| UTR Pro Tennis Series Barcelona Women | 2021/11/02 13:30 | Agustina Chlpac v Nina Ugrelidze | 6-4,5-3 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/01 10:30 | Agustina Chlpac v Lucia Aranda Arcas | 6-1,2-6,4-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/30 16:30 | Agustina Chlpac v Valeria Avdeeva | 4-6,2-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/28 08:30 | Agustina Chlpac v Elizabeth Jurna | 3-6,1-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/27 14:00 | Agustina Chlpac v Lucia Aranda Arcas | 4-6,2-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/26 10:00 | Agustina Chlpac v Paula Ortega Redondo | 5-7,6-2,5-3 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/25 13:30 | Agustina Chlpac v Zuzana Zlochova | 6-1,2-6,3-6 |
| ITF W15 Antalya | 2021/10/19 08:20 | Ilay Yoruk v Agustina Chlpac | 6-4,3-6,6-4 |
| 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 |
| ITF W100 Contrexeville | 2021/07/08 10:00 | Elitsa Kostova v Dalma Galfi | 6-7,1-6 |
| ITF W100 Contrexeville | 2021/07/06 11:45 | Ulrikke Eikeri v Elitsa Kostova | 4-6,6-3,4-6 |
| Wimbledon Women | 2021/06/24 10:00 | Elitsa Kostova v Xinyu Wang | 2-6,1-6 |
| Wimbledon Women | 2021/06/23 10:00 | Elitsa Kostova v Destanee Aiava | 6-4,7-5 |
| ITF W25 Madrid | 2021/06/11 07:15 | Robin Anderson v Elitsa Kostova | 7-6,6-2 |