6,4-6 |
| ITF W15 Monastir | 2020/02/02 13:00 | Yuka Hosoki v Erika Drozd Pereira | 6-4,6-3 |
| ITF W15 Monastir | 2020/01/26 12:00 | Yuka Hosoki v Emily Morton | 6-2,3-6,8-10 |
| ITF W15 Monastir | 2019/11/19 11:10 | Manon Arcangioli v Yuka Hosoki | 6-2,3-6,6-0 |
| ITF W15 Monastir | 2021/05/23 08:30 | Ayumi Koshiishi v Olga Helmi | 3-6,2-6 |
| ITF W15 Monastir | 2021/05/22 08:30 | Sakura Hosogi v Ayumi Koshiishi | 6-2,1-6,3-6 |
| ITF W15 Monastir | 2021/05/21 08:25 | Angelica Raggi v Ayumi Koshiishi | 4-6,2-6 |
| ITF W15 Monastir | 2021/05/20 10:10 | Ayumi Koshiishi v Chiara Scholl | 6-2,6-3 |
| ITF W15 Monastir | 2021/05/19 08:30 | Jasmijn Gimbrere v Ayumi Koshiishi | 4-6,1-6 |
| ITF W15 Monastir | 2021/05/11 08:30 | Erika Sema v Ayumi Koshiishi | 6-3,7-6 |
| ITF W15 Monastir | 2021/05/07 11:40 | Miharu Imanishi v Ayumi Koshiishi | 4-6,6-2,6-4 |
| ITF W15 Monastir | 2021/05/06 10:20 | Ayumi Koshiishi v Gozal Ainitdinova | 6-1,6-1 |