Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF W25 Tokyo | 2023/05/28 03:30 | Funa Kozaki v Kyoka Kubo | 6-4,6-2 |
| ITF W25 Karuizawa | 2023/05/25 00:30 | Funa Kozaki v Nana Kawagishi | 3-6,4-6 |
| ITF W25 Karuizawa | 2023/05/24 00:30 | Funa Kozaki v Kisa Yoshioka | 7-5,3-6,10-6 |
| ITF W60 Kurume | 2023/05/15 06:00 | Funa Kozaki v Mao Mushika | 3-6,2-6 |
| ITF W60 Fukuoka | 2023/05/08 00:50 | Akiko Omae v Funa Kozaki | 6-4,0-6,6-3 |
| ITF W80 Gifu | 2023/05/01 05:05 | Funa Kozaki v Anri Nagata | 3-6,3-6 |
| ITF W80 Gifu | 2023/05/01 01:00 | Nagi Hanatani v Funa Kozaki | 6-2,3-6,4-6 |
| ITF W15 Osaka | 2023/04/19 05:00 | Funa Kozaki v Risa Ushijima | 4-6,6-2,1-6 |
| ITF W25 Tokyo | 2023/05/28 03:30 | Yukina Saigo v Yuka Hosoki | 6-2,7-5 |
| ITF W25 Karuizawa | 2023/05/26 00:30 | Yukina Saigo v Momoko Kobori | 0-6,3-6 |
| ITF W25 Karuizawa | 2023/05/25 02:15 | Ayaka Ozeki v Yukina Saigo | 1-6,0-6 |
| ITF W25 Karuizawa | 2023/05/24 00:30 | Rinko Matsuda v Yukina Saigo | 3-6,6-3,7-10 |
| ITF W25 Karuizawa | 2023/05/22 00:30 | Akari Inoue v Yukina Saigo | 1-6,4-6 |
| ITF W60 Kurume | 2023/05/15 03:50 | Mei Yamaguchi v Yukina Saigo | 6-2,6-2 |
| ITF W60 Kurume | 2023/05/15 00:30 | Yukina Saigo v Nanari Katsumi | 6-1,6-2 |
| ITF W15 Antalya | 2023/03/26 08:00 | Noka Juric v Yukina Saigo | 6-3,1-6,10-4 |