Stadium: Court 6 Round: 44 Ground: Hardcourt outdoor
| ITF W15 Sozopol | 2021/10/11 07:00 | Daria Zelinskaya v Maria AM Popescu | 7-6,6-2 |
| ITF W15 Sozopol | 2021/10/04 09:30 | Daria Zelinskaya v Anca Alexia Todoni | 7-5,1-6,3-10 |
| ITF W25 Almaty | 2021/08/25 06:40 | Zhibek Kulambayeva v Daria Zelinskaya | 6-3,6-4 |
| ITF W25 Almaty | 2021/08/24 07:00 | Daria Zelinskaya v Stanislava Bobrovnikova | 6-2,6-2 |
| ITF W15 Monastir | 2021/08/10 08:30 | Daria Zelinskaya v Margaux Komano | 6-3,1-6,7-10 |
| ITF W15 Monastir | 2021/08/09 09:30 | Daria Zelinskaya v Beatrice Stagno | 6-2,7-6 |
| ITF W15 Monastir | 2021/08/02 15:00 | Kariann Pierre-Louis v Daria Zelinskaya | 6-3,6-3 |
| ITF W15 Moscow | 2021/07/21 09:30 | Daria Zelinskaya v Anna Morgina | 7-5,2-6,6-7 |
| ITF W15 Sozopol | 2021/10/11 07:00 | Mija Ljubic v Darya Schwartzman | 3-6,6-3,3-10 |
| ITF W15 Sozopol | 2021/10/05 07:30 | Briana Szabo v Darya Schwartzman | 6-1,6-1 |
| ITF W15 Bad Waltersdorf | 2021/08/23 12:00 | Darya Schwartzman v Barbara Dessolis | 4-6,3-6 |
| ITF W15 Bad Waltersdorf | 2021/08/22 11:30 | Irina Dshandshgava v Darya Schwartzman | 3-6,6-7 |
| ITF W15 Warmbad-Villach | 2021/08/16 07:00 | Alina Michalitsch v Darya Schwartzman | 7-5,6-2 |
| ITF W15 Bratislava | 2021/08/10 08:00 | Darya Schwartzman v Ivana Sebestova | 1-6,1-6 |
| ITF W15 Bratislava | 2021/08/09 10:00 | Margarita Ignatjeva v Darya Schwartzman | 2-6,6-3,7-10 |
| ITF W15 Antalya | 2021/06/29 06:30 | Aleksandra Pospelova v Darya Schwartzman | 6-1,6-3 |