| ITF - W25 Istanbul | 10/25 15:30 | 25 | [310] Gergana Topalova v Polina Kudermetova [242] | 7-5,1-6,0-6 | |
| ITF - W25 Sozopol | 10/18 09:55 | 25 | [359] Adithya Karunaratne v Gergana Topalova [310] | 6-2,6-4 | |
| ITF - W25 Sozopol | 10/12 09:30 | 25 | [396] Elena Malygina v Gergana Topalova [332] | 7-6,4-6,6-3 | |
| ITF - W25 Sozopol | 10/08 07:00 | 28 | [364] Maria Bondarenko v Gergana Topalova [332] | 7-6,7-6 | |
| 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 Vrnjačka Banja | 09/20 12:40 | 25 | [341] Gergana Topalova v Sinja Kraus [201] | 4-6,6-3,2-6 | |
| ITF - W60 Vrnjačka Banja | 09/19 11:25 | 54 | [341] Gergana Topalova v Tamara Curovic [324] | 6-4,6-0 | |
| ITF - W60 Vrnjačka Banja | 09/18 14:15 | 54 | Gergana Topalova v Marija Djurasic | 6-0,6-1 | |
| ITF - W25 Káhira | 09/09 08:00 | 27 | Lola Radivojevic v Gergana Topalova | 7-6,6-3 | |
| ITF - W25 Káhira | 09/08 08:00 | 26 | [485] Jacqueline Cabaj Awad v Gergana Topalova [359] | 2-6,2-6 | |
| ITF - W25 Káhira | 09/07 13:40 | 25 | Merna Refaat v Gergana Topalova | 4-6,5-7 | |
| ITF - W25 Viedeň | 09/02 11:35 | 27 | [359] Gergana Topalova v Daniela Vismane [269] | 6-7,6-2,5-7 | |
| ITF - W25 Viedeň | 09/01 11:00 | 26 | Gergana Topalova v Haruka Kaji | 6-4,6-1 | |
| ITF - W25 Viedeň | 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 |
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.