Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF W25 Tokyo | 2023/05/29 02:30 | Risa Ushijima v Mai Kandori | 6-1,6-2 |
| ITF W25 Tokyo | 2023/05/28 03:30 | Risa Ushijima v Mua Shigeta | 6-2,6-0 |
| ITF W25 Karuizawa | 2023/05/25 00:30 | Risa Ushijima v Johanne C Svendsen | 6-7,3-6 |
| ITF W25 Karuizawa | 2023/05/24 03:10 | Risa Ushijima v Anri Nagata | 6-2,6-7,10-6 |
| ITF W15 Osaka | 2023/04/20 02:00 | Eri Shimizu v Risa Ushijima | 6-4,7-6 |
| ITF W15 Osaka | 2023/04/19 05:00 | Funa Kozaki v Risa Ushijima | 4-6,6-2,1-6 |
| 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 | Risa Ushijima v Hikari Yamamoto | 6-4,6-0 |
| ITF W25 Tokyo | 2023/05/29 01:00 | Rinon Okuwaki v Madison Frahn | 6-0,6-0 |
| ITF W25 Karuizawa | 2023/05/24 04:35 | Rinon Okuwaki v Natsumi Kawaguchi | 0-6,4-6 |
| ITF W25 Incheon | 2023/05/14 03:45 | Rinon Okuwaki v Qianhui Tang | 1-6,6-4,4-10 |
| ITF W15 Fukui | 2023/04/29 01:00 | Rinon Okuwaki v Miho Kuramochi | 3-6,3-6 |
| 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 00:55 | Rinon Okuwaki v Riko Sawayanagi | 3-6,6-2,6-3 |
| ITF W15 Fukui | 2023/04/26 06:50 | Honori Koyama v Rinon Okuwaki | 2-6,2-6 |
| ITF W15 Fukui | 2023/04/25 01:00 | Rinon Okuwaki v Nagomi Higashitani | 7-6,6-1 |