| ITF W25 Vrnjacka Banja | 2021/08/15 07:00 | Sara Gvozdenovic v Eleonore Tchakarova | 1-6,2-6 |
| ITF W15 Prokuplje | 2021/06/27 07:00 | Sara Gvozdenovic v Bianca Jolie Fernandez | 0-6,2-6 |
| ITF W15 Banja Luka | 2021/05/31 09:30 | Mia Ristic v Sara Gvozdenovic | 6-1,6-2 |
| ITF W15 Antalya | 2020/12/15 11:00 | Maria Sara Popa v Sara Gvozdenovic | 6-0,6-2 |
| ITF W15 Antalya | 2020/12/06 07:00 | Maria Sara Popa v Sara Gvozdenovic | 7-6,6-2 |
| ITF W15 Antalya | 2020/11/30 11:30 | Sofia Milatova v Sara Gvozdenovic | 6-2,6-3 |
| ITF W15 Antalya | 2020/11/29 07:00 | Anastasia Mozgaleva v Sara Gvozdenovic | 4-6,1-6 |
| ITF Women Varna | 2020/09/07 07:30 | Mirela Shkumbova v Sara Gvozdenovic | 6-3,7-5 |
| UTR Pro Tennis Series Zadar Women | 2021/08/11 09:30 | Nastja Kolar v Ema Bolebruchova | 6-1,1-1 |
| 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 |