Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF W15 Tbilisi | 2021/05/20 05:55 | Zoe Howard v Nastja Kolar | 4-6,6-3,7-5 |
| ITF W15 Tbilisi | 2021/05/19 06:00 | Laetitia Pulchartova v Nastja Kolar | 2-6,0-6 |
| UTR Pro Pazardzhik Women | 2021/05/15 06:00 | Nastja Kolar v Darja Semenistaja | 4-6,4-6 |
| UTR Pro Pazardzhik Women | 2021/05/13 06:00 | Nastja Kolar v Rositsa Dencheva | 6-2,5-3 |
| UTR Pro Pazardzhik Women | 2021/05/12 08:30 | Nastja Kolar v Silvia Maria Costache | 6-2,6-0 |
| UTR Pro Pazardzhik Women | 2021/05/11 11:30 | Nastja Kolar v Gebriela Mihaylova | 6-3,5-2 |
| UTR Pro Pazardzhik Women | 2021/05/10 08:30 | Nastja Kolar v Doroteja Petrovic | 6-0,5-1 |
| ITF W15 Cairo | 2021/04/28 08:00 | Nicole Fossa Huergo v Nastja Kolar | 6-1,6-1 |