Stadium: Court 11 Round: 25 Ground: Grass
| 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 |
| ITF - W15 Fukui | 2023/04/24 02:00 | Rinon Okuwaki v Miyu Nakashima | 6-2,6-0 |
| ITF - W25 Osaka | 2023/04/18 01:00 | Rinon Okuwaki v Mio Mushika | 2-6,0-6 |
| ITF - W60 Kurume | 2023/05/17 01:00 | Natsumi Kawaguchi v Eri Shimizu | 3-6,4-6 |
| ITF - W60 Fukuoka | 2023/05/13 04:15 | Natsumi Kawaguchi v Carol Zhao | 6-1,7-6 |
| ITF - W60 Fukuoka | 2023/05/12 03:35 | Sara Saito v Natsumi Kawaguchi | 6-1,6-7,6-7 |
| ITF - W60 Fukuoka | 2023/05/11 01:00 | Natsumi Kawaguchi v Sakura Hosogi | 6-1,6-4 |
| ITF - W60 Fukuoka | 2023/05/10 01:00 | Aoi Ito v Natsumi Kawaguchi | 4-6,5-7 |
| ITF - W60 Fukuoka | 2023/05/08 04:25 | Natsumi Kawaguchi v Miho Kuramochi | 6-3,7-5 |
| ITF - W80 Gifu | 2023/05/02 01:00 | Ayano Shimizu v Natsumi Kawaguchi | 6-1,6-3 |
| ITF - W15 Osaka | 2023/04/23 02:00 | Miho Kuramochi v Natsumi Kawaguchi | 4-6,1-6 |