| UTR Pro Tennis Series - Burgas - Damen | 2021/10/30 09:30 | Ani Vangelova v Yoanna Radulova | 0-6,2-5 |
| UTR Pro Tennis Series - Burgas - Damen | 2021/10/29 09:30 | Yoanna Radulova v Crissy Alexia Tudora | 1-6,6-2,5-3 |
| UTR Pro Tennis Series - Burgas - Damen | 2021/10/28 06:30 | Yoanna Radulova v Nastja Kolar | 1-6,3-5 |
| UTR Pro Tennis Series - Burgas - Damen | 2021/10/27 08:00 | Zinovia Vaneva v Yoanna Radulova | 6-1,6-0 |
| UTR Pro Tennis Series - Burgas - Damen | 2021/10/26 11:38 | Nevena Sokovic v Yoanna Radulova | 6-4,6-1 |
| UTR Pro Tennis Series - Pazardzhik - Damen | 2021/05/15 10:30 | Yoanna Radulova v Doroteja Petrovic | 1-6,6-4,4-6 |
| UTR Pro Tennis Series - Pazardzhik - Damen | 2021/05/13 07:30 | Yoanna Radulova v Ioana Gaspar | 5-7,0-5 |
| UTR Pro Tennis Series - Pazardzhik - Damen | 2021/05/12 10:00 | Yoanna Radulova v Zinovia Vaneva | 6-7,0-6 |
| UTR Pro Tennis Series - Burgas - Damen | 2021/10/30 11:00 | Maria Wesselly v Isabelle Kouzmanov | 2-6,1-6 |
| UTR Pro Tennis Series - Burgas - Damen | 2021/10/29 06:30 | Daria Shalamanova v Isabelle Kouzmanov | 7-5,5-7,6-2 |
| UTR Pro Tennis Series - Burgas - Damen | 2021/10/28 08:00 | Julia Terziyska v Isabelle Kouzmanov | 6-0,6-0 |
| UTR Pro Tennis Series - Burgas - Damen | 2021/10/26 11:30 | Alexia-Shara Iancu v Isabelle Kouzmanov | 5-7,1-5 |
| UTR Pro Tennis Series - Burgas - Damen | 2021/10/25 06:30 | Isabelle Kouzmanov v Aleksandra Gabrovska | 1-6,2-6 |
| ITF Damen - W15 - Sozopol | 2021/10/04 09:30 | Anna Ozerova v Isabelle Kouzmanov | 6-2,6-3 |
| ITF Damen - W15 - Sozopol | 2021/09/12 07:00 | Isabelle Kouzmanov v Lucia Martinez Gomez | 3-6,3-6 |
| ITF Damen - Varna | 2021/09/05 08:30 | Maria Sara Popa v Isabelle Kouzmanov | 7-5,6-3 |