| UTR Pro Tennis Series Pazardzhik Women | 2021/05/05 12:00 | Ralitsa Alexandrova v Mirela Shkumbova | 2-6,6-4,2-6 |
| ITF W15 Pazardzhik | 2020/10/28 11:00 | Vlada Ekshibarova v Mirela Shkumbova | 7-5,6-4 |
| ITF W15 Pazardzhik | 2020/10/27 07:00 | Lucie Petruzelova v Mirela Shkumbova | 4-6,6-2,5-10 |
| ITF W15 Pazardzhik | 2020/10/26 08:30 | Mirela Shkumbova v Aleksandra Julia Zuchanska | 7-6,6-3 |
| ITF Women Varna | 2020/09/08 07:30 | Nikol Ruseva v Mirela Shkumbova | 6-3,6-1 |
| ITF Women Varna | 2020/09/07 07:30 | Mirela Shkumbova v Sara Gvozdenovic | 6-3,7-5 |
| ITF W15 Sozopol | 2019/10/02 07:00 | Mirela Shkumbova v Ani Vangelova | 0-6,6-7 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/04 11:30 | Ralitsa Alexandrova v Elitsa Kostova | 2-6,0-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/03 08:30 | Elitsa Kostova v Ani Vangelova | 6-1,5-0 |
| ITF W60 Bellinzona | 2021/04/05 13:20 | Bianca Turati v Elitsa Kostova | 6-4,6-4 |
| ITF W25 Dubai | 2021/04/01 06:25 | Elitsa Kostova v Yuliya Hatouka | 2-6,5-7 |
| ITF W25 Dubai | 2021/03/31 07:40 | Lesley Pattinama Kerkhove v Elitsa Kostova | 2-6,5-7 |
| ITF W25 Dubai | 2021/03/30 10:50 | Elitsa Kostova v Sabina Sharipova | 6-4,4-6,6-1 |
| Australian Open Women | 2021/01/10 12:55 | Antonia Lottner v Elitsa Kostova | 6-4,7-5 |
| ITF W25 LPD Gran Canaria | 2020/11/18 13:00 | Elitsa Kostova v Jule Niemeier | 3-6,0-6 |