Stadium: Court 6 Round: 26 Ground: Hardcourt outdoor
| ITF W25 Kazan | 2021/03/10 08:30 | Anastasia Zakharova v Ekaterina Kazionova | 4-6,2-6 |
| ITF W25 Moscow | 2021/02/23 10:40 | Ekaterina Kazionova v Ekaterina Maklakova | 6-3,6-7,9-11 |
| ITF W25 Moscow | 2021/02/22 09:40 | Ekaterina Kazionova v Anna Ukolova | 4-6,6-4,15-13 |
| ITF W25 Altenkirchen | 2021/02/14 14:30 | Ekaterina Kazionova v Yuriko Lily Miyazaki | 3-6,2-6 |
| ITF W15 Shymkent | 2021/02/12 03:55 | Ekaterina Kazionova v Anastasia Tikhonova | 6-7,6-4,5-7 |
| ITF W15 Shymkent | 2021/02/11 04:00 | Ekaterina Kazionova v Katarina Kuzmova | 7-6,6-3 |
| ITF W15 Shymkent | 2021/02/10 06:35 | Ekaterina Kazionova v Aruzhan Sagandikova | 6-2,6-3 |
| ITF W15 Shymkent | 2021/02/06 04:00 | Anastasia Tikhonova v Ekaterina Kazionova | 6-3,6-4 |
| ITF W25 Kazan | 2021/03/10 12:55 | Daria Kudashova v Ekaterina Yashina | 2-6,5-7 |
| ITF W25 Kazan | 2021/03/09 10:50 | Ekaterina Yashina v Alina Shcherbinina | 6-0,6-4 |
| ITF W25 Kazan | 2021/03/08 08:45 | Ekaterina Yashina v Alina Silich | 6-4,6-7,10-5 |
| ITF W25 Moscow | 2021/02/25 09:25 | Berfu Cengiz v Ekaterina Yashina | 7-6,6-2 |
| ITF W25 Moscow | 2021/02/24 11:35 | Yaroslava Bartashevich v Ekaterina Yashina | 6-3,5-7,2-6 |
| ITF W25 Moscow | 2021/02/23 11:00 | Anna Morgina v Ekaterina Yashina | 2-6,1-6 |
| ITF W25 Moscow | 2021/02/22 10:55 | Mariia Tkacheva v Ekaterina Yashina | 1-6,5-7 |
| ITF W15 Villena | 2021/02/14 09:45 | Laura Pigossi v Ekaterina Yashina | 3-6,6-0,6-4 |