| ITF W15 Banja Luka | 2021/06/01 10:00 | Sara Mikaca v Timea Jaruskova | 1-6,3-6 |
| ITF W15 Sibenik | 2021/05/23 08:00 | Sara Mikaca v Adriana Rajkovic | 0-6,2-6 |
| ITF 15 Antalya - Femenino | 2021/05/04 07:00 | Katarina Kuzmova v Sara Mikaca | 6-1,6-4 |
| ITF 15 Antalya - Femenino | 2021/05/03 07:00 | Sara Mikaca v Melis Yasar | 7-5,6-1 |
| ITF 15 Antalya - Femenino | 2021/05/02 06:00 | Sara Mikaca v Julia Keranovic | 6-1,6-2 |
| ITF 15 Antalya - Femenino | 2021/04/25 07:00 | Sara Mikaca v Maileen Nuudi | 2-6,0-6 |
| ITF W25 Pärnu | 2021/08/05 08:30 | Anna Siskova v Nastja Kolar | 6-1,6-3 |
| ITF W25 Pärnu | 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 - Femenino | 2021/07/04 09:00 | Nastja Kolar v Oleksandra Oliynykova | 6-4,3-6,3-6 |
| UTR Pro Tennis Series - Ricany - Femenino | 2021/07/03 12:00 | Aneta Laboutkova v Nastja Kolar | 2-6,2-6 |
| UTR Pro Tennis Series - Ricany - Femenino | 2021/07/01 09:30 | Tereza Kolarova v Nastja Kolar | 4-6,1-6 |
| UTR Pro Tennis Series - Ricany - Femenino | 2021/06/30 11:00 | Katerina Filip v Nastja Kolar | 3-6,3-6 |