Stadium: Court 7 Round: 25 Ground: Clay
| ITF Women Zagreb | 2018/09/02 11:05 | Jani, Reka-Luca v Paula Ormaechea | 2-6,1-6 |
| ITF Women Budapest | 2018/08/28 09:00 | Iga Swiatek v Jani, Reka-Luca | 0-6,6-2,6-1 |
| ITF Women LPD Gran Canaria | 2018/08/15 09:00 | Saez Larra, Olga v Jani, Reka-Luca | 6-2,6-0 |
| ITF Women LPD Gran Canaria | 2018/08/14 09:00 | Jani, Reka-Luca v Ekani, Irys | 7-5,7-5 |
| ITF Women Baja | 2018/07/27 13:00 | Paula Ormaechea v Jani, Reka-Luca | 4-6,7-6,6-3 |
| ITF Women Baja | 2018/07/26 11:05 | Jani, Reka-Luca v Lina Gjorcheska | 3-6,6-3,6-2 |
| ITF Women Baja | 2018/07/25 13:00 | Jani, Reka-Luca v Miriam Bulgaru | 6-0,6-2 |
| ITF Women Baja | 2018/07/24 12:00 | Jani, Reka-Luca v Takamura, Satsuki | 6-0,6-4 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/28 12:00 | Kostova, Elitsa v Samsonova, Liudmila | 3-6,4-6 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/27 12:00 | Kostova, Elitsa v Irene Burillo Escorihuela | 6-0,5-7,6-2 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/25 17:15 | Kostova, Elitsa v Jule Niemeier | 7-5,6-1 |
| ITF Women Saint Malo | 2018/09/18 10:20 | Kostova, Elitsa v Cagla Buyukakcay | 6-7,4-6 |
| Biarritz, Simples W-WITF-FRA-17A | 2018/09/12 13:25 | Witthoeft, Carina v Kostova, Elitsa | 6-4,7-6 |
| ITF Women Zagreb | 2018/09/06 16:50 | Kostova, Elitsa v Tena Lukas | 6-1,2-6,3-6 |
| ITF Women Zagreb | 2018/09/05 16:15 | Kostova, Elitsa v Bukta, Agnes | 6-3,6-4 |
| ITF Women Budapest | 2018/08/28 09:00 | Raluca Georgiana Serban v Kostova, Elitsa | 6-2,7-5 |