Stadium: Court B2 Round: 54 Ground: Hardcourt outdoor
| ITF - W15 Fukui | 2023/04/28 01:00 | Honoka Kobayashi v Rinon Okuwaki | 6-4,1-6,3-6 |
| ITF - W15 Fukui | 2023/04/27 01:00 | Lee, Pei-Chei v Honoka Kobayashi | 3-6,6-1,5-7 |
| ITF - W15 Fukui | 2023/04/25 02:00 | Erina Hayashi v Honoka Kobayashi | 3-6,2-6 |
| Osaka, Singles W-ITF-JPN-02A | 2023/04/17 02:00 | Honoka Kobayashi v Rinon Okuwaki | 3-6,6-1,7-10 |
| Osaka, Singles W-ITF-JPN-02A | 2023/04/10 01:00 | Honoka Kobayashi v Mei Yamaguchi | 5-7,3-6 |
| Osaka, Singles W-ITF-JPN-02A | 2023/04/09 01:00 | Ran Inaba v Honoka Kobayashi | 1-6,1-6 |
| Kofu, Qualifications Simples W-ITF-JPN-05A | 2023/03/29 04:45 | Sayaka Ishii v Honoka Kobayashi | 6-2,6-2 |
| ITF - W15 Hinode | 2023/03/23 04:10 | Moeka Miyata v Honoka Kobayashi | 6-2,7-6 |
| ITF - W15 Fukui | 2023/04/27 00:55 | Rinon Okuwaki v Sawayanagi, Riko | 3-6,6-2,6-3 |
| ITF - W15 Fukui | 2023/04/25 02:00 | Takayama, Chihiro v Sawayanagi, Riko | 5-7,0-6 |
| 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 |