| ITF - Prokuplje W25 | 06/22 08:00 | 25 | Lola Radivojevic v Ekaterina Kazionova | 2-6,6-3,6-2 | |
| UTR Pro Tennis Series - Mulheim - Kobiety | 06/13 12:00 | - | Daniela Ciobanu v Ekaterina Kazionova | 6-1,3-6,6-3 | |
| WTA Berlin | 06/11 10:15 | 14 | [76] Xinyu Wang v Ekaterina Kazionova [329] | 6-4,6-1 | |
| ITF - Biarritz W60 | 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 - Osijek W25 | 05/12 09:50 | 26 | Mariana Drazic v Ekaterina Kazionova | 6-2,6-3 | |
| ITF - Osijek W25 | 05/11 10:00 | 25 | Anna Gabric v Ekaterina Kazionova | Retired | |
| ITF - Split W25 | 05/05 07:55 | 26 | Lucija Ciric Bagaric v Ekaterina Kazionova | Retired | |
| ITF - Split W25 | 05/04 11:30 | 25 | Sara Svetac v Ekaterina Kazionova | 4-6,5-7 | |
| ITF - Calvi W25 | 04/13 14:40 | 25 | [326] Ekaterina Kazionova v Tessah Andrianjafitrimo [151] | 2-6,0-6 | |
| ITF - Pretoria W25 | 04/07 09:45 | 26 | [151] Tessah Andrianjafitrimo v Ekaterina Kazionova [329] | 6-4,6-2 | |
| ITF - Pretoria W25 | 04/06 08:00 | 25 | [298] Katharina Hobgarski v Ekaterina Kazionova [329] | 2-6,4-6 | |
| ITF - Pretoria W60 | 03/30 12:15 | 25 | [330] Ekaterina Kazionova v Richel Hogenkamp [209] | 4-6,4-6 | |
| ITF - Nur-Sultan W25 | 03/03 05:35 | 26 | Ekaterina Kazionova v Mariia Tkacheva | 2-6,4-6 | |
| ITF - Nur-Sultan W25 | 03/02 12:10 | 25 | [266] Anna Siskova v Ekaterina Kazionova [282] | 3-6,2-6 | |
| ITF - Nur-Sultan W60 | 02/24 07:40 | 26 | Ekaterina Kazionova v Aliona Bolsova | 3-6,5-7 | |
| ITF - Nur-Sultan W60 | 02/23 10:10 | 25 | Zhibek Kulambayeva v Ekaterina Kazionova | 6-1,6-7,3-6 | |
| WTA St. Petersburg | 02/06 12:35 | 19 | [301] Ekaterina Kazionova v Bernarda Pera [100] | 2-6,1-6 | |
| WTA St. Petersburg | 02/05 19:45 | 45 | [129] Anastasia Gasanova v Ekaterina Kazionova [301] | 4-6,6-7 | |
| ITF - Monastir W25 | 01/12 13:00 | 25 | Arlinda Rushiti v Ekaterina Kazionova | 5-7,6-2,6-3 | |
| WTA Seoul | 12/25 05:45 | 28 | [98] Kristina Mladenovic v Ekaterina Kazionova [356] | 3-6,7-5,7-6 | |
| WTA Seoul | 12/24 02:00 | 27 | [356] Ekaterina Kazionova v Linda Fruhvirtova [305] | 6-3,5-7,7-6 | |
| WTA Seoul | 12/22 04:05 | 26 | [170] Reka-Luca Jani v Ekaterina Kazionova [356] | 5-7,2-6 | |
| WTA Seoul | 12/20 11:25 | 25 | Dabin Kim v Ekaterina Kazionova | 2-6,3-6 | |
| ITF - Jablonec nad Nisou W25 | 11/30 12:25 | 25 | Darya Astakhova v Ekaterina Kazionova | 6-2,6-1 | |
| ITF - Milovice W25 | 11/25 09:00 | 26 | [360] Ekaterina Kazionova v Dea Herdzelas [237] | 1-6,6-3,2-6 | |
| ITF - Milovice W25 | 11/24 09:00 | 25 | [341] Malene Helgo v Ekaterina Kazionova [360] | 2-6,6-3,3-6 | |
| ITF - Milovice W25 | 11/22 09:00 | 54 | Ekaterina Kazionova v Lucie Urbanova | 6-3,6-3 | |
| ITF - Milovice W25 | 11/21 08:00 | 54 | Ekaterina Kazionova v Ivana Sebestova | 6-2,6-1 | |
| ITF - Petange W25 | 11/15 08:00 | 44 | Ekaterina Kazionova v Sandy Marti | 2-6,4-6 |