| ITF - W25 Palma del Río | 07/02 18:30 | 28 | [446] Gergana Topalova v Marina B Ribera [263] | 3-6,2-6 | |
| ITF - W25 Palma del Río | 07/01 18:00 | 27 | [130] Daria Snigur v Gergana Topalova [446] | Retired | |
| ITF - W25 Palma del Río | 06/30 19:20 | 26 | Gergana Topalova v Ariana Geerlings | 7-6,6-7,6-3 | |
| ITF - W25 Palma del Río | 06/28 16:25 | 25 | Gergana Topalova v Beatris Spasova | 6-3,6-0 | |
| ITF - W25 São Domingos | 06/17 13:55 | 27 | Gergana Topalova v Pei-Chi Lee | 0-6,4-6 | |
| ITF - W25 São Domingos | 06/16 13:30 | 26 | [494] Hiroko Kuwata v Gergana Topalova [398] | 3-6,1-6 | |
| ITF - W25 São Domingos | 06/15 17:00 | 25 | Sharmada Balu v Gergana Topalova | 2-6,1-6 | |
| ITF - W25 São Domingos | 06/09 16:15 | 26 | [496] Hiroko Kuwata v Gergana Topalova [400] | 7-5,6-2 | |
| ITF - W25 São Domingos | 06/08 16:35 | 25 | Olivia Lincer v Gergana Topalova | 6-4,3-6,6-7 | |
| ITF - W25 Warmbad-Villach | 05/19 07:55 | 26 | [329] Lea Boskovic v Gergana Topalova [407] | 6-1,6-3 | |
| ITF - W25 Warmbad-Villach | 05/18 07:55 | 25 | [407] Gergana Topalova v Aurora Zantedeschi [352] | 6-0,6-2 | |
| ITF - W15 Cairo | 05/07 10:30 | - | Melanie Klaffner v Gergana Topalova | View | |
| ITF - W15 Cairo | 05/07 10:30 | 28 | Melanie Klaffner v Gergana Topalova | Walkover | |
| ITF - W15 Cairo | 05/06 11:40 | 27 | Denislava Glushkova v Gergana Topalova | Retired | |
| ITF - W15 Cairo | 05/05 08:00 | 26 | Gebriela Mihaylova v Gergana Topalova | 1-6,2-6 | |
| ITF - W15 Cairo | 05/04 08:00 | 25 | Leena Metwally v Gergana Topalova | 2-6,1-6 | |
| ITF - W25 Cairo | 04/27 15:20 | 25 | [414] Gergana Topalova v Selena Janicijevic [373] | 2-6,6-7 | |
| ITF - W15 Antália | 04/20 09:15 | 25 | [277] Anna Kubareva v Gergana Topalova [414] | 6-4,6-2 | |
| ITF - W15 Antália | 04/19 07:00 | 62 | Gergana Topalova v Mia Kupres | 7-5,2-6,10-5 | |
| ITF - W15 Antália | 04/18 07:00 | 62 | Gergana Topalova v Anastasia Mozgaleva | 6-1,6-0 | |
| ITF - W15 Antália | 04/17 07:00 | 62 | Gergana Topalova v Helena Buchwald | 6-3,6-3 | |
| ITF - W15 Antália | 04/13 10:50 | 25 | Vicky Van De Peer v Gergana Topalova | 7-6,7-5 | |
| ITF - W15 Antália | 04/05 08:20 | 25 | Julia Avdeeva v Gergana Topalova | 6-2,6-3 | |
| ITF - W25 Antalya | 03/13 07:00 | 62 | Gergana Topalova v Rina Saigo | 6-7,6-2,3-10 | |
| ITF - W25 Antalya | 03/06 08:30 | 62 | Sapfo Sakellaridi v Gergana Topalova | 7-5,6-2 | |
| ITF - W15 Antália | 03/04 06:20 | 26 | [429] Gergana Topalova v Rosa Vicens Mas [484] | 3-6,4-6 | |
| ITF - W15 Antália | 03/01 10:05 | 25 | Gergana Topalova v Melis Sezer | 6-1,6-0 | |
| ITF - W15 Monastir | 11/16 09:00 | 25 | Gergana Topalova v Anja Wildgruber | 2-6,6-7 | |
| ITF - W25 Kiryat Motzkin | 10/25 10:20 | 25 | [449] Gergana Topalova v Nika Radisic [192] | 4-6,2-6 | |
| ITF - W25 Netanya | 10/21 07:00 | 26 | [317] Carole Monnet v Gergana Topalova [447] | 7-5,6-3 |
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.