| ITF - W25 Sozopol | 10/07 10:05 | 27 | [332] Gergana Topalova v Lucie Nguyen Tan [385] | 6-0,6-0 | |
| ITF - W25 Sozopol | 10/06 07:00 | 26 | [371] Adithya Karunaratne v Gergana Topalova [332] | 5-7,6-3,6-7 | |
| ITF - W25 Sozopol | 10/05 09:15 | 25 | [332] Gergana Topalova v Ilona-Georgiana Ghioroaie [359] | 6-1,6-2 | |
| ITF - W60 Vrnjacka Banja | 09/20 12:40 | 25 | [341] Gergana Topalova v Sinja Kraus [201] | 4-6,6-3,2-6 | |
| ITF - W60 Vrnjacka Banja | 09/19 11:25 | 54 | [341] Gergana Topalova v Tamara Curovic [324] | 6-4,6-0 | |
| ITF - W60 Vrnjacka Banja | 09/18 14:15 | 54 | Gergana Topalova v Marija Djurasic | 6-0,6-1 | |
| ITF W25 Cairo | 09/09 08:00 | 27 | Lola Radivojevic v Gergana Topalova | 7-6,6-3 | |
| ITF W25 Cairo | 09/08 08:00 | 26 | [485] Jacqueline Cabaj Awad v Gergana Topalova [359] | 2-6,2-6 | |
| ITF W25 Cairo | 09/07 13:40 | 25 | Merna Refaat v Gergana Topalova | 4-6,5-7 | |
| ITF W25 - Wenen | 09/02 11:35 | 27 | [359] Gergana Topalova v Daniela Vismane [269] | 6-7,6-2,5-7 | |
| ITF W25 - Wenen | 09/01 11:00 | 26 | Gergana Topalova v Haruka Kaji | 6-4,6-1 | |
| ITF W25 - Wenen | 08/30 12:00 | 25 | Gergana Topalova v Lola Radivojevic | 6-2,3-6,6-2 | |
| ITF W25 - Pärnu | 08/14 08:00 | 29 | [447] Gergana Topalova v Weronika Falkowska [334] | 5-7,2-6 | |
| ITF W25 - Pärnu | 08/13 10:50 | 28 | [414] Elena Malygina v Gergana Topalova [447] | 1-6,4-6 | |
| ITF W25 - Pärnu | 08/12 11:00 | 27 | [447] Gergana Topalova v Martina Colmegna [478] | 6-3,6-2 | |
| ITF W25 - Pärnu | 08/11 07:55 | 26 | [398] Valeriya Strakhova v Gergana Topalova [447] | 6-2,1-6,2-6 | |
| ITF W25 - Pärnu | 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 |
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.