| UTR Pro Tennis Series Pazardzhik Women | 2021/05/13 06:00 | Nastja Kolar v Rositsa Dencheva | 6-2,5-3 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/12 08:30 | Nastja Kolar v Silvia Maria Costache | 6-2,6-0 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/11 11:30 | Nastja Kolar v Gebriela Mihaylova | 6-3,5-2 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/10 08:30 | Nastja Kolar v Doroteja Petrovic | 6-0,5-1 |
| ITF W15 Cairo | 2021/04/28 08:00 | Nicole Fossa Huergo v Nastja Kolar | 6-1,6-1 |
| ITF W15 Cairo | 2021/04/23 09:00 | Maria Timofeeva v Nastja Kolar | 6-2,7-5 |
| ITF W15 Cairo | 2021/04/22 10:50 | Lian Tran v Nastja Kolar | 6-7,2-6 |
| ITF W15 Cairo | 2021/04/21 08:00 | Briana Szabo v Nastja Kolar | 3-6,2-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/14 09:00 | Darja Semenistaja v Katerina Dimitrova | 6-3,6-3 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/12 10:00 | Darja Semenistaja v Ioana Gaspar | 6-2,6-4 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/11 07:00 | Darja Semenistaja v Zinovia Vaneva | 6-2,6-3 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/10 10:00 | Yoanna Radulova v Darja Semenistaja | 1-6,0-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/09 10:00 | Darja Semenistaja v Katerina Dimitrova | 6-2,6-2 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/08 12:30 | Darja Semenistaja v Ralitsa Alexandrova | 7-5,6-7,6-1 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/07 11:30 | Darja Semenistaja v Rositsa Dencheva | 3-6,6-2,7-5 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/06 07:00 | Darja Semenistaja v Stefana Lazar | 6-4,6-3 |