Stadium: Court B Round: 25 Ground: Hardcourt indoor
| ITF W15 Hinode | 2023/03/24 00:00 | Akiko Omae v Natsumi Kawaguchi | 4-6,4-6 |
| WTA Osaka | 2023/09/09 06:55 | Himeno Sakatsume v Natsumi Kawaguchi | 6-3,6-3 |
| ITF W100 Tokyo | 2023/09/05 02:00 | Alexandra Eala v Natsumi Kawaguchi | 6-4,6-3 |
| ITF W40 Hong Kong | 2023/08/22 02:00 | Anastasia Zakharova v Natsumi Kawaguchi | 6-4,6-2 |
| ITF W40 Hong Kong | 2023/07/04 04:25 | Ayano Shimizu v Natsumi Kawaguchi | 6-4,7-5 |
| ITF W25 Hong Kong | 2023/06/29 03:20 | Ya-Yi Yang v Natsumi Kawaguchi | 6-3,6-1 |
| ITF W25 Hong Kong | 2023/06/27 04:45 | Monique Barry v Natsumi Kawaguchi | 2-6,1-6 |
| ITF W25 Tokyo | 2023/06/01 00:50 | Natsumi Kawaguchi v Aoi Ito | 0-6,3-6 |
| ITF W25 Tokyo | 2023/05/31 02:55 | Natsumi Kawaguchi v Nana Kawagishi | 6-3,6-2 |
| ITF W25 Kyoto | 2023/09/18 03:25 | Akiko Omae v Na Hyun Kang | 6-1,7-6 |
| ITF W25 Kyoto | 2023/09/17 04:00 | Akiko Omae v Honori Koyama | 6-0,4-6,11-9 |
| ITF W40 Hong Kong | 2023/07/06 02:00 | Sijia Wei v Akiko Omae | 6-2,6-3 |
| ITF W40 Hong Kong | 2023/07/05 05:35 | Akiko Omae v Justine S K T Leong | 6-4,6-0 |
| ITF W40 Hong Kong | 2023/07/05 05:30 | Akiko Omae v Justine Leong | 6-4,6-0 |
| ITF W40 Hong Kong | 2023/07/04 01:55 | Akiko Omae v Chui Kei Leung | 6-1,6-1 |
| ITF W40 Hong Kong | 2023/07/02 02:00 | Akiko Omae v Erica Kanna Hagi | 6-1,6-2 |
| ITF W25 Hong Kong | 2023/06/29 02:00 | Akiko Omae v Anastasia Gasanova | 6-3,2-6,0-6 |