| UTR Pro Tennis Series Plovdiv Women | 2021/12/17 07:30 | Irina Fetecau v Yoanna Radulova | 6-0,5-2 |
| UTR Pro Tennis Series Plovdiv Women | 2021/12/16 09:00 | Denislava Glushkova v Yoanna Radulova | 1-4 |
| UTR Pro Tennis Series Plovdiv Women | 2021/12/13 07:30 | Yoanna Radulova v Victoria Borodulina | 6-7,4-6 |
| UTR Pro Tennis Series Burgas Women | 2021/10/31 09:00 | Yoanna Radulova v Isabelle Kouzmanov | 6-4,6-2 |
| UTR Pro Tennis Series Burgas Women | 2021/10/30 09:30 | Ani Vangelova v Yoanna Radulova | 0-6,2-5 |
| UTR Pro Tennis Series Burgas Women | 2021/10/29 09:30 | Yoanna Radulova v Crissy Alexia Tudora | 1-6,6-2,5-3 |
| UTR Pro Tennis Series Burgas Women | 2021/10/28 06:30 | Yoanna Radulova v Nastja Kolar | 1-6,3-5 |
| UTR Pro Tennis Series Burgas Women | 2021/10/27 08:00 | Zinovia Vaneva v Yoanna Radulova | 6-1,6-0 |