Stadium: Centre Court Round: 25 Ground: Hardcourt outdoor
| ITF - Osaka W15 | 2023/04/21 01:00 | Ya-Hsuan Lee v Natsumi Kawaguchi | 3-6,2-6 |
| ITF - Yokohama W25 | 2022/11/09 03:00 | Ya-Hsuan Lee v Natsumi Kawaguchi | 3-6,2-6 |
| ITF - Gifu W100 | 2024/04/30 05:00 | Aleksandra Krunic v Natsumi Kawaguchi | 6-3,6-1 |
| ITF - Gifu W100 | 2024/04/29 04:30 | Haley Giavara v Natsumi Kawaguchi | 7-6,3-6,5-7 |
| ITF - Tokyo W100 | 2024/04/22 03:15 | Erika Sema v Natsumi Kawaguchi | 6-4,7-6 |
| ITF - Osaka W35 | 2024/04/09 01:00 | Natsumi Kawaguchi v Sara Saito | 4-6,1-6 |
| ITF - Kashiwa W50 | 2024/04/01 05:55 | Natsumi Kawaguchi v Miho Kuramochi | 2-6,3-6 |
| ITF - Kofu W50 | 2024/03/27 00:30 | Natsumi Kawaguchi v Ikumi Yamazaki | 4-6,6-2,2-6 |
| ITF - Hinode W15 | 2024/03/21 01:00 | Kayo Nishimura v Natsumi Kawaguchi | 2-6,6-2,6-0 |
| ITF - Hinode W15 | 2024/03/19 01:00 | Mio Mushika v Natsumi Kawaguchi | 4-6,7-6,4-6 |
| ITF - Gifu W100 | 2024/05/03 02:25 | Mai Hontama v Ya-Hsuan Lee | 3-6,6-4,6-3 |
| ITF - Gifu W100 | 2024/05/02 02:15 | Ya-Hsuan Lee v Miho Kuramochi | 6-3,4-6,7-6 |
| ITF - Gifu W100 | 2024/05/01 07:00 | Ya-Hsuan Lee v Eudice Chong | 3-6,6-1,7-5 |
| ITF - Gifu W100 | 2024/04/30 03:00 | Ya-Hsuan Lee v Mei Yamaguchi | 6-2,3-6,7-5 |
| ITF - Gifu W100 | 2024/04/29 03:30 | Ya-Hsuan Lee v Misaki Matsuda | 4-6,6-2,7-6 |
| ITF - Tokyo W100 | 2024/04/23 04:15 | Ya-Hsuan Lee v Luksika Kumkhum | 3-6,3-6 |
| ITF - Tokyo W100 | 2024/04/22 07:15 | Ya-Hsuan Lee v Momoko Kobori | 4-6,6-2,7-6 |
| ITF - Osaka W35 | 2024/04/12 01:00 | Sayaka Ishii v Ya-Hsuan Lee | 6-4,6-2 |