Stadium: Court 1 Round: 29 Ground: Hardcourt outdoor
| ITF W15 Sozopol | 2021/10/09 07:00 | Anna Brogan v Yeon Woo Ku | 1-6,4-6 |
| ITF W15 Sozopol | 2021/10/08 07:00 | Yeon Woo Ku v Sofia Nami Samavati | 6-0,6-2 |
| ITF W15 Sozopol | 2021/10/07 08:00 | Yeon Woo Ku v Mihaela Tsoneva | 6-2,6-1 |
| ITF W15 Sozopol | 2021/10/06 08:00 | Valentina Ryser v Yeon Woo Ku | 3-6,2-6 |
| ITF W25 Lisbon | 2021/09/28 14:25 | Tatjana Maria v Yeon Woo Ku | 6-1,7-6 |
| ITF W25 Lisbon | 2021/09/27 09:00 | Yeon Woo Ku v Ines Murta | 6-4,6-1 |
| ITF W25 Lisbon | 2021/09/26 09:00 | Francisca Jorge v Yeon Woo Ku | 7-6,1-6,8-10 |
| ITF W15 Melilla | 2021/09/17 14:50 | Lucia L Domingo v Yeon Woo Ku | 7-6,2-6,6-3 |
| ITF W15 Sozopol | 2021/10/09 07:00 | Julia Terziyska v Denislava Glushkova | 6-2,6-3 |
| ITF W15 Sozopol | 2021/10/08 07:00 | Ilay Yoruk v Julia Terziyska | 5-7,7-5,5-7 |
| ITF W15 Sozopol | 2021/10/07 08:00 | Lia Karatancheva v Julia Terziyska | 1-6,0-6 |
| ITF W15 Sozopol | 2021/10/06 08:30 | Lucia L Domingo v Julia Terziyska | 3-6,3-6 |
| ITF W15 Sozopol | 2021/09/16 07:00 | Polina Pavlova v Julia Terziyska | 2-6,4-6 |
| ITF W15 Sozopol | 2021/09/15 09:30 | Mihaela Tsoneva v Julia Terziyska | 1-6,4-6 |
| ITF W15 Varna | 2021/09/12 06:55 | Julia Terziyska v Daria Mishina | 4-6,4-6 |
| ITF W15 Varna | 2021/09/11 07:00 | Jana Bojovic v Julia Terziyska | 3-6,7-5,4-6 |