| UTR Pro Tennis Series Burgas Women | 2021/10/31 07:30 | Katerina Dimitrova v Zinovia Vaneva | 3-6,1-5 |
| UTR Pro Tennis Series Burgas Women | 2021/10/30 06:30 | Aleksandra Gabrovska v Zinovia Vaneva | 3-6,4-5 |
| UTR Pro Tennis Series Burgas Women | 2021/10/28 06:30 | Zinovia Vaneva v Crissy Alexia Tudora | 6-3,6-1 |
| UTR Pro Tennis Series Burgas Women | 2021/10/27 08:00 | Zinovia Vaneva v Yoanna Radulova | 6-1,6-0 |
| UTR Pro Tennis Series Burgas Women | 2021/10/26 13:00 | Zinovia Vaneva v Nastja Kolar | 6-2,5-7,4-6 |
| UTR Pro Tennis Series Burgas Women | 2021/10/25 09:30 | Zinovia Vaneva v Nevena Sokovic | 6-4,5-1 |
| UTR Pro Tennis Series Nis Women | 2021/10/17 12:30 | Zinovia Vaneva v Sara Mikaca | 6-3,4-6,0-3 |
| UTR Pro Tennis Series Nis Women | 2021/10/17 10:15 | Zinovia Vaneva v Iva Sepa | 6-2,6-1 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/07 12:20 | Elitsa Kostova v Zuzana Zlochova | 3-6,5-7 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/06 09:30 | Elitsa Kostova v Ana L De La Nuez | 6-0,6-1 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/05 15:15 | Elitsa Kostova v Valeria Avdeeva | 6-1,6-2 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/04 11:30 | Elitsa Kostova v Nina Ugrelidze | 4-6,6-1,6-0 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/03 10:00 | Agustina Chlpac v Elitsa Kostova | 3-6,0-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/02 12:30 | Lucia Aranda Arcas v Elitsa Kostova | 6-4,4-6,1-5 |
| WTA Belgrade | 2021/07/27 14:50 | Elitsa Kostova v Arantxa Rus | 1-6,0-6 |
| ITF W60 Biarritz | 2021/07/14 09:30 | Elitsa Kostova v Estelle Cascino | 4-6,3-6 |