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