Stadium: Court 4 Round: 25
| ITF Women Budapest | 2018/08/27 11:00 | Raluca Georgiana Serban v Aleksandrina Naydenova | 6-2,6-3 |
| ITF Women Budapest | 2018/08/26 19:40 | Raluca Georgiana Serban v Cornelia Lister | 6-7,6-4,6-3 |
| ITF Women Budapest | 2018/08/25 12:50 | Raluca Georgiana Serban v Petra Krejsova | 6-4,6-2 |
| ITF Women Leipzig | 2018/08/16 10:30 | Raluca Georgiana Serban v Barbara Haas | 2-6,4-6 |
| ITF Women Leipzig | 2018/08/14 09:00 | Julia Wachaczyk v Raluca Georgiana Serban | 6-4,3-6,4-6 |
| ITF Women Koksijde | 2018/08/09 08:00 | Lucrezia Stefanini v Raluca Georgiana Serban | 6-2,7-6 |
| ITF Women Koksijde | 2018/08/07 11:50 | Karen Barritza v Raluca Georgiana Serban | 1-6,4-6 |
| ITF Women Stuttgart | 2018/06/29 11:00 | Dalma Galfi v Raluca Georgiana Serban | 6-3,1-6,7-5 |
| 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 Prague | 2018/07/26 13:10 | Elitsa Kostova v Lucrezia Stefanini | 6-2,6-4 |
| ITF Women Prague | 2018/07/25 09:30 | Elitsa Kostova v Katarina Zavatska | 6-2,4-6,6-4 |
| WTA Gstaad | 2018/07/18 10:30 | Marketa Vondrousova v Elitsa Kostova | 6-4,6-4 |
| WTA Gstaad | 2018/07/17 08:30 | Elitsa Kostova v Anna Kalinskaya | 6-4,0-6,6-2 |
| ITF Women Versmold | 2018/07/12 09:10 | Laura Siegemund v Elitsa Kostova | 6-2,6-4 |
| Wimbledon Women Qual | 2018/06/26 10:00 | Jamie Loeb v Elitsa Kostova | 1-6,7-5,6-1 |