| WTA Seoul | 09/17 02:15 | 14 | [167] Ji-Hee Choi v Ekaterina Kazionova [306] | 6-3,3-6,4-6 | |
| WTA - Chennai | 09/10 04:30 | 45 | [423] Olivia Tjandramulia v Ekaterina Kazionova [313] | 6-3,6-1 | |
| ITF - W25 Vrnjacka Banja | 08/18 10:05 | 26 | Ekaterina Kazionova v Lexie Stevens | 2-6,2-6 | |
| ITF - W25 Vrnjacka Banja | 08/17 15:50 | 25 | Ekaterina Kazionova v Funa Kozaki | 6-3,6-3 | |
| ITF - W25 Ust-Kamenogorsk | 08/12 04:00 | 27 | Ekaterina Kazionova v Tatiana Barkova | 3-6,1-6 | |
| ITF - W25 Ust-Kamenogorsk | 08/11 09:00 | 26 | Ekaterina Kazionova v Arina Solomatina | 6-4,6-7,6-3 | |
| ITF - W25 Ust-Kamenogorsk | 08/10 07:05 | 25 | Ekaterina Kazionova v Vladislava Andreevskaya | 6-0,6-0 | |
| ITF - W60 Nur-Sultan | 07/21 04:30 | 26 | Ekaterina Kazionova v Sofya Lansere | 2-6,1-6 | |
| ITF - W60 Nur-Sultan | 07/20 08:25 | 25 | Ekaterina Kazionova v Ekaterina Maklakova | 2-6,6-2,6-2 | |
| ITF - W25 Nur-Sultan | 07/13 06:35 | 25 | Anna Kubareva v Ekaterina Kazionova | 6-3,6-2 | |
| ITF - W25 Prokuplje | 06/22 08:00 | 25 | Lola Radivojevic v Ekaterina Kazionova | 2-6,6-3,6-2 | |
| UTR - Pro Tennis Series - Mulheim - ženy | 06/13 12:00 | - | Daniela Ciobanu v Ekaterina Kazionova | 6-1,3-6,6-3 | |
| WTA - Berlín | 06/11 10:15 | 14 | [76] Xinyu Wang v Ekaterina Kazionova [329] | 6-4,6-1 | |
| ITF - W60 Biarritz | 06/08 09:00 | 25 | Ekaterina Kazionova v Mina Hodzic | 7-5,2-6,1-6 | |
| WTA - Rabat | 05/14 12:20 | 14 | [408] Tara Moore v Ekaterina Kazionova [327] | 1-6,6-4,6-0 | |
| ITF - W25 Osijek | 05/12 09:50 | 26 | Mariana Drazic v Ekaterina Kazionova | 6-2,6-3 | |
| ITF - W25 Osijek | 05/11 10:00 | 25 | Anna Gabric v Ekaterina Kazionova | Retired | |
| ITF - W25 Split | 05/05 07:55 | 26 | Lucija Ciric Bagaric v Ekaterina Kazionova | Retired | |
| ITF - W25 Split | 05/04 11:30 | 25 | Sara Svetac v Ekaterina Kazionova | 4-6,5-7 | |
| ITF - W25 - Calvi | 04/13 14:40 | 25 | [326] Ekaterina Kazionova v Tessah Andrianjafitrimo [151] | 2-6,0-6 | |
| ITF - W25 Pretoria | 04/07 09:45 | 26 | [151] Tessah Andrianjafitrimo v Ekaterina Kazionova [329] | 6-4,6-2 | |
| ITF - W25 Pretoria | 04/06 08:00 | 25 | [298] Katharina Hobgarski v Ekaterina Kazionova [329] | 2-6,4-6 | |
| ITF - W60 Pretoria | 03/30 12:15 | 25 | [330] Ekaterina Kazionova v Richel Hogenkamp [209] | 4-6,4-6 | |
| ITF - W25 Nur-Sultan | 03/03 05:35 | 26 | Ekaterina Kazionova v Mariia Tkacheva | 2-6,4-6 | |
| ITF - W25 Nur-Sultan | 03/02 12:10 | 25 | [266] Anna Siskova v Ekaterina Kazionova [282] | 3-6,2-6 | |
| ITF - W60 Nur-Sultan | 02/24 07:40 | 26 | Ekaterina Kazionova v Aliona Bolsova | 3-6,5-7 | |
| ITF - W60 Nur-Sultan | 02/23 10:10 | 25 | Zhibek Kulambayeva v Ekaterina Kazionova | 6-1,6-7,3-6 | |
| WTA - Petrohrad | 02/06 12:35 | 19 | [301] Ekaterina Kazionova v Bernarda Pera [100] | 2-6,1-6 | |
| WTA - Petrohrad | 02/05 19:45 | 45 | [129] Anastasia Gasanova v Ekaterina Kazionova [301] | 4-6,6-7 | |
| ITF - W25 Monastir | 01/12 13:00 | 25 | Arlinda Rushiti v Ekaterina Kazionova | 5-7,6-2,6-3 |