Stadium: Court 2 Round: 54 Ground: Hardcourt outdoor
| ITF W40 - Yokohama | 2023/11/27 01:00 | Yeon Woo Ku v Ramu Ueda | 6-0,3-6,6-0 |
| ITF W100 - Takasaki | 2023/11/20 03:00 | Aliona Falei v Yeon Woo Ku | 6-2,1-6,6-3 |
| Billie Jean King Cup | 2023/11/10 17:15 | Beatriz Haddad Maia v Yeon Woo Ku | 6-0,6-4 |
| ITF W25 - Qian Daohu | 2023/10/25 01:55 | Yeon Woo Ku v Chengyiyi Yuan | 4-6,7-6,3-6 |
| WTA Seoul | 2023/10/09 03:30 | Claire Liu v Yeon Woo Ku | 6-3,6-3 |
| WTA Seoul | 2023/10/08 04:10 | Yeon Woo Ku v Ya-Hsuan Lee | 6-1,3-6,6-4 |
| ITF W25 - Vigo | 2023/08/23 08:00 | Lesley Pattinama Kerkhove v Yeon Woo Ku | 6-2,6-4 |
| ITF W25 - Vigo | 2023/08/21 09:00 | Yeon Woo Ku v Fangran Tian | 6-3,6-4 |
| ITF W40 - Yokohama | 2023/11/27 01:00 | Hina Nishi v Yuka Hosoki | 6-3,6-2 |
| ITF W25 - Yokohama | 2022/11/08 01:00 | Erina Hayashi v Hina Nishi | 6-3,6-4 |
| ITF W25 - Yokohama | 2022/11/07 04:55 | Hina Nishi v Hwiwon Wi | 7-5,3-6,10-6 |