Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF W60 Fukuoka | 2023/05/10 01:00 | Aoi Ito v Natsumi Kawaguchi | 4-6,5-7 |
| ITF W15 Hinode | 2023/03/26 06:00 | Aoi Ito v Natsumi Kawaguchi | 4-6,3-6 |
| ITF W25 Hamamatsu | 2022/10/12 02:25 | Aoi Ito v Natsumi Kawaguchi | 6-3,1-6,6-0 |
| ITF W25 Tokyo | 2023/05/31 02:55 | Natsumi Kawaguchi v Nana Kawagishi | 6-3,6-2 |
| ITF W25 Karuizawa | 2023/05/26 02:10 | Natsumi Kawaguchi v Johanne C Svendsen | 6-4,3-6,1-6 |
| ITF W25 Karuizawa | 2023/05/24 04:35 | Rinon Okuwaki v Natsumi Kawaguchi | 0-6,4-6 |
| 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 W25 Tokyo | 2023/05/30 01:30 | Aoi Ito v Olivia Lincer | 6-0,7-5 |
| ITF W25 Karuizawa | 2023/05/27 00:30 | Ayano Shimizu v Aoi Ito | 6-3,6-3 |
| ITF W25 Karuizawa | 2023/05/26 00:30 | Nana Kawagishi v Aoi Ito | 3-6,3-6 |
| ITF W25 Karuizawa | 2023/05/24 07:00 | Aoi Ito v Naho Sato | 6-2,4-6,6-4 |
| ITF W60 Kurume | 2023/05/17 02:20 | Aoi Ito v Lizette Cabrera | 3-6,6-4,4-6 |
| ITF W60 Kurume | 2023/05/15 03:25 | Aoi Ito v Suzuho Oshino | 6-1,6-2 |
| ITF W60 Fukuoka | 2023/05/10 01:00 | Aoi Ito v Natsumi Kawaguchi | 4-6,5-7 |
| ITF W60 Fukuoka | 2023/05/08 03:40 | Aoi Ito v Nana Kawagishi | 6-4,6-2 |