Estádio: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF - W25 Osaka | 2023/04/18 01:00 | Risa Ushijima v Chihiro Takayama | 6-2,6-3 |
| ITF - W25 Osaka | 2023/04/17 02:00 | Britney Chiu v Chihiro Takayama | 4-6,2-6 |
| ITF - W25 Osaka | 2023/04/09 03:00 | Risa Ushijima v Chihiro Takayama | 6-4,6-3 |
| ITF - W15 Jacarta | 2023/03/15 06:10 | Risa Ushijima v Chihiro Takayama | 6-1,3-6,6-3 |
| ITF - W15 Jacarta | 2023/03/14 02:15 | Chihiro Takayama v Daria Domova | 6-2,6-1 |
| ITF - W15 Jacarta | 2023/03/13 03:05 | Chihiro Takayama v Ananya Yadav | 6-2,6-0 |
| ITF - W15 Kuching | 2023/03/02 01:30 | Dabin Kim v Chihiro Takayama | 6-1,7-6 |
| ITF - W15 Kuching | 2023/03/01 09:20 | Chihiro Takayama v Riko Hiroshima | 6-3,6-0 |
| ITF - W25 Osaka | 2023/04/12 09:30 | Xiaodi You v Riko Sawayanagi | 6-1,6-1 |
| ITF - W25 Osaka | 2023/04/10 04:50 | Gyeong Seo Lee v Riko Sawayanagi | 4-6,2-6 |
| ITF - W25 Osaka | 2023/04/10 01:00 | Ai Yamaguchi v Riko Sawayanagi | 2-6,4-6 |
| ITF - W25 Osaka | 2023/04/09 01:00 | Ayaka Ozeki v Riko Sawayanagi | 0-6,0-6 |
| ITF - W60 Camberra | 2023/03/21 03:00 | Riko Sawayanagi v Dalila Jakupovic | 2-6,2-6 |
| ITF - W60 Camberra | 2023/03/20 00:25 | Ya-Yi Yang v Riko Sawayanagi | 6-3,0-6,1-6 |
| ITF - W60 Camberra - Qualificação | 2023/03/18 23:00 | Sophia Fry v Riko Sawayanagi | 0-6,0-6 |
| ITF - W60 Camberra | 2023/03/15 23:00 | Haruka Kaji v Riko Sawayanagi | 6-2,4-6,6-2 |