Stadion: Court 7 Round: 25 Ground: Hardcourt outdoor
| ITF Damen - W15 - Sozopol | 2021/09/14 09:00 | Nastja Kolar v Yoana Moneva | 6-0,6-0 |
| UTR Pro Tennis Series - Zadar - Damen | 2021/10/02 07:00 | Zuzana Zlochova v Nastja Kolar | 3-6,6-4,6-4 |
| UTR Pro Tennis Series - Zadar - Damen | 2021/10/01 12:30 | Ema Bolebruchova v Nastja Kolar | 2-6,1-6 |
| UTR Pro Tennis Series - Zadar - Damen | 2021/09/30 08:00 | Victoria Chramcova v Nastja Kolar | 0-6,0-6 |
| UTR Pro Tennis Series - Zadar - Damen | 2021/09/28 08:30 | Bojana Marinkovic v Nastja Kolar | 2-6,6-4,6-4 |
| UTR Pro Tennis Series - Zadar - Damen | 2021/09/27 15:30 | Nastja Kolar v Matea Mamic | 2-6,6-1,5-2 |
| ITF Damen - W15 - Sozopol | 2021/09/19 07:00 | Nastja Kolar v Chiara Catini | 6-4,6-7,3-6 |
| ITF Damen - W15 - Sozopol | 2021/09/18 07:00 | Nastja Kolar v Dia Evtimova | 7-6,7-5 |
| ITF Damen - W15 - Sozopol | 2021/09/17 08:35 | Nastja Kolar v Defne Cirpanli | 6-1,6-3 |
| ITF Damen - W15 - Sozopol | 2021/09/14 09:00 | Nastja Kolar v Yoana Moneva | 6-0,6-0 |