Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF W15 Bad Waltersdorf | 2021/08/27 09:25 | Yeon Woo Ku v Katarina Kuzmova | 6-2,4-6,7-6 |
| ITF W15 Bad Waltersdorf | 2021/08/26 08:35 | Katarina Kuzmova v Caijsa W Hennemann | 6-4,3-6,6-4 |
| ITF W15 Bad Waltersdorf | 2021/08/25 12:05 | Tamara Kostic v Katarina Kuzmova | 5-7,4-6 |
| ITF W15 Warmbad-Villach | 2021/08/20 08:55 | Katarina Kuzmova v Yeon Woo Ku | 0-6,3-6 |
| ITF W15 Warmbad-Villach | 2021/08/19 08:00 | Romana Cisovska v Katarina Kuzmova | 1-6,6-2,6-7 |
| ITF W15 Warmbad-Villach | 2021/08/18 10:45 | Naima Karamoko v Katarina Kuzmova | 6-3,1-6,1-6 |
| ITF W15 Bratislava | 2021/08/11 08:00 | Katarina Kuzmova v Elena Malygina | 2-6,2-6 |
| ITF W15 Prokuplje | 2021/07/06 09:00 | Victoria Mboko v Katarina Kuzmova | 6-2,5-7,6-1 |
| ITF W25 Almaty | 2021/08/24 06:50 | Krupenina, Maria v Alisa Kummel | 1-6,6-4,2-10 |
| ITF W15 Moscow | 2021/07/22 07:00 | Krupenina, Maria v Eva Garkusha | 0-6,1-6 |
| ITF W60 Nur-Sultan | 2021/07/13 08:50 | Gabueva, Angelina v Krupenina, Maria | 7-5,6-4 |
| ITF W60 Nur-Sultan | 2021/07/12 08:10 | Elizaveta Gnilozubova v Krupenina, Maria | 1-6,2-6 |
| ITF W25 Kazan | 2021/06/01 10:10 | Krupenina, Maria v Anna Ureke | 1-6,3-6 |
| ITF W25 Kazan | 2021/05/31 11:05 | Krupenina, Maria v Solomatina, Arina | 6-1,6-0 |
| ITF W15 Tbilisi | 2021/05/18 05:30 | Bereznyak, Shelly v Krupenina, Maria | 6-1,6-3 |
| ITF - W15 Shymkent | 2021/04/14 10:30 | Krupenina, Maria v Margarita Ignatjeva | 4-6,3-6 |