Stadium: Court 7 Round: 25 Ground: Grass
| 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 |
| ITF W15 Osaka | 2023/04/22 02:00 | Ayano Shimizu v Natsumi Kawaguchi | 5-7,4-6 |
| ITF W60 Fukuoka | 2023/05/11 02:10 | Katie Boulter v Eri Shimizu | 6-1,6-0 |
| ITF W60 Fukuoka | 2023/05/10 01:00 | Michika Ozeki v Eri Shimizu | 4-6,3-6 |
| ITF W80 Gifu | 2023/05/01 02:15 | Eri Shimizu v Miho Kuramochi | 3-6,1-6 |
| ITF W15 Osaka | 2023/04/21 01:00 | Eri Shimizu v Miho Kuramochi | 3-6,3-6 |
| 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 | Eri Shimizu v Ramu Ueda | 6-4,0-6,6-2 |
| ITF W25 Osaka | 2023/04/10 04:40 | Eri Shimizu v Aoi Ito | 2-6,0-6 |
| ITF W25 Osaka | 2023/04/10 01:00 | Eri Shimizu v Honori Koyama | 7-5,6-0 |