Stadium: Court 6 Round: 25 Ground: Clay
| ITF W25 SM de Montbui | 2019/06/02 09:30 | Arina Rodionova v Kostova, Elitsa | 5-7,3-6 |
| ITF W25 SM de Montbui | 2019/06/01 11:00 | Nadia Podoroska v Kostova, Elitsa | 3-6,3-6 |
| ITF W25 SM de Montbui | 2019/05/31 13:45 | Kostova, Elitsa v Xiyu Wang | 7-6,6-1 |
| ITF W25 SM de Montbui | 2019/05/30 10:15 | Kostova, Elitsa v Lucia Cortez Llorca | 6-0,6-1 |
| ITF W25 SM de Montbui | 2019/05/29 11:20 | Kostova, Elitsa v Andrea Gamiz | 6-0,6-1 |
| Nuremberg, Germany | 2019/05/18 14:05 | Katharina Hobgarski v Kostova, Elitsa | 2-6,6-2,6-2 |
| Les Franqueses Del Valles, Simples W-ITF-ESP-04A | 2019/05/04 08:00 | Kostova, Elitsa v Burrage, Jodie Anna | 3-6,2-6 |
| Les Franqueses Del Valles, Simples W-ITF-ESP-04A | 2019/05/02 10:20 | Kostova, Elitsa v Guerrero Alvarez, Eva | 6-2,6-4 |
| ITF W25 Prerov | 2019/06/11 08:00 | Rosa Vicens Mas v Nikola Tomanova | 6-7,1-6 |
| ITF W25 Prerov | 2019/06/10 08:00 | Sofia Milatova v Nikola Tomanova | 1-6,0-6 |
| Torun, Singles W-ITF-POL-01A | 2019/06/05 10:35 | Marie Benoit v Nikola Tomanova | 6-4,6-4 |
| Torun, Singles W-ITF-POL-01A | 2019/06/04 11:35 | Nikola Tomanova v Escauriza, Lara | 6-4,7-5 |
| Torun, Singles W-ITF-POL-01A | 2019/06/03 14:15 | Halbauer, Elizabeth v Nikola Tomanova | 6-3,4-6,7-10 |
| ITF - W15 Antalya | 2019/04/20 07:30 | Schaeder, Laura v Nikola Tomanova | 6-4,1-6,6-3 |
| ITF - W15 Antalya | 2019/04/19 07:30 | Nikola Tomanova v Anna Kubareva | 6-4,2-6,6-2 |
| ITF - W15 Antalya | 2019/04/18 07:30 | Pribylova, Anna v Nikola Tomanova | 1-6,1-6 |