Stadium: COURT 2 Round: 25 Ground: Clay
| ITF - Moskwa W15 | 2021/07/20 07:00 | Ekaterina Kazionova v Victoria Mikhaylova | 6-4,6-0 |
| ITF - Moskwa W15 | 2021/07/19 08:00 | Ekaterina Kazionova v Nikol Mishieva | 6-2,6-0 |
| ITF - Nur-Sultan W60 | 2021/07/13 07:00 | Ekaterina Kazionova v Gozal Ainitdinova | 2-6,4-6 |
| ITF - Nur-Sultan W25 | 2021/07/07 09:40 | Maria Timofeeva v Ekaterina Kazionova | 6-2,2-6,6-2 |
| ITF - Madryt W25 | 2021/06/09 09:50 | Ekaterina Kazionova v Karman Kaur Thandi | 1-6,4-6 |
| ITF - Kazan W25 | 2021/06/02 07:00 | Ekaterina Kazionova v Shalimar Talbi | 3-6,4-6 |
| ITF - Bratysława W15 | 2021/03/17 11:15 | Ekaterina Kazionova v Anika Jaskova | 4-6,6-2,6-3 |
| ITF - Kazan W25 | 2021/03/11 13:50 | Ekaterina Kazionova v Ekaterina Yashina | 3-6,6-0,4-6 |