| UTR Pro Tennis Series Zadar Women | 2021/08/09 09:30 | Sara Mikaca v Nastja Kolar | 1-6,0-5 |
| ITF W25 Parnu | 2021/08/05 08:30 | Anna Siskova v Nastja Kolar | 6-1,6-3 |
| ITF W25 Parnu | 2021/08/04 07:00 | Nastja Kolar v Magali Kempen | 6-4,6-3 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/26 09:30 | Nastja Kolar v Akgul Amanmuradova | 6-1,4-6,3-10 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/25 10:10 | Weronika Jasmina Forys v Nastja Kolar | 2-6,1-6 |
| UTR Pro Tennis Series Ricany Women | 2021/07/04 09:00 | Nastja Kolar v Oleksandra Oliynykova | 6-4,3-6,3-6 |
| UTR Pro Tennis Series Ricany Women | 2021/07/03 12:00 | Aneta Laboutkova v Nastja Kolar | 2-6,2-6 |
| UTR Pro Tennis Series Ricany Women | 2021/07/01 09:30 | Tereza Kolarova v Nastja Kolar | 4-6,1-6 |
| UTR Pro Tennis Series Zadar Women | 2021/08/09 09:30 | Reka K Matko v Ema Bolebruchova | 6-3,6-3 |
| UTR Pro Tennis Series Zadar Women | 2021/08/08 09:30 | Iulia Andreea Ionescu v Ema Bolebruchova | 3-6,6-2,6-1 |
| UTR Pro Tennis Series Zadar Women | 2021/08/07 09:30 | Lea Jurkovic v Ema Bolebruchova | 2-6,1-5 |
| UTR Pro Tennis Series Zadar Women | 2021/08/06 11:00 | Ema Bolebruchova v Ema Bubalo | 1-6,6-1,6-4 |
| UTR Pro Tennis Series Zadar Women | 2021/08/04 13:30 | Ema Bolebruchova v Zuzana Zlochova | 0-6,0-6 |
| UTR Pro Tennis Series Zadar Women | 2021/08/02 09:30 | Tamara Malesevic v Ema Bolebruchova | 6-1,6-0 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/25 08:00 | Nikola Breckova v Ema Bolebruchova | 6-2,6-3 |
| ITF W100 Contrexeville | 2021/07/04 15:00 | Estelle Cascino v Ema Bolebruchova | 6-2,6-1 |