# Nikola Bartůňková

Nikola Bartůňková (born 25 February 2006) is a Czech tennis player. Bartůňková has a career-high singles ranking by the Women's Tennis Association (WTA) of 226, achieved on 8 April 2024, and a career-high WTA doubles ranking of 320, achieved on 14 August 2023.

## Professional career

In April 2021, at the 2021 İstanbul Cup, Bartůňková attempted her WTA Tour debut. She defeated world No. 152, Leonie Küng, in the first round of qualifying, before losing to Anastasia Gasanova. She made her WTA Tour debut at the same tournament one year later, after having been handed a wildcard for the main draw, losing to Anastasia Potapova. On 16 October 2023, Bartůňková won her first tour-level match when she defeated Dayana Yastremska in the first round of the 2023 Transylvania Open, before losing in three hours to Ana Bogdan in the second round.
In November 2024, Bartůňková was issued with a six month competition ban backdated to April 2024 for an anti-doping rule violation after testing positive for unintentional use of trimetazidine (TMZ) at two events in early 2024. She had been provisionally suspended from May 2024 until the conclusion of the investigation. The International Tennis Integrity Agency (ITIA) accepted that the source of the TMZ was a contaminated supplement for which she bore "no significant fault or negligence" for having ingested.

## Performance timelines

Key :
| W | F | SF | QF | #R | RR | Q# | P# | DNQ | A | Z# | PO | G | S | B | NMS | NTI | P | NH |
Only main-draw results in WTA Tour, Grand Slam tournaments, Billie Jean King Cup and Olympic Games are included in win–loss records.

### Singles

Current after the 2023 Cluj Open.
| Tournament | 2022 | 2023 | SR | W–L | Win % |
| Grand Slam tournaments ||||||
| Australian Open | A | A | 0 / 0 | 0–0 | – |
| French Open | A | A | 0 / 0 | 0–0 | – |
| Wimbledon | A | A | 0 / 0 | 0–0 | – |
| US Open | A | A | 0 / 0 | 0–0 | – |
| Win–loss | 0–0 | 0–0 | 0 / 0 | 0–0 | – |
| Career statistics ||||||
| Tournaments | 1 | 1 | Career total: 2 | Career total: 2 | Career total: 2 |
| Overall win-loss | 0–1 | 1–1 | 0 / 2 | 1–2 | 33% |

### Doubles

Current after the 2023 Prague Open.
| Tournament | 2022 | 2023 | SR | W–L | Win % |
| Grand Slam tournaments ||||||
| Australian Open | A | A | 0 / 0 | 0–0 | – |
| French Open | A | A | 0 / 0 | 0–0 | – |
| Wimbledon | A | A | 0 / 0 | 0–0 | – |
| US Open | A | A | 0 / 0 | 0–0 | – |
| Win–loss | 0–0 | 0–0 | 0 / 0 | 0–0 | – |
| Career statistics ||||||
| Tournaments | 1 | 1 | Career total: 2 | Career total: 2 | Career total: 2 |
| Overall win-loss | 1–1 | 1–1 | 0 / 2 | 2–2 | 50% |

## ITF Circuit finals
### Singles: 8 (4 titles, 4 runner-ups)

* Legend
* W60/75 tournaments (0–1)
* W25/35 tournaments (4–3)
* Finals by surface
* Hard (1–3)
* Clay (3–1)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Nov 2021 | ITF Milovice, Czech Republic | W25 | Hard (i) | Linda Nosková | 3–6, 4–6 |
| Loss | 0–2 | May 2022 | Edge Istanbul, Turkey | W60 | Clay | Diana Shnaider | 5–7, 5–7 |
| Win | 1–2 | Apr 2023 | ITF Santa Margherita de Pula, Italy | W25 | Clay | Ylena In-Albon | 6–0, 7–5 |
| Win | 2–2 | Aug 2023 | ITF Erwitte, Germany | W25 | Clay | Daniela Vismane | 6–4, 6–1 |
| Win | 3–2 | Oct 2023 | ITF Santa Margherita di Pula, Italy | W25 | Clay | Katharina Hobgarski | 6–0, 1–0 ret. |
| Loss | 3–3 | Jan 2024 | ITF Sunderland, United Kingdom | W35 | Hard (i) | Valentina Ryser | 3–6, 6–7$^{(6)}$ |
| Win | 4–3 | Jan 2025 | ITF Sunderland, United Kingdom | W35 | Hard (i) | Amelia Rajecki | 6–4, 3–6, 6–3 |
| Loss | 4–4 | Jan 2025 | ITF Glasgow, United Kingdom | W35 | Hard (i) | Valentina Ryser | 5–7, 6–7$^{(6)}$ |

## Junior Circuit finals
### Grand Slam tournaments
#### Singles: 1 (runner-up)

| Result | Year | Tournament | Surface | Opponent | Score |
| Loss | 2023 | Wimbledon | Grass | Clervie Ngounoue | 2–6, 2–6 |

#### Doubles: 1 (runner-up)

| Result | Year | Tournament | Surface | Partner | Opponents | Score |
| Loss | 2022 | French Open | Clay | Céline Naef | Sára Bejlek Lucie Havlíčková | 3–6, 3–6 |

### ITF Junior Circuit
#### Singles: 13 (6 titles, 6 runner-ups, 1 not played)

* Legend
* J500 (1–1)
* J300 (1–1)
* J200 (1–1)
* J100 (0–1)
* J60 (3–1)
* J30 (1–0)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | Jul 2019 | ITF Prague, Czech Republic | Grade 4 | Clay | Radka Zelníčková | 6–3, 6–3 |
| Win | 2–0 | Oct 2019 | ITF Budapest, Hungary | Grade 4 | Clay | Luca Janosi | 6–3, 6–4 |
| Loss | 2–1 | Jan 2020 | ITF Bromma, Sweden | Grade 3 | Hard | Weronika Baszak | 4–6, 3–6 |
| Loss | 2–2 | Feb 2020 | ITF Karnten, Austria | Grade 3 | Carpet | Laura Isabel Putz | 2–6, 6–4, 3–6 |
| Loss | 2–3 | May 2021 | ITF Říčany, Czech Republic | Grade 1 | Clay | Julia Middendorf | 3–6, 6–4, 6–7$^{(4–7)}$ |
| Loss | 2–4 | Jul 2021 | ITF Milan, Italy | Grade A | Clay | Alexandra Eala | 3–6, 3–6 |
| Win | 3–4 | Sep 2021 | ITF Rakovník, Czech Republic | Grade 2 | Clay | Tereza Valentová | 2–6, 6–1, 6–0 |
| not played | – | Mar 2022 | ITF Benicarló, Spain | Grade 2 | Clay | Yoana Konstantinova | – |
| Win | 4–5 | Mar 2022 | ITF Villena, Spain | Grade 1 | Clay | Hanne Vandewinkel | 7–5, 6–1 |
| Win | 5–5 | Jan 2023 | ITF Bratislava, Slovakia | J200 | Hard | Kristýna Tomajková | 6–1, 6–1 |
| Win | 6–5 | Feb 2023 | ITF Oberhaching, Germany | J200 | Hard | Vlada Mincheva | 6–0, 6–3 |
| Loss | 6–6 | Jul 2023 | Wimbledon, United Kingdom | Grade A | Grass | Clervie Ngounoue | 2–6, 2–6 |

#### Doubles: 7 (5 titles, 2 runner-ups)

* Legend
* J500 (0–1)
* J300 (1–1)
* J200 (4–0)
* J100 (0–0)
* J60 (0–0)
* J30 (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | 1–0 | Sep 2020 | ITF Rakovník, Czech Republic | Grade 2 | Clay | Nelly Kněžková | Rozalia Gruszczynska Pola Wygonowska | 6–1, 6–2 |
| Win | 2–0 | May 2021 | ITF Říčany, Czech Republic | Grade 1 | Clay | Sára Bejlek | Alexis Blokhina Flavie Brugnone | 6–3, 6–4 |
| Win | 3–0 | May 2021 | ITF Hannover, Germany | Grade 2 | Clay | Céline Naef | Tea Lukic Laura Isabel Putz | 6–3, 6–3 |
| Win | 4–0 | Sep 2021 | ITF Rakovník, Czech Republic | Grade 2 | Clay | Elena Pridankina | Virginia Ferrara Giorgia Pedone | 6–3, 6–3 |
| Win | 5–0 | Mar 2022 | ITF Benicarló, Spain | Grade 2 | Clay | Daria Yesypchuk | Joelle Steur Marie Vogt | 7–5, 6–4 |
| Loss | 5–1 | Jun 2022 | French Open, France | Grade A | Clay | Céline Naef | Sára Bejlek Lucie Havlíčková | 3–6, 3–6 |
| Loss | 5–2 | Aug 2022 | ITF Prague, Czech Republic | Grade 1 | Clay | Karolina Kozakova | Amélie Šmejkalová Tereza Valentová | 4–6, 1–6 |