Stadium: Court 3 Round: 26 Ground: Clay
| ITF Women Santa Margherita | 2018/09/25 17:15 | Elitsa Kostova v Jule Niemeier | 7-5,6-1 |
| ITF Women Saint Malo | 2018/09/18 10:20 | Elitsa Kostova v Cagla Buyukakcay | 6-7,4-6 |
| ITF Women Biarritz | 2018/09/12 13:25 | Carina Witthoeft v Elitsa Kostova | 6-4,7-6 |
| ITF Women Zagreb | 2018/09/06 16:50 | Elitsa Kostova v Tena Lukas | 6-1,2-6,3-6 |
| ITF Women Zagreb | 2018/09/05 16:15 | Elitsa Kostova v Agnes Bukta | 6-3,6-4 |
| ITF Women Budapest | 2018/08/28 09:00 | Raluca Georgiana Serban v Elitsa Kostova | 6-2,7-5 |
| US Open Women | 2018/08/21 16:15 | Elitsa Kostova v Fiona Ferro | 1-6,7-5,4-6 |
| ITF Women Prague | 2018/07/27 10:40 | Elitsa Kostova v Richel Hogenkamp | 6-7,7-6,2-6 |
| ITF Women Santa Margherita | 2018/09/26 12:00 | Tayisiya Morderger v Irene Burillo Escorihuela | 6-3,6-7,1-6 |
| ITF Women Santa Margherita | 2018/09/24 12:00 | Irene Burillo Escorihuela v Sofia Shapatava | 4-6,2-6 |
| ITF Women Santa Margherita | 2018/09/23 14:00 | Irene Burillo Escorihuela v Mira Antonitsch | 3-6,6-2,6-4 |
| ITF Women Dobrich | 2018/09/19 07:00 | Irene Burillo Escorihuela v Katarzyna Piter | 5-7,3-6 |
| ITF Women Santa Margherita | 2018/09/11 15:05 | Irene Burillo Escorihuela v Susan Bandecchi | 1-6,5-7 |
| ITF Women Bagnatica | 2018/08/25 07:30 | Simona Waltert v Irene Burillo Escorihuela | 6-7,6-2,6-1 |
| ITF Women LPD Gran Canaria | 2018/08/15 10:40 | Irene Burillo Escorihuela v Ulrikke Eikeri | 6-3,2-6,3-6 |
| ITF Women LPD Gran Canaria | 2018/08/14 14:30 | Irene Burillo Escorihuela v Anna Pribylova | 7-5,6-2 |