| ITF - W25 Santa Margherita | 04/19 08:00 | 25 | Gergana Topalova v Anouk Koevermans | 6-4,5-7,6-0 | |
| Billie Jean King Cup | 04/14 08:10 | 2 | [308] Gergana Topalova v Clara Tauson [130] | 3-6,1-6 | |
| Billie Jean King Cup | 04/13 09:30 | 2 | [308] Gergana Topalova v Malene Helgo [335] | 0-6,2-6 | |
| Billie Jean King Cup | 04/12 09:00 | 2 | Caijsa W Hennemann v Gergana Topalova | 6-1,5-7,3-6 | |
| Billie Jean King Cup | 04/11 10:05 | 2 | Tara Wurth v Gergana Topalova | 4-6,6-2,3-6 | |
| Billie Jean King Cup | 04/11 10:00 | - | [146] Tara Wurth v Gergana Topalova [308] | 4-6,6-2,3-6 | |
| ITF - W40 Split | 04/04 07:50 | 25 | [213] Petra Marcinko v Gergana Topalova [306] | 6-1,6-3 | |
| ITF - W40 Split | 04/03 07:55 | 54 | [323] Gergana Topalova v Lucia Cortez Llorca [460] | 6-7,6-3,6-4 | |
| ITF - W25 Palmanova | 03/20 10:30 | 62 | Gergana Topalova v Oana Gavrila | 3-6,3-6 | |
| ITF - W25 Palmanova | 03/18 10:00 | 62 | Gergana Topalova v Matilde Jorge | 6-4,6-0 | |
| ITF - W25 Palmanova | 03/18 09:25 | 28 | [317] Gergana Topalova v Rosa Vicens Mas [214] | 3-6,2-6 | |
| ITF - W25 Palmanova | 03/17 09:30 | 27 | [178] Tara Wurth v Gergana Topalova [317] | 4-6,3-6 | |
| ITF - W25 Palmanova | 03/16 10:15 | 26 | [317] Gergana Topalova v Sada Nahimana [267] | 6-4,6-2 | |
| ITF - W25 Palmanova | 03/15 13:50 | 25 | Gergana Topalova v Anastasiya K Soboleva | 7-6,6-7,6-1 | |
| ITF - W60 Trnava | 03/07 08:55 | 54 | [352] Tereza Smitkova v Gergana Topalova [317] | 6-7,6-3,6-4 | |
| ITF - W60 Trnava | 03/06 16:40 | 54 | [469] Yana Morderger v Gergana Topalova [317] | 3-6,2-6 | |
| ITF - W25 Joué-lès-Tours | 03/01 14:05 | 25 | [286] Pemra Ozgen v Gergana Topalova [316] | 6-2,6-4 | |
| ITF - W40 Mâcon | 02/22 12:35 | 25 | [321] Gergana Topalova v Jessica Pieri [493] | 1-6,1-6 | |
| ITF - W40 Mâcon | 02/20 12:50 | 54 | [321] Gergana Topalova v Daniela Seguel [446] | 5-7,6-1,6-0 | |
| ITF - W40 Mâcon | 02/19 12:00 | 54 | Gergana Topalova v Marine Szostak | 3-6,6-0,6-2 | |
| ITF - W25 Antalya | 02/02 08:40 | 26 | Gergana Topalova v Alba Rey Garcia | 6-7,5-7 | |
| ITF - W25 Antalya | 02/01 06:55 | 25 | Gergana Topalova v Polina Leykina | 6-1,6-2 | |
| WTA - Hobart | 01/07 00:00 | 14 | [324] Gergana Topalova v Diane Parry [111] | 0-6,3-6 | |
| United Cup - Feminino | 01/01 02:00 | - | [29] Elise Mertens v Gergana Topalova [323] | 6-4,3-6,6-0 | |
| ITF - W100 Dubai | 12/05 06:00 | 54 | [326] Gergana Topalova v Maria Timofeeva [331] | 3-6,3-6 | |
| ITF - W100 Dubai | 12/04 06:00 | 54 | Gergana Topalova v Humera Baharmus | 6-3,6-3 | |
| ITF - W25 Heraklion | 11/22 07:00 | 25 | [321] Gergana Topalova v Martina Colmegna [417] | Retired | |
| ITF - W25 Heraklion | 11/16 07:00 | 25 | [330] Dea Herdzelas v Gergana Topalova [315] | 6-4,3-6,6-2 | |
| ITF - W25 Jerusalém | 11/03 08:00 | 26 | [374] Anna Brogan v Gergana Topalova [309] | 6-7,6-1,6-3 | |
| ITF - W25 Jerusalém | 11/02 13:20 | 25 | Mao Mushika v Gergana Topalova | 3-6,5-7 |
Gergana Topalova (Bulgarian: Гергана Топалова; born 22 February 2000) is a Bulgarian tennis player. She has career-high WTA rankings of No. 210 in singles and No. 388 in doubles. Topalova has won six singles titles and four doubles titles on the ITF Circuit.
On the ITF Junior Circuit, she has a career-high combined ranking of 31, achieved on 22 January 2018.
In 2019, Topalova made her Fed Cup debut for Bulgaria.
On 23 November 2022, she was confirmed as a participant at the 2023 United Cup as part of the Bulgarian team. On New Year’s Eve 2022, she made her debut in mixed doubles match alongside Adrian Andreev which they lost to the top-seeded team of Maria Sakkari and Stefanos Tsitsipas. The following day, she made her WTA main draw debut and lost her first WTA singles match to Elise Mertens in three sets.
Topalova participated in the qualifying draw of the 2023 Hobart International. She entered as an alternate and lost in the first round of qualifying to Diane Parry.