Stadium: Court 3 Round: 27 Ground: Clay
| ITF Women Santa Margherita | 2018/03/14 14:35 | Elitsa Kostova v Sofia Shapatava | 7-5,7-5 |
| WTA Acapulco Qual | 2018/02/25 03:20 | Rebecca Peterson v Elitsa Kostova | 7-5,6-1 |
| ITF Women Rancho Santa Fe | 2018/02/23 20:10 | Elitsa Kostova v Kurumi Nara | 6-7,0-6 |
| ITF Women Rancho Santa Fe | 2018/02/22 23:40 | Danielle Lao v Elitsa Kostova | 6-4,1-6,3-6 |
| ITF Women Rancho Santa Fe | 2018/02/21 20:30 | Elitsa Kostova v Ashley Lahey | 4-6,6-3,6-1 |
| ITF Women Surprise | 2018/02/15 20:45 | Julia Boserup v Elitsa Kostova | 7-5,3-6,6-1 |
| WTA Newport Beach | 2018/01/23 18:00 | Rebecca Peterson v Elitsa Kostova | 4-6,6-3,7-5 |
| WTA Newport Beach Qual | 2018/01/21 18:00 | Caroline Dolehide v Elitsa Kostova | 4-6,4-6 |
| ITF Women Santa Margherita | 2018/03/15 15:00 | Anastasia Grymalska v Cagla Buyukakcay | 7-5,7-6 |
| ITF Women Santa Margherita | 2018/03/14 13:00 | Panna Udvardy v Anastasia Grymalska | 2-6,3-6 |
| ITF Women Santa Margherita Qual | 2018/03/13 13:00 | Anastasia Grymalska v Claudia Giovine | 6-1,6-3 |
| ITF Women Hammamet | 2018/03/04 09:00 | Anastasia Grymalska v Andreea Amalia Rosca | 2-6,2-6 |
| ITF Women Hammamet | 2018/03/03 09:00 | Anastasia Grymalska v Maria Marfutina | 6-2,7-5 |
| ITF Women Hammamet | 2018/03/02 09:00 | Anastasia Grymalska v Mia Nicole Eklund | 6-3,6-1 |
| ITF Women Hammamet | 2018/02/28 10:20 | Anastasia Grymalska v Clara Burel | 6-3,7-6 |
| ITF Women Hammamet | 2018/02/24 09:00 | Anastasia Grymalska v Margot Yerolymos | 4-6,3-6 |