Stadium: Court 1 Round: 28
| WTA Anning | 2018/05/03 04:00 | Shuai Peng v Elitsa Kostova | 6-1,6-0 |
| WTA Anning | 2018/05/02 03:00 | Elitsa Kostova v Dalila Jakupovic | 7-6,0-6,6-1 |
| WTA Anning | 2018/05/01 03:00 | Elitsa Kostova v Jacqueline Cako | 6-4,6-1 |
| WTA Istanbul Qual | 2018/04/23 13:20 | Arantxa Rus v Elitsa Kostova | 6-2,6-0 |
| WTA Istanbul Qual | 2018/04/22 12:00 | Elitsa Kostova v Misaki Doi | 6-4,6-2 |
| WTA Bogota | 2018/04/13 14:00 | Dalila Jakupovic v Elitsa Kostova | 6-2,6-2 |
| WTA Bogota | 2018/04/11 21:00 | Nao Hibino v Elitsa Kostova | 2-6,4-6 |
| WTA Bogota Qual | 2018/04/08 17:30 | Nadia Podoroska v Elitsa Kostova | 4-6,4-6 |
| ITF Women Trnava | 2018/05/18 10:25 | Anhelina Kalinina v Rebecca Sramkova | 6-2,6-4 |
| ITF Women Trnava | 2018/05/16 09:00 | Rebecca Sramkova v Anna Karolina Schmiedlova | 7-6,7-6 |
| WTA Prague Qual | 2018/04/29 09:00 | Tamara Korpatsch v Rebecca Sramkova | 6-4,3-6,6-4 |
| WTA Prague Qual | 2018/04/28 10:25 | Tessah Andrianjafitrimo v Rebecca Sramkova | 3-6,2-6 |
| ITF Women Istanbul | 2018/04/11 13:10 | Rebecca Sramkova v Viktoria Hruncakova | 6-7,3-6 |
| ITF Women Istanbul | 2018/04/10 12:00 | Berfu Cengiz v Rebecca Sramkova | 2-6,1-6 |
| ITF Women Antalya | 2018/03/25 08:00 | Rebecca Sramkova v Cornelia Lister | 6-1,7-5 |
| ITF Women Antalya | 2018/03/24 08:00 | Andreea Amalia Rosca v Rebecca Sramkova | 5-7,6-4,4-6 |