Stadium: Pista 9 Round: 25 Ground: Hardcourt outdoor
| ITF W25 Radom | 2021/08/10 11:30 | Dalila Jakupovic v Ya-Hsuan Lee | 6-4,6-3 |
| ITF W25 Bydgoszcz | 2021/08/04 14:25 | Zeynep Sonmez v Ya-Hsuan Lee | 6-1,6-1 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/27 10:20 | Ya-Hsuan Lee v Gabriela Talaba | 7-6,2-6,4-6 |
| ITF W15 Sharm El Sheikh | 2021/04/11 07:00 | Ya-Hsuan Lee v Olivia Gadecki | 6-3,6-3 |
| ITF W15 Sharm El Sheikh | 2021/04/10 07:00 | Ya-Hsuan Lee v Anna Siskova | 0-6,6-2,6-4 |
| ITF W15 Sharm El Sheikh | 2021/04/09 07:00 | Ya-Hsuan Lee v Arina Gabriela Vasilescu | 6-3,6-1 |
| ITF W15 Sharm El Sheikh | 2021/04/08 10:00 | Ya-Hsuan Lee v Andre Lukosiute | 1-6,6-1,6-4 |
| ITF W15 Sharm El Sheikh | 2021/04/07 07:00 | Ya-Hsuan Lee v Noa Liauw A Fong | 7-5,6-2 |
| ITF W15 Lousada | 2020/11/01 16:00 | Eva A Sande v Juline Fayard | 2-6,0-6 |