Stadium: Court 2 Round: 27 Ground: Hardcourt outdoor
| ITF W15 Sharm El Sheikh | 2021/10/06 09:10 | Katarina Kuzmova v Xin Tong Wang | 4-6,6-2,6-7 |
| ITF W15 Sozopol | 2021/09/16 08:55 | Katarina Kuzmova v Chiara Catini | 3-6,6-4,2-6 |
| ITF W15 Sozopol | 2021/09/14 10:00 | Katarina Kuzmova v Maria Krupenina | 6-4,6-3 |
| ITF W15 Bad Waltersdorf | 2021/08/27 09:25 | Yeon Woo Ku v Katarina Kuzmova | 6-2,4-6,7-6 |
| ITF W15 Bad Waltersdorf | 2021/08/26 08:35 | Katarina Kuzmova v Caijsa W Hennemann | 6-4,3-6,6-4 |
| ITF W15 Bad Waltersdorf | 2021/08/25 12:05 | Tamara Kostic v Katarina Kuzmova | 5-7,4-6 |
| ITF W15 Warmbad-Villach | 2021/08/20 08:55 | Katarina Kuzmova v Yeon Woo Ku | 0-6,3-6 |
| ITF W15 Warmbad-Villach | 2021/08/19 08:00 | Romana Cisovska v Katarina Kuzmova | 1-6,6-2,6-7 |
| 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 |