Stadium: Court 12 Round: 26 Ground: Grass
| Karuizawa, Singles W-ITF-JPN-12A | 2023/05/24 04:35 | Rinon Okuwaki v Natsumi Kawaguchi | 0-6,4-6 |
| Kurume, Singles W-ITF-JPN-11A | 2023/05/17 01:00 | Natsumi Kawaguchi v Eri Shimizu | 3-6,4-6 |
| Fukuoka, Singles W-ITF-JPN-10A | 2023/05/13 04:15 | Natsumi Kawaguchi v Carol Zhao | 6-1,7-6 |
| Fukuoka, Singles W-ITF-JPN-10A | 2023/05/12 03:35 | Sara Saito v Natsumi Kawaguchi | 6-1,6-7,6-7 |
| Fukuoka, Singles W-ITF-JPN-10A | 2023/05/11 01:00 | Natsumi Kawaguchi v Sakura Hosogi | 6-1,6-4 |
| Fukuoka, Singles W-ITF-JPN-10A | 2023/05/10 01:00 | Aoi Ito v Natsumi Kawaguchi | 4-6,5-7 |
| Fukuoka, Singles W-ITF-JPN-10A | 2023/05/08 04:25 | Natsumi Kawaguchi v Miho Kuramochi | 6-3,7-5 |
| Gifu, Singles W-ITF-JPN-09A | 2023/05/02 01:00 | Ayano Shimizu v Natsumi Kawaguchi | 6-1,6-3 |
| Karuizawa, Singles W-ITF-JPN-12A | 2023/05/25 00:30 | Ushijima, Risa v Johanne C Svendsen | 6-7,3-6 |
| Kurume, Singles W-ITF-JPN-11A | 2023/05/17 01:00 | Johanne C Svendsen v En Shuo Liang | 3-6,0-6 |
| ITF W25 Nottingham | 2023/04/28 11:15 | Johanne C Svendsen v Rutuja Bhosale | 7-5,4-6,2-6 |
| ITF W25 Nottingham | 2023/04/27 09:00 | Clara Vlasselaer v Johanne C Svendsen | 5-7,5-7 |
| ITF W25 Nottingham | 2023/04/26 09:00 | Alice Gillan v Johanne C Svendsen | 5-7,6-4,3-6 |
| ITF W25 Nottingham | 2023/04/19 09:00 | Johanne C Svendsen v Naiktha Bains | 6-2,1-6,2-6 |
| Billie Jean King Cup | 2023/04/12 09:00 | Johanne C Svendsen v Malene Helgo | 4-6,4-6 |
| Billie Jean King Cup | 2023/04/10 08:30 | Petra Marcinko v Johanne C Svendsen | 2-6,7-5,7-5 |