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