Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF W15 Waco | 2022/11/16 16:00 | Sara Daavettila v Lee, Carol Youngsuh | 6-2,6-1 |
| ITF W60 Lexington | 2022/08/02 14:00 | Veronika Miroshnichenko v Lee, Carol Youngsuh | 6-2,6-2 |
| ITF W60 Lexington | 2022/08/01 15:45 | Lee, Carol Youngsuh v Gabriella Price | 6-2,7-6 |
| ITF W25 Sumter | 2022/06/18 12:30 | Hanna Chang v Lee, Carol Youngsuh | 6-2,6-4 |
| ITF W25 Sumter | 2022/06/17 12:40 | Lee, Carol Youngsuh v Ashlyn Krueger | 6-1,4-6,6-2 |
| ITF W25 Sumter | 2022/06/16 12:30 | Elizabeth Mandlik v Lee, Carol Youngsuh | 1-6,4-6 |
| ITF W25 Sumter | 2022/06/15 12:25 | Sarah Hamner v Lee, Carol Youngsuh | 3-6,3-6 |
| ITF W25 Sumter | 2022/06/14 12:30 | Carolyn Ansari v Lee, Carol Youngsuh | 7-5,5-7,3-10 |
| ITF - W15 Kawaguchi | 2023/06/13 05:30 | Aoi Ito v Yamaguchi, Ai | 6-1,6-1 |
| ITF W15 Kashiwa | 2023/06/08 02:30 | Yamaguchi, Ai v Mao Mushika | 4-6,4-6 |
| ITF W15 Kashiwa | 2023/06/07 03:50 | Yamaguchi, Ai v Shigeta, Mua | 7-6,6-3 |
| Karuizawa, Singles W-ITF-JPN-12A | 2023/05/24 02:40 | Tori Kinard v Yamaguchi, Ai | 6-2,7-5 |
| Karuizawa, Singles W-ITF-JPN-12A | 2023/05/22 00:30 | Honori Koyama v Yamaguchi, Ai | 3-6,4-6 |
| Kurume, Singles W-ITF-JPN-11A | 2023/05/16 02:25 | Yamaguchi, Ai v Olivia Lincer | 5-7,0-6 |
| Fukuoka, Singles W-ITF-JPN-10A | 2023/05/10 01:50 | Yamaguchi, Ai v Erika Sema | 0-6,2-6 |
| ITF - W15 Fukui | 2023/04/24 02:00 | Yamaguchi, Ai v Yui Chikaraishi | 2-6,5-7 |