| WTA Nanchang | 09/11 08:50 | 26 | [74] Kateryna Kozlova v Dalila Jakupovic [154] | 6-2,6-2 | |
| WTA Nanchang | 09/09 08:30 | 25 | [76] Kateryna Kozlova v Greta Arn [347] | 6-2,6-1 | |
| US Open - Femenino | 08/27 19:10 | 23 | [116] Taylor Townsend v Kateryna Kozlova [76] | 3-6,6-3,6-2 | |
| WTA Nueva York | 08/18 20:05 | 25 | [73] Kateryna Kozlova v Alize Cornet [60] | 4-6,2-6 | |
| WTA Cincinnati | 08/10 19:15 | 45 | [70] Kateryna Kozlova v Iga Swiatek [65] | 2-6,7-6,4-6 | |
| WTA Toronto | 08/03 16:20 | 44 | [69] Kateryna Kozlova v Sachia Vickery [149] | 2-6,3-6 | |
| WTA Lausanne | 07/15 12:00 | 25 | Kateryna Kozlova v Varvara Gracheva | Cancelled | |
| Wimbledon - Femenino | 07/02 11:25 | 23 | [66] Kateryna Kozlova v Lauren Davis [95] | 3-6,2-6 | |
| Open de Francia - Femenino | 05/29 16:35 | 24 | Kateryna Kozlova v Elina Svitolina | Walkover | |
| Open de Francia - Femenino | 05/26 13:05 | 23 | [85] Bernarda Pera v Kateryna Kozlova [67] | 2-6,6-7 | |
| WTA Madrid | 05/08 14:00 | 26 | [18] Belinda Bencic v Kateryna Kozlova [85] | 6-0,6-2 | |
| WTA Madrid | 05/07 14:15 | 25 | [85] Kateryna Kozlova v Karolina Pliskova [5] | 7-5,2-6,6-4 | |
| WTA Madrid | 05/05 16:00 | 24 | [84] Kateryna Kozlova v Shuai Zhang [42] | 6-3,6-2 | |
| WTA Madrid | 05/04 09:00 | 46 | [84] Kateryna Kozlova v Aliona Bolsova [140] | 6-3,6-3 | |
| WTA Madrid | 05/03 12:10 | 45 | [57] Ekaterina Alexandrova v Kateryna Kozlova [84] | 4-6,4-6 | |
| WTA Estambul | 04/25 14:00 | 26 | [91] Kateryna Kozlova v Kristina Mladenovic [66] | 1-6,2-6 | |
| WTA Estambul | 04/24 09:10 | 25 | [91] Kateryna Kozlova v Anastasia Potapova [74] | Retired | |
| WTA Estambul | 04/22 10:30 | 64 | [91] Kateryna Kozlova v Alexandra Dulgheru [167] | 6-2,6-4 | |
| WTA Estambul | 04/21 08:00 | 45 | [93] Kateryna Kozlova v Berfu Cengiz [326] | 6-0,6-2 | |
| WTA Charleston | 04/03 15:25 | 25 | [10] Aryna Sabalenka v Kateryna Kozlova [99] | 3-6,6-3,6-3 | |
| WTA Charleston | 04/02 17:00 | 24 | [99] Kateryna Kozlova v Kristyna Pliskova [93] | 7-5,6-4 | |
| WTA Charleston | 03/31 17:25 | 46 | [101] Kateryna Kozlova v Nicole Melichar [12] | 6-1,6-3 | |
| WTA Charleston | 03/30 18:40 | 45 | Kateryna Kozlova v Jasmin Jebawy | 6-1,6-1 | |
| WTA Miami | 03/20 14:00 | 45 | [138] Monica Niculescu v Kateryna Kozlova [101] | 6-2,6-4 | |
| WTA Miami | 03/18 14:00 | 44 | [101] Kateryna Kozlova v Lin Zhu [95] | 0-6,6-4,6-2 | |
| WTA Indian Wells | 03/10 18:00 | 25 | [114] Kateryna Kozlova v Simona Halep [2] | 6-7,5-7 | |
| WTA Indian Wells | 03/08 23:40 | 24 | [34] Aliaksandra Sasnovich v Kateryna Kozlova [114] | 4-6,6-2,0-6 | |
| WTA Indian Wells | 03/06 20:30 | 23 | [42] Katerina Siniakova v Kateryna Kozlova [114] | 5-7,2-6 | |
| WTA Indian Wells | 03/05 20:45 | 45 | [79] Sara Sorribes Tormo v Kateryna Kozlova [114] | 1-6,6-7 | |
| WTA Indian Wells | 03/04 19:00 | 44 | [236] Ashley Kratzer v Kateryna Kozlova [114] | 4-6,1-6 |
Wikipedia - Kateryna Kozlova
Kateryna Kozlova (Mykolaiv, Ucrania, 20 de febrero de 1994) es una jugadora de tenis ucraniana.
Su mejor clasificación en la WTA fue la número 62 del mundo, lograda en febrero de 2018. En dobles alcanzó número 139 del mundo, que llegó el 22 de octubre de 2012. Hasta la fecha, ha ganado cinco individuales y trece títulos de dobles en el ITF tour.