# Nadiia Kolb

Nadiia Leonidivna Kolb (Ukrainian: Надія Леонідівна Колб; born 19 January 1993) is a Ukrainian tennis player.
She has a career-high WTA singles ranking of No. 584, achieved on 12 August 2024. Her best doubles ranking of world No. 173, she achieved on 9 September 2024.
Nadiia was born in the city of Yevpatoriya. Her younger sister Maryna, who is also a professional tennis player, is her regular doubles partner.
Nadiia made her WTA Tour main-draw debut at the 2024 Hong Kong Tennis Open, partnering with younger sister Maryna Kolb in doubles. They defeated Japanese duo Aoi Ito and Kyōka Okamura in the first round.In the quarter-finals, they were defeated by Norwegian Ulrikke Eikeri and Japanese Makoto Ninomiya.

## ITF Circuit finals
### Singles: 2 (0 titles, 2 runner-ups)

* Legend
* W15 tournaments
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Oct 2022 | ITF Baza, Spain | W15 | Hard | Lucía Peyre | 3–6, 3–6 |
| Loss | 0–2 | Aug 2024 | ITF Savitaipale, Finland | W15 | Clay | Zuzanna Pawlikowska | 7–5, 2–6, 1–6 |

### Doubles: 36 (10 titles, 26 runner-up)

* Legend
* W80 tournaments
* W60/75 tournaments
* W40/50 tournaments
* W25/35 tournaments
* W10/15 tournaments
| Result | No. | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Jul 2013 | ITF Istanbul, Turkey | W10 | Hard | Maryna Kolb | Polina Leykina Lidziya Marozava | 6–7$^{(2)}$, 5–7 |
| Loss | 0–2 | Nov 2013 | ITF Heraklion, Greece | W10 | Carpet | Maryna Kolb | Csilla Borsányi Ilka Csöregi | 6–4, 3–6, [9–11] |
| Loss | 0–3 | Jun 2014 | ITF Galați, Romania | W10 | Clay | Maryna Kolb | Camelia Hristea Patricia Maria Țig | 3–6, 1–6 |
| Loss | 0–4 | Aug 2014 | ITF Ostrava, Czech Republic | W10 | Clay | Maryna Kolb | Lenka Kunčíková Karolína Stuchlá | 6–4, 2–6, [7–10] |
| Loss | 0–5 | Oct 2014 | ITF Oslo, Norway | W10 | Hard (i) | Maryna Kolb | Alexa Guarachi Nina Stojanović | 4–6, 6–7$^{(7)}$ |
| Loss | 0–6 | Nov 2014 | ITF Oslo, Norway | W10 | Hard (i) | Maryna Kolb | Alexa Guarachi Daria Lodikova | 3–6, 6–2, [6–10] |
| Loss | 0–7 | Jun 2015 | ITF Niš, Serbia | W10 | Clay | Maryna Kolb | Ailen Crespo Azconzábal Ana Victoria Gobbi Monllau | 1–6, 2–6 |
| Loss | 0–8 | Jul 2015 | ITF Prokuplje, Serbia | W10 | Clay | Maryna Kolb | Estrella Cabeza Candela Alexandra Nancarrow | 6–2, 4–6, [6–10] |
| Loss | 0–9 | Jul 2015 | ITF Iași, Romania | W10 | Clay | Maryna Kolb | Ioana Loredana Roșca Oana Georgeta Simion | 3–6, 5–7 |
| Loss | 0–10 | Aug 2015 | ITF Plovdiv, Bulgaria | W10 | Clay | Maryna Kolb | Alexandra Nancarrow Yana Sizikova | 3–6, 3–6 |
| Win | 1–10 | Sep 2015 | ITF Prague, Czech Republic | W10 | Clay | Maryna Kolb | Tina Tehrani Karolina Wlodarczak | 6–4, 6–2 |
| Loss | 1–11 | Apr 2016 | ITF Győr, Hungary | W10 | Clay | Maryna Kolb | Daiana Negreanu Rebeka Stolmár | 6–7$^{(4)}$, 0–6 |
| Loss | 1–12 | Jun 2016 | ITF Szczawno-Zdrój, Poland | W10 | Clay | Maryna Kolb | Olga Brózda Anastasiya Shoshyna | 2–6, 6–7$^{(4)}$ |
| Win | 2–12 | Sep 2016 | ITF Chișinău, Moldova | W10 | Clay | Maryna Kolb | Veronika Kapshay Angelina Shakhraychuk | 5–7, 7–5, [10–6] |
| Loss | 2–13 | Sep 2017 | ITF Prague, Czech Republic | W15 | Clay | Natalie Pröse | Anastasia Dețiuc Johana Marková | 2–6, 2–6 |
| Win | 3–13 | Sep 2017 | ITF Kyiv, Ukraine | W15 | Clay | Maryna Kolb | Martina Colmegna Michele Alexandra Zmău | 6–2, 4–6, [13–11] |
| Loss | 3–14 | Nov 2017 | ITF Stockholm, Sweden | W15 | Hard (i) | Maryna Kolb | Malene Helgø Fanny Östlund | w/o |
| Win | 4–14 | Nov 2017 | ITF Minsk, Belarus | W15 | Hard (i) | Maryna Kolb | Manon Arcangioli Alena Tarasova | 5–7, 6–4, [10–7] |
| Loss | 4–15 | Dec 2017 | ITF Milovice, Czech Republic | W15 | Hard (i) | Maryna Kolb | Jana Jablonovská Lena Papadakis | 1–6, 3–6 |
| Win | 5–15 | Sep 2018 | ITF Chornomorsk, Ukraine | W15 | Clay | Maryna Kolb | Alexandra Perper Anastasia Vdovenco | 6–4, 6–4 |
| Win | 6–15 | Aug 2022 | ITF Bydgoszcz, Poland | W15 | Clay | Maryna Kolb | Valeriia Olianovskaia Stefania Rogozińska Dzik | 6–4, 1–6, [10–7] |
| Win | 7–15 | Sep 2022 | ITF Ceuta, Spain | W15 | Hard | Maryna Kolb | Lucía Llinares Domingo Olga Parres Azcoitia | 6–4, 6–2 |
| Loss | 7–16 | Oct 2022 | ITF Baza, Spain | W15 | Hard | Maryna Kolb | Lucía Llinares Domingo Olga Parres Azcoitia | 5–7, 6–2, [11–13] |
| Loss | 7–17 | Oct 2022 | ITF Seville, Spain | W25 | Clay | Maryna Kolb | İpek Öz Nika Radišić | 5–7, 6–7$^{(3)}$ |
| Win | 8–17 | Sep 2022 | ITF Gdańsk, Poland | W15 | Clay | Maryna Kolb | Gina Feistel Marcelina Podlińska | 6–0, 6–1 |
| Loss | 8–18 | Sep 2023 | ITF Frýdek-Místek, Czech Republic | W25 | Clay | Maryna Kolb | Mana Kawamura Linda Klimovičová | 1–6, 3–6 |
| Loss | 8–19 | Sep 2023 | ITF Féminin Le Neubourg, France | W80 | Hard | Maryna Kolb | Fiona Ferro Alina Korneeva | 6–7$^{(7)}$, 5–7 |
| Loss | 8–20 | Sep 2023 | ITF Santarém, Portugal | W25 | Hard | Maryna Kolb | Dalayna Hewitt Madison Sieg | 6–4, 2–6, [10–12] |
| Win | 9–20 | Oct 2023 | ITF Seville, Spain | W25 | Clay | Maryna Kolb | Cristina Dinu Sapfo Sakellaridi | 6–1, 6–1 |
| Win | 10–20 | Oct 2023 | ITF Faro, Portugal | W25 | Hard | Maryna Kolb | Diāna Marcinkēviča Sapfo Sakellaridi | 6–4, 6–3 |
| Loss | 10–21 | Oct 2023 | ITF Castellón, Spain | W15 | Clay | Maryna Kolb | Marie Mettraux Chantal Sauvant | 6–3, 1–6, [5–10] |
| Loss | 10–22 | Nov 2023 | ITF Nules, Spain | W15 | Clay | Maryna Kolb | Yvonne Cavallé Reimers Ángela Fita Boluda | 1–6, 2–6 |
| Loss | 10–23 | Aug 2024 | ITF Bytom, Poland | W50 | Clay | Maryna Kolb | Nicole Fossa Huergo Zhibek Kulambayeva | 6–7$^{(6)}$, 2–6 |
| Loss | 10–24 | Aug 2024 | ITF Bydgoszcz, Poland | W35 | Clay | Maryna Kolb | Sada Nahimana Rinon Okuwaki | 4–6, 1–6 |
| Loss | 10–25 | Aug 2024 | ITF Brașov, Romania | W35 | Clay | Maryna Kolb | Ksenia Laskutova Nina Vargová | 3–6, 4–6 |
| Loss | 10–26 | Sep 2024 | Ladies Open Vienna, Austria | W75 | Clay | Maryna Kolb | Emily Appleton Estelle Cascino | 4–6, 6–7$^{(1)}$ |