| ITF W25 Vienna | 09/02 11:35 | 27 | [359] Gergana Topalova v Daniela Vismane [269] | 6-7,6-2,5-7 | |
| ITF W25 Vienna | 09/01 11:00 | 26 | Gergana Topalova v Haruka Kaji | 6-4,6-1 | |
| ITF W25 Vienna | 08/30 12:00 | 25 | Gergana Topalova v Lola Radivojevic | 6-2,3-6,6-2 | |
| ITF W25 Parnu | 08/14 08:00 | 29 | [447] Gergana Topalova v Weronika Falkowska [334] | 5-7,2-6 | |
| ITF W25 Parnu | 08/13 10:50 | 28 | [414] Elena Malygina v Gergana Topalova [447] | 1-6,4-6 | |
| ITF W25 Parnu | 08/12 11:00 | 27 | [447] Gergana Topalova v Martina Colmegna [478] | 6-3,6-2 | |
| ITF W25 Parnu | 08/11 07:55 | 26 | [398] Valeriya Strakhova v Gergana Topalova [447] | 6-2,1-6,2-6 | |
| ITF W25 Parnu | 08/10 07:15 | 25 | Gergana Topalova v Klaudija Bubelyte | 7-6,3-6,6-4 | |
| ITF W25 Agadir | 08/07 13:00 | 29 | [375] Angelica Moratelli v Gergana Topalova [447] | 6-2,2-6,3-6 | |
| ITF W25 Agadir | 08/06 09:30 | 28 | Lexie Stevens v Gergana Topalova | 1-6,3-6 | |
| ITF W25 Agadir | 08/05 10:00 | 27 | [447] Gergana Topalova v Aurora Zantedeschi [327] | 6-3,7-5 | |
| ITF W25 Agadir | 08/04 09:55 | 26 | [472] Martina Colmegna v Gergana Topalova [447] | 2-6,7-5,2-6 | |
| ITF W25 Agadir | 08/03 09:00 | 25 | Fernanda Rain Contreras v Gergana Topalova | 2-6,0-6 | |
| ITF W25 Perugia | 07/20 12:30 | 25 | [499] Gergana Topalova v Jazmin Ortenzi [423] | Retired | |
| ITF W25 Perugia | 07/19 08:55 | 44 | Gergana Topalova v Federica Arcidiacono | 6-1,3-6,10-5 | |
| ITF W25 Perugia | 07/18 12:00 | 44 | Gergana Topalova v Alessandra Mazzola | 6-1,6-2 | |
| ITF W25 Perugia | 07/17 09:00 | 44 | Gergana Topalova v Giorgia Pinto | 6-4,2-6,10-4 | |
| ITF W25 Palma del Rio | 07/02 18:30 | 28 | [446] Gergana Topalova v Marina B Ribera [263] | 3-6,2-6 | |
| ITF W25 Palma del Rio | 07/01 18:00 | 27 | [130] Daria Snigur v Gergana Topalova [446] | Retired | |
| ITF W25 Palma del Rio | 06/30 19:20 | 26 | Gergana Topalova v Ariana Geerlings | 7-6,6-7,6-3 | |
| ITF W25 Palma del Rio | 06/28 16:25 | 25 | Gergana Topalova v Beatris Spasova | 6-3,6-0 | |
| ITF W25 Santo Domingo | 06/17 13:55 | 27 | Gergana Topalova v Pei-Chi Lee | 0-6,4-6 | |
| ITF W25 Santo Domingo | 06/16 13:30 | 26 | [494] Hiroko Kuwata v Gergana Topalova [398] | 3-6,1-6 | |
| ITF W25 Santo Domingo | 06/15 17:00 | 25 | Sharmada Balu v Gergana Topalova | 2-6,1-6 | |
| ITF W25 Santo Domingo | 06/09 16:15 | 26 | [496] Hiroko Kuwata v Gergana Topalova [400] | 7-5,6-2 | |
| ITF W25 Santo Domingo | 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 |
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.