| UTR Pro Tennis Series Florence Women | 2022/10/07 09:00 | Julia Terziyska v Elitsa Kostova | 3-6,6-7 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/15 07:30 | Elitsa Kostova v Julia Terziyska | 6-4,5-1 |
| ITF W25 El Espinar | 2019/08/03 12:10 | Elitsa Kostova v Julia Terziyska | 7-6,4-6,4-6 |