| UTR Pro Tennis Series – Burgas - Femenino | 2021/10/29 09:30 | Nevena Sokovic v Nastja Kolar | 3-6,0-6 |
| UTR Pro Tennis Series Zadar - Femenino | 2021/11/16 10:30 | Nastja Kolar v Leticia Tarocco | 6-0,6-1 |
| UTR Pro Tennis Series Zadar - Femenino | 2021/11/15 13:30 | Nastja Kolar v Ema Bolebruchova | 6-1,6-2 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/13 10:00 | Andreea Amalia Rosca v Nastja Kolar | 6-0,5-2 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/12 10:00 | Nastja Kolar v Bianca E Barbulescu | 5-7,6-1,5-3 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/10 11:30 | Nastja Kolar v Diana Ilie | 4-6,6-1,5-4 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/09 08:30 | Nastja Kolar v Daniella Dimitrova | 6-1,6-2 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/08 10:00 | Sara Gvozdenovic v Nastja Kolar | 6-3,1-6,2-6 |
| UTR Pro Tennis Series – Burgas - Femenino | 2021/10/31 07:30 | Julia Terziyska v Nastja Kolar | 6-1,5-4 |
| UTR Pro Tennis Series Zadar - Femenino | 2021/11/16 09:00 | Ema Bolebruchova v Nevena Sokovic | 0-6,2-5 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/14 08:00 | Nevena Sokovic v Daniella Dimitrova | 0-6,7-6,7-5 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/13 07:00 | Nevena Sokovic v Cemre Anil | 6-2,5-4 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/11 07:00 | Nevena Sokovic v Ioana Gaspar | 2-6,2-5 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/10 08:30 | Nevena Sokovic v Floriana Popovici | 6-2,5-1 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/09 10:00 | Nevena Sokovic v Mihaela Tsoneva | 4-6,6-6 |
| UTR Pro Tennis Series - Bucarest - Femenino | 2021/11/08 08:30 | Nevena Sokovic v Stefana Lazar | 6-2,5-2 |
| UTR Pro Tennis Series – Burgas - Femenino | 2021/10/30 09:30 | Nevena Sokovic v Gebriela Mihaylova | 6-7,6-2,3-6 |