Stadium: Court 9 Round: 62 Ground: Hardcourt outdoor
| ITF W15 Kuching | 2023/03/05 01:30 | Hanyu Guo v Ayumi Koshiishi | 7-5,2-6,1-6 |
| ITF W15 Kuching | 2023/03/04 01:30 | Shuo Feng v Ayumi Koshiishi | 0-6,1-6 |
| ITF W15 Kuching | 2023/03/03 01:30 | Ayumi Koshiishi v Aoi Ito | 6-1,7-6 |
| ITF W15 Kuching | 2023/03/02 01:30 | Ayumi Koshiishi v Kisa Yoshioka | 6-3,6-2 |
| ITF W15 Kuching | 2023/03/01 09:35 | Ayumi Koshiishi v Jo-Leen Saw | 6-2,6-0 |
| ITF W15 Kuala Lumpur | 2023/02/26 01:30 | Hanyu Guo v Ayumi Koshiishi | 6-4,6-3 |
| ITF W15 Kuala Lumpur | 2023/02/25 01:30 | Ayumi Koshiishi v Aunchisa Chanta | 6-4,7-5 |
| ITF W15 Kuala Lumpur | 2023/02/24 01:30 | Ayumi Koshiishi v Riko Sawayanagi | 6-3,7-6 |