Stadium: Court 5 Round: 25
| ITF Women Toronto | 2018/10/31 14:00 | Elitsa Kostova v Kimberley Zimmermann | 2-6,4-6 |
| ITF Women Toronto | 2018/10/30 15:45 | Elitsa Kostova v Maja Chwalinska | 7-5,4-6,6-3 |
| ITF Women Saguenay | 2018/10/23 14:00 | Elitsa Kostova v Jada Bui | 4-6,3-6 |
| WTA - Luxemburg | 2018/10/14 11:50 | Elitsa Kostova v Arantxa Rus | 2-6,3-6 |
| WTA - Luxemburg | 2018/10/13 19:35 | Indy De Vroome v Elitsa Kostova | 3-6,2-6 |
| ITF Women Santa Margherita | 2018/10/02 13:50 | Reka-Luca Jani v Elitsa Kostova | 7-5,4-6,6-1 |
| ITF Women Santa Margherita | 2018/09/28 12:00 | Elitsa Kostova v Ludmilla Samsonova | 3-6,4-6 |
| ITF Women Santa Margherita | 2018/09/27 12:00 | Elitsa Kostova v Irene Burillo Escorihuela | 6-0,5-7,6-2 |
| ITF Women Tyler | 2018/10/31 20:25 | Fanny Stollar v Nadia Podoroska | 4-6,6-4,3-6 |
| WTA - Moskou | 2018/10/13 07:00 | Ons Jabeur v Fanny Stollar | 1-6,6-4,6-3 |
| WTA - Hongkong | 2018/10/08 07:00 | Dayana Yastremska v Fanny Stollar | 6-4,6-4 |
| WTA - Hongkong | 2018/10/07 03:25 | Fanny Stollar v Laura Siegemund | 6-0,6-3 |
| WTA - Hongkong | 2018/10/06 05:40 | Fanny Stollar v Kwan Yau Ng | 6-0,6-2 |
| WTA Tashkent | 2018/09/27 10:20 | Margarita Betova v Fanny Stollar | 3-6,6-2,6-1 |
| WTA Tashkent | 2018/09/26 07:20 | Fanny Stollar v Vera Zvonareva | 7-6,6-4 |
| WTA Tashkent | 2018/09/24 08:15 | Fanny Stollar v Kurumi Nara | 3-6,6-3,6-4 |