Stadium: Court 2 Round: 27 Ground: Hardcourt outdoor
| ITF W15 Kuala Lumpur | 2023/02/23 01:30 | Ayumi Koshiishi v Meiqi Guo | 6-3,6-1 |
| ITF W15 Ipoh | 2023/02/18 01:30 | Lanlana Tararudee v Ayumi Koshiishi | 6-4,7-5 |
| ITF W15 Ipoh | 2023/02/17 01:30 | Dabin Kim v Ayumi Koshiishi | 2-6,5-7 |
| ITF W15 Ipoh | 2023/02/16 03:55 | Sara Nayar v Ayumi Koshiishi | 4-6,3-6 |
| ITF W15 Ipoh | 2023/02/15 03:15 | Shanelle Iaconi v Ayumi Koshiishi | 2-6,2-6 |
| ITF W60 Tokyo | 2022/11/14 08:10 | Ayumi Koshiishi v Hiromi Abe | 6-7,1-6 |
| ITF W60 Tokyo | 2022/11/14 05:55 | Ayumi Koshiishi v Yukina Saigo | 6-3,6-2 |
| ITF W25 Hamamatsu | 2022/10/13 02:30 | Ayumi Koshiishi v Eri Shimizu | 6-3,4-6,2-6 |
| ITF W15 Kuala Lumpur | 2023/02/23 01:30 | Caroline Vernet v Riko Sawayanagi | 1-6,1-6 |
| ITF W15 Kuala Lumpur | 2023/02/21 03:50 | Riko Sawayanagi v Aoi Ito | 7-5,6-0 |
| ITF W15 Ipoh | 2023/02/16 01:30 | Riko Sawayanagi v Jaeda Daniel | 5-7,4-6 |
| ITF W15 Ipoh | 2023/02/14 04:40 | Riko Sawayanagi v Vivian Yang | 6-4,6-0 |
| ITF W25 Burnie | 2023/02/08 23:00 | Olivia Gadecki v Riko Sawayanagi | 6-3,4-6,6-2 |
| ITF W25 Burnie | 2023/02/07 00:30 | Eri Shimizu v Riko Sawayanagi | 3-6,5-7 |
| ITF W25 Burnie | 2023/02/06 01:30 | Yaroslava Bartashevich v Riko Sawayanagi | 4-6,1-6 |
| ITF W60 Burnie | 2023/01/30 00:20 | Riko Sawayanagi v Elena Micic | 6-2,4-6,3-6 |