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Elitsa Kostova vs. Bermet Duvanaeva - H2H matches
| 22.10.12 | q 1 | Elitsa Kostova | Bermet Duvanaeva | 6-3, 6-1 | match details |  Poitiers | I. hard |
Elitsa Kostova form & Bermet Duvanaeva form
Elitsa Kostova - last matches
 Belgrade - Clay | ||||
| 27.07.21 1st round | vs. Arantxa Rus | 1-6, 0-6 |  | match details |
| W60 Biarritz - Clay | ||||
| 14.07.21 1st round | vs. Estelle Cascino | 4-6, 3-6 | | match details |
| W100 Contrexeville - Clay | ||||
| 08.07.21 2nd round | vs. Dalma Galfi | 6-72, 1-6 | | match details |
| 06.07.21 1st round | vs. Ulrikke Eikeri | 6-4, 3-6, 6-4 |  | match details |
 London - Grass | ||||
| 24.06.21 q 2 | vs. Xinyu Wang | 2-6, 1-6 | | match details |
| 23.06.21 q 1 | vs. Destanee Aiava | 6-4, 7-5 | | match details |
 W25 Madrid - Hard | ||||
| 11.06.21 1/4 | vs. Robin Anderson | 6-71, 2-6 | | match details |
| 10.06.21 2nd round | vs. Ivonne Cavalle-Reimers | 3-6, 6-2, 7-5 | | match details |
| 09.06.21 1st round | vs. Ganna Poznikhirenko | 6-3, 6-3 | | match details |
| Paris - Clay | ||||
| 26.05.21 q 2 | vs. Ekaterine Gorgodze | 6-75, 3-6 | | match details |
| 24.05.21 q 1 | vs. Salma Djoubri | 6-3, 6-2 | | match details |
 W60 Bellinzona - Clay | ||||
| 05.04.21 1st round | vs. Bianca Turati | 4-6, 4-6 | | match details |
 W25 Dubai - Hard | ||||
| 01.04.21 1/4 | vs. Yuliya Hatouka | 2-6, 5-7 | | match details |
| 31.03.21 2nd round | vs. Lesley Pattinama Kerkhove | 6-2, 7-5 | | match details |
| 30.03.21 1st round | vs. Sabina Sharipova | 6-4, 4-6, 6-1 | | match details |
| Dubai - Hard | ||||
| 10.01.21 q 1 | vs. Antonia Lottner | 4-6, 5-7 | | match details |
| W25 Las - Clay | ||||
| 18.11.20 1st round | vs. Jule Niemeier | 3-6, 0-6 | | match details |
| Paris - Clay | ||||
| 24.09.20 q 2 | vs. Monica Niculescu | 0-6, 7-61, 3-6 | | match details |
| 22.09.20 q 1 | vs. Gabriela Ce | 7-5, 3-6, 6-2 | | match details |
| W60+H Saint - Clay | ||||
| 09.09.20 1st round | vs. Magdalena Frech | 3-6, 3-6 | | match details |
 Prague - Clay | ||||
| 31.08.20 1st round | vs. Martina Di Giuseppe | 5-7, 6-3, 3-6 | | match details |
 All Lower - Clay | ||||
| 17.08.20 1st round | vs. Arina Gabriela Vasilescu | 6-3, 6-1 | | match details |
| 16.08.20 1st round | vs. Carole Monnet | 4-6, 3-6 | | match details |
| 15.08.20 1st round | vs. Diana Marcinkevica | 6-1, 6-75, 10-4 | | match details |
| 14.08.20 1st round | vs. Ivonne Cavalle-Reimers | 7-64, 6-4 | | match details |
| 13.08.20 1st round | vs. Nicoleta Dascalu | 4-6, 6-4, 10-5 | | match details |
 W25 Cairo - Hard | ||||
| 11.03.20 1st round | vs. Gergana Topalova | 6-2, 6-1 | | match details |
| Lyon - I. hard | ||||
| 29.02.20 q 1 | vs. Jia-Jing Lu | 1-6, 3-6 | | match details |
| W25 Sunderland - I. hard | ||||
| 26.02.20 1st round | vs. Emma Raducanu | 5-7, 1-6 | | match details |
| Dubai - Hard | ||||
| 15.02.20 q 1 | vs. Giulia Gatto-Monticone | 5-7, 1-6 | | match details |
Bermet Duvanaeva - last matches
 Shymkent - Clay | ||||
| 25.09.17 q 1 | vs. Olesya Nesterovich | 2-6, 2-6 | | match details |
| Shymkent - Clay | ||||
| 20.09.17 2nd round | vs. Albina Khabibulina | 0-6, 1-6 | | match details |
| 18.09.17 1st round | vs. Arina Solomatina | 5-7, 6-0, 6-3 | | match details |
| 18.09.17 q 1 | vs. Kristina Vergazova | 6-1, 6-3 | | match details |
| 18.09.17 qual. | vs. Alina Lazareva | 6-0, 6-1 | | match details |
| Almaty - Clay | ||||
| 28.08.17 q 1 | vs. Olesya Kim | 2-6, 6-4, 7-5 | | match details |
| 28.08.17 qual. | vs. Barbora Miklova | 1-6, 7-5, 0-6 | | match details |
| Shymkent - I. hard | ||||
| 25.02.13 1st round | vs. Shakhlo Saidova | 2-6, 6-4, 7-63 | | match details |
| 25.02.13 2nd round | vs. Yi Yang | 6-3, 0-6, 3-6 | | match details |
| Shymkent - I. hard | ||||
| 18.02.13 2nd round | vs. Asiya Dair | 5-7, 2-6 | | match details |
| 18.02.13 1st round | vs. Dinara Khalilova | 6-1, 6-0 | | match details |
| Nantes - I. hard | ||||
| 29.10.12 q 1 | vs. Natalia Orlova | 1-6, 0-3, - Bermet Duvanaeva - retired | | match details |
| Poitiers - I. hard | ||||
| 22.10.12 q 1 | vs. Elitsa Kostova | 3-6, 1-6 | | match details |
| Limoges - I. hard | ||||
| 15.10.12 q 1 | vs. Sviatlana Pirazhenka | 6-2, 5-7, 2-6 | | match details |
| Astana - Hard | ||||
| 23.07.12 q 1 | vs. Anna Kechko | 6-2, 6-3 | | match details |
| 23.07.12 q 2 | vs. Paula Kania | 2-6, 3-6 | | match details |
| Astana - Hard | ||||
| 16.07.12 qual. | vs. Yelena Nemchen | 6-3, 7-5 | | match details |
| 16.07.12 2nd round | vs. Veronika Kapshay | 6-75, 2-6 | | match details |
| 16.07.12 1st round | vs. Eugeniya Pashkova | 7-5, 6-1 | | match details |
 Istanbul - Hard | ||||
| 09.07.12 1st round | vs. Polina Leykina | 6-0, 5-7, 6-74 | | match details |
| Istanbul - Hard | ||||
| 02.07.12 2nd round | vs. Milena Zubkov | 6-4, 6-1 | | match details |
| 02.07.12 1/4 | vs. Stephanie Scimone | 6-3, 6-2 | | match details |
| 02.07.12 1/2 | vs. Sandra Roma | 4-6, 6-2, 4-6 | | match details |
| 02.07.12 1st round | vs. Dariya Berezhnaya | 6-1, 6-4 | | match details |
| Izmir - Hard | ||||
| 25.06.12 2nd round | vs. Marina Zhurba | 7-5, 7-61 | | match details |
| 25.06.12 1/4 | vs. Stephanie Scimone | 6-1, 1-6, 6-3 | | match details |
| 25.06.12 fin | vs. Yuliya Kalabina | 6-4, 2-6, 3-6 | | match details |
| 25.06.12 1/2 | vs. Teodora Mircic | 6-3, 1-6, 6-4 | | match details |
| 25.06.12 1st round | vs. Ella Leivo | 7-64, 4-6, 6-4 | | match details |
| Istanbul - Hard | ||||
| 18.06.12 1st round | vs. Julia Zakharova | 6-3, 6-1 | | match details |
