Stadium: Court 1 Round: 27 Ground: Clay
| Wimbledon Women Qual | 2018/06/26 10:00 | Jamie Loeb v Elitsa Kostova | 1-6,7-5,6-1 |
| ITF Women Manchester | 2018/06/13 10:00 | Viktorija Golubic v Elitsa Kostova | 6-3,6-4 |
| ITF Women Stare Splavy | 2018/06/09 12:30 | Elitsa Kostova v Rebecca Sramkova | 7-5,4-6,4-6 |
| ITF Women Stare Splavy | 2018/06/08 11:15 | Elitsa Kostova v Ani Mijacika | 6-2,2-6,6-4 |
| ITF Women Stare Splavy | 2018/06/07 09:30 | Elitsa Kostova v Anna Bondar | 6-3,3-6,6-1 |
| ITF Women Stare Splavy | 2018/06/06 09:50 | Elitsa Kostova v Martina Colmegna | 6-4,6-7,7-6 |
| French Open Women Qual | 2018/05/23 08:00 | Elitsa Kostova v Tamara Korpatsch | 4-6,6-2,3-6 |
| WTA Anning | 2018/05/03 04:00 | Shuai Peng v Elitsa Kostova | 6-1,6-0 |
| Wimbledon Women Qual | 2018/06/27 11:15 | Mariana Duque Marino v Richel Hogenkamp | 6-4,6-1 |
| Wimbledon Women Qual | 2018/06/26 10:00 | Junri Namigata v Richel Hogenkamp | 0-6,2-6 |
| ITF Women Ilkley | 2018/06/20 14:20 | Harriet Dart v Richel Hogenkamp | 6-3,6-0 |
| WTA Hertogenbosch | 2018/06/11 09:00 | Alison Van Uytvanck v Richel Hogenkamp | 6-1,6-2 |
| French Open Women | 2018/05/29 12:25 | Maria Sharapova v Richel Hogenkamp | 6-1,4-6,6-3 |
| French Open Women Qual | 2018/05/25 12:25 | Bianca Andreescu v Richel Hogenkamp | 3-6,6-7 |
| French Open Women Qual | 2018/05/24 11:35 | Ons Jabeur v Richel Hogenkamp | 6-7,7-5,5-7 |
| French Open Women Qual | 2018/05/22 13:40 | Miharu Imanishi v Richel Hogenkamp | 2-6,0-6 |