| ITF - W100 Wiesbaden | 04/28 09:30 | 54 | [319] Barbora Palicova v Gergana Topalova [248] | 6-1,3-6,6-4 | |
| ITF - W75 Koper | 04/17 16:40 | 25 | [242] Gergana Topalova v Justina Mikulskyte [227] | Retired | |
| Billie Jean King Cup | 04/13 11:20 | 2 | [253] Gergana Topalova v Francisca Jorge [190] | 4-6,4-6 | |
| Billie Jean King Cup | 04/12 09:45 | 1 | Gergana Topalova v Emily Sartz-Lunde | 3-6,6-3,6-2 | |
| Billie Jean King Cup | 04/08 10:00 | 1 | [435] Adrienn Nagy v Gergana Topalova [253] | 7-5,7-6 | |
| ITF - W35 Hammamet | 04/06 09:00 | 28 | [442] Sara Cakarevic v Gergana Topalova [253] | 2-6,6-1,6-4 | |
| ITF - W35 Hammamet | 04/05 09:00 | 27 | [434] Ekaterina Reyngold v Gergana Topalova [253] | 2-6,4-6 | |
| ITF - W35 Hammamet | 04/04 10:45 | 26 | Ariadna G P Canals v Gergana Topalova | 0-6,2-6 | |
| ITF - W35 Hammamet | 04/02 12:00 | 25 | Briana Szabo v Gergana Topalova | Retired | |
| ITF - W35 Alaminos-Larnaca | 03/21 11:05 | 26 | [245] Gergana Topalova v Cristina Dinu [227] | 1-6,3-6 | |
| ITF - W35 Alaminos-Larnaca | 03/19 14:25 | 25 | Gergana Topalova v Emma Fulvia Wiesenfeld | 6-4,6-4 | |
| ITF - W35 Alaminos-Larnaca | 03/12 09:45 | 25 | [242] Gergana Topalova v Irene B Escorihuela [264] | 3-6,0-6 | |
| ITF W35 - Antalya | 02/21 09:45 | 25 | [352] Ayla Aksu v Gergana Topalova [240] | 6-4,6-1 | |
| ITF W35 - Antalya | 02/15 12:45 | 25 | [321] Anastasiya K Soboleva v Gergana Topalova [245] | 6-3,6-1 | |
| ITF W35 - Antalya | 02/10 09:40 | 27 | [246] Gergana Topalova v Polona Hercog [235] | Retired | |
| ITF W35 - Antalya | 02/08 08:40 | 26 | Gergana Topalova v Paula Ormaechea | 6-3,6-1 | |
| ITF W35 - Antalya | 02/07 07:00 | 25 | [246] Gergana Topalova v Dimitra Pavlou [414] | 7-6,6-7,7-6 | |
| ITF - W50 Porto | 01/30 16:10 | 25 | [246] Gergana Topalova v Julie Struplova [290] | 2-6,3-6 | |
| ITF W50 - Bengaluru | 01/17 08:15 | 25 | [247] Gergana Topalova v Polina Kudermetova [186] | 2-6,3-6 | |
| ITF - W50 Nonthaburi | 01/10 03:00 | 25 | [247] Gergana Topalova v Maja Chwalinska [361] | 3-6,5-7 | |
| ITF - W100 Dubai | 12/04 11:35 | 25 | Gergana Topalova v Ekaterina Vl. Makarova | 0-6,6-7 | |
| ITF - W60 Trnava | 11/29 16:55 | 25 | [239] Gergana Topalova v Elena Milovanovic [496] | 5-7,1-6 | |
| ITF - W25 Lousada | 11/22 10:00 | 25 | [477] Naima Karamoko v Gergana Topalova [239] | Retired | |
| ITF - W40 Funchal | 11/15 13:55 | 25 | Gergana Topalova v Emilie Lindh | 6-1,2-6,3-6 | |
| ITF - W60 Nantes | 10/30 14:15 | 25 | [147] Polina Kudermetova v Gergana Topalova [240] | 6-2,2-6,7-5 | |
| ITF - W60 Glasgow | 10/25 12:30 | 25 | [309] Amarni Banks v Gergana Topalova [240] | 6-3,6-1 | |
| ITF - W40 Lissabon | 10/08 09:25 | 29 | [252] Gergana Topalova v Katarina Zavatska [194] | 3-6,6-2,5-7 | |
| ITF - W40 Lissabon | 10/07 09:00 | 28 | [226] Carlota Martinez Cirez v Gergana Topalova [252] | 6-4,5-7,4-6 | |
| ITF - W40 Lissabon | 10/06 11:25 | 27 | [252] Gergana Topalova v Guiomar M Z D Reales [423] | 6-2,6-1 | |
| ITF - W40 Lissabon | 10/05 15:35 | 26 | Gergana Topalova v Claudia Hoste Ferrer | 6-1,6-2 |
Gergana Topalova (Bulgarian: Гергана Топалова; born 22 February 2000) is a Bulgarian tennis player. She has career-high WTA rankings of No. 231 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.