Stadium: Court 4 Round: 28 Ground: Clay
| WTA Hobart Qual | 2017/01/06 04:00 | Pereira, Teliana v Kostova, Elitsa | 7-5,4-6,6-3 |
| ITF W25 Santa Margherita | 2019/10/04 12:00 | Carolina Alves v Kostova, Elitsa | 3-6,4-6 |
| ITF W25 Santa Margherita | 2019/10/03 12:00 | Detiuc, Anastasia v Kostova, Elitsa | 4-6,6-4,1-6 |
| ITF W25 Santa Margherita | 2019/10/02 14:20 | Melania Delai v Kostova, Elitsa | 0-6,0-6 |
| ITF W60 Caldas da Rainha | 2019/09/25 12:30 | Kostova, Elitsa v Ylena In-Albon | 4-6,2-6 |
| ITF W60 Meitar | 2019/09/13 09:00 | Kostova, Elitsa v Katharina Hobgarski | 6-0,3-6,1-6 |
| ITF W60 Meitar | 2019/09/12 08:10 | Kostova, Elitsa v Lemoine, Quirine | 6-2,7-6 |
| ITF W60 Meitar | 2019/09/11 14:00 | Kostova, Elitsa v Simmonds, Chanel | 6-2,6-3 |
| ITF W60 Meitar | 2019/09/10 12:35 | Kostova, Elitsa v Ilona-Georgiana Ghioroaie | 6-3,6-0 |
| ITF W25 Santa Margherita | 2019/10/04 12:00 | Angelica Moratelli v Pereira, Teliana | 6-3,1-6,3-6 |
| ITF W25 Santa Margherita | 2019/10/03 14:40 | Pereira, Teliana v Di Giuseppe, Martina | 3-6,6-3,6-2 |
| ITF W25 Santa Margherita | 2019/10/02 15:40 | Goncalves, Paula Cristina v Pereira, Teliana | 2-6,1-6 |
| ITF W25 Santa Margherita | 2019/10/01 13:20 | Tatiana Pieri v Pereira, Teliana | 4-6,3-6 |
| ITF W25 Santa Margherita | 2019/09/30 12:00 | Pezzulla, Alessandra v Pereira, Teliana | 0-6,0-6 |
| ITF W60 Hechingen | 2019/08/08 09:00 | Pereira, Teliana v Stokke, Melanie | 5-7,0-6 |
| ITF W60 Hechingen | 2019/08/05 15:20 | Pereira, Teliana v Grimm, Chiara | 6-3,7-5 |
| Bad Saulgau, Simples W-ITF-GER-12A | 2019/08/02 13:50 | Gerlach, Katharina v Pereira, Teliana | 7-5,6-3 |