Stadium: Court 4 Round: 25 Ground: Clay
| ITF - Kyiv W25 | 2021/07/21 08:55 | Ganna Poznikhirenko v Lyubov Kostenko | 6-1,6-0 |
| ITF - Antalya W15 | 2021/07/01 06:25 | Claudia Hoste Ferrer v Lyubov Kostenko | 6-4,3-6,7-6 |
| ITF - Antalya W15 | 2021/06/29 11:25 | Ani Vangelova v Lyubov Kostenko | 3-6,3-6 |
| ITF - Antalya W15 | 2021/06/10 08:50 | Vanda Lukacs v Lyubov Kostenko | 6-1,6-1 |
| ITF - Antalya W15 | 2021/06/09 11:35 | Ivania Martinich v Lyubov Kostenko | 6-2,2-6,2-6 |
| ITF - Antalya W15 | 2021/06/03 07:30 | Federica Bilardo v Lyubov Kostenko | 7-5,6-2 |
| ITF - Antalya W15 | 2021/06/02 08:25 | Lyubov Kostenko v Taylor Ng | 6-4,6-2 |
| ITF - Sharm El Sheikh W15 | 2021/04/07 07:00 | Lyubov Kostenko v Andre Lukosiute | 2-6,4-6 |