Czech

tennis Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of two players each (doubles (tennis), doubles). Each player uses a tennis racket st ...

players

Barbora Krejčíková Barbora Krejčíková (; born 18 December 1995) is a Czech professional tennis player. She has been WTA rankings, ranked as high as world No. 2 in singles and List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles by the Wome ...

and

Kateřina Siniaková Kateřina Siniaková (; born 10 May 1996) is a Czech professional tennis player. She is the current List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles. She also has a best singles WTA rankings, ranking of No. 27 by the W ...

formed a successful doubles partnership from 2013 to 2023. They won seven

major Major most commonly refers to: * Major (rank), a military rank * Academic major, an academic discipline to which an undergraduate student formally commits * People named Major, including given names, surnames, nicknames * Major and minor in musi ...

tournaments and nine other

Women's Tennis Association The Women's Tennis Association (WTA) is the principal organizing body of women's professional tennis. The association governs the WTA Tour, which is the worldwide professional tennis tour for women, and was founded to create a better future fo ...

(WTA) titles. With wins at the

2020 Olympics The officially the and officially branded as were an international multi-sport event that was held from 23 July to 8 August 2021 in Tokyo, Japan, with some of the preliminary sporting events beginning on 21 July 2021. Tokyo ...

and the

2021 WTA Finals The 2021 WTA Finals, also known by its sponsored name Akron WTA Finals Guadalajara, was the WTA Finals, women's year-end championship tennis tournament run by the Women's Tennis Association (WTA) as part of the 2021 WTA Tour. It took place at the ...

, they are the only women's doubles team to complete the career Super Slam together. They finished three years ranked No. 1 in doubles.

History

2013–2017: Junior success and early professional years

In 2013, Krejčíková and Siniaková, both aged 17, won three of the year's four junior Grand Slam doubles tournaments. They were paired together when each of them "couldn't find a partner" for doubles at the

French Open The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...

, and went on to win the event without dropping a set. A month later, they repeated the feat at

Wimbledon Wimbledon most often refers to: * Wimbledon, London, a district of southwest London * Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships Wimbledon may also refer to: Places London * W ...

, and they completed their junior careers with the same result at the

US Open U.S. Open or US Open are open championship sporting tournaments that are hosted in the United States and in which anyone, especially amateur and professional, or American and non-American, may compete. The term may also be applied to non-sporting ev ...

. Including two other tournament wins, this stretched their team win–loss record at junior events to 24–0 (48–0 in sets). Siniaková and Krejčíková had peak junior

International Tennis Federation The International Tennis Federation (ITF) is the governing body of world tennis, wheelchair tennis, and beach tennis. It was founded in 1913 as the International Lawn Tennis Federation by twelve national tennis associations. there are 211 nat ...

(ITF) rankings of No. 2 and No. 3 respectively. Following their junior triumphs, the team played intermittently from 2014 to 2017. Siniaková was the first to establish herself on the

WTA Tour The WTA Tour (also known as the Hologic WTA Tour for sponsorship reasons) is a worldwide top-tier tennis tour for women and organized by the Women's Tennis Association. The second-tier tour is the WTA 125 series, and third-tier is the ITF Wome ...

, cracking the top 50 in singles in 2016, while Krejčíková initially struggled, not reaching the top 100 in singles until 2020. This gap in rankings sometimes made it difficult for them to enter the same tournaments, but they did manage to play at several events together in 2016. At the

, on the way to their first major women's doubles semifinal, they beat the team of

Martina Hingis Martina Hingis (, ; born 30 September 1980) is a Swiss former professional tennis player. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 209 weeks ( fifth-most of all time) and as the world No. ...

and

Sania Mirza Sania Mirza (; born 15 November 1986) is an Indian former professional tennis player. A former doubles world No. 1, she won six major titles – three in women's doubles and three in mixed doubles. From 2003 until her retirement from singles ...

that was attempting to finish a non-calendar-year Grand Slam. They additionally reached the quarterfinals of the

2018–2020: first Grand Slam titles, Fed Cup win, No. 1 ranking

After a break of more than a year, Krejčíková and Siniaková reunited in 2018. Early that year, they reached their first two WTA Tour doubles finals as a pair in

Shenzhen Shenzhen is a prefecture-level city in the province of Guangdong, China. A Special economic zones of China, special economic zone, it is located on the east bank of the Pearl River (China), Pearl River estuary on the central coast of Guangdong ...

and

Miami Miami is a East Coast of the United States, coastal city in the U.S. state of Florida and the county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida. It is the core of the Miami metropolitan area, which, with a populat ...

. In the summer, they reached and won their first Grand Slam finals together: At the

, they beat the Japanese pair

Eri Hozumi is a Japanese tennis player. On 10 November 2014, she reached a career-high singles ranking of world No. 144. On 27 May 2019, she peaked at No. 28 in the WTA doubles rankings. Partnering with Makoto Ninomiya, she reached the final of the 2018 ...

Makoto Ninomiya is a Japanese professional tennis player. She achieved a career-high doubles ranking of world No. 20 on 22 October 2018, and peaked at No. 280 in singles on 22 February 2016. Partnered with Eri Hozumi, she reached the final of the 2018 French ...

in a quick straight-set final, and in the

final, they outlasted

Nicole Melichar Nicole Melichar-Martinez (née Melichar; , ; born July 29, 1993) is an American professional tennis player who specializes in doubles. On 3 July 2023, she peaked at No. 6 in the WTA doubles rankings. Melichar has won fifteen doubles titles on the ...

Květa Peschke Květoslava Peschke (, née Hrdličková; born 9 July 1975) is a Czech former professional tennis player who was ranked world No. 1 in doubles. She reached a career-high singles ranking of No. 26 in November 2005, winning one WTA singles titl ...

. These wins made Krejčíková/Siniaková the first doubles team to complete the

Channel Slam The Grand Slam in tennis is the achievement of winning all four major championships in one discipline in a calendar year. In doubles, a Grand Slam may be achieved as a team or as an individual with different partners. Winning all four major cha ...

since

Kim Clijsters Kim Antonie Lode Clijsters (; born 8 June 1983) is a Belgian former professional tennis player. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 20 weeks, and as the world No. 1 in women's double ...

Ai Sugiyama is a Japanese former tennis player. She reached the world No. 1 ranking in women's doubles on the WTA Tour and had a career-high singles ranking of world No. 8, achieved on February 9, 2004. In her career, she won six singles and 38 doubles ...

in 2003. The pair nearly replicated their junior triple as the top-seeded team at the

, but lost in the semifinals to eventual champions

Ashleigh Barty Ashleigh Jacinta Barty (born 24 April 1996) is an Australian former professional tennis player and cricketer. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Assoc ...

/ CoCo Vandeweghe. Krejčíková and Siniaková were the first team in 2019 to qualify for the season-ending

WTA Finals The WTA Finals (formerly known as the WTA Tour Championships or WTA Championships) is the season-ending championship of the WTA Tour. It is the most significant tennis event in the women's annual calendar after the four majors, as it features t ...

, where on their debut in October they finished runners-up to

Tímea Babos Tímea Babos (; born 10 May 1993) is a Hungarian professional tennis player who is a former List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles. She has won three WTA Tour titles in singles and 27 in doubles. Babos is a f ...

and

Kristina Mladenovic Kristina "Kiki" Mladenovic (born 14 May 1993) is a French professional tennis player and a former List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles. Her best singles ranking is world No. 10. She is a nine-time Grand Slam ...

. Shortly before season's end, the team jointly attained the No. 1 ranking for the first time on 22 October 2018. Additionally, they were named the WTA Doubles Team of the Year. The next year, Krejčíková and Siniaková qualified for the WTA Finals for a second straight year but did not win any major titles in 2019. They won two tournaments this year, the Rogers Cup in Canada and the

Linz Open The Linz Open, currently "Upper Austria Ladies Linz" and formerly sponsored by Generali Gruppe, is a women's tennis tournament held in Linz, Austria. It is played on indoor hardcourts. The inaugural event took place in 1987 in Wels, Austria and w ...

in Austria.

Elise Mertens Elise Mertens (; born 17 November 1995) is a Belgian professional tennis player. She became List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles on 10 May 2021, the third Belgian to hold the top ranking in either singles or ...

and

Aryna Sabalenka Aryna Siarhiejeŭna Sabalenka (born 5 May 1998) is a Belarusian professional tennis player. She is currently ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA), and is a former world No. 1 in women's doubles. ...

beat them in the Indian Wells final. At the majors, the Czechs lost in the quarterfinals of the

Australian Open The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...

to eventual champions

Samantha Stosur Samantha Jane Stosur (born 30 March 1984) is an Australian former professional tennis player. She is a former List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles, a ranking which she first achieved on 6 February 2006 and ...

Zhang Shuai Zhang Shuai ( zh , s = 张帅 , p = Zhāng Shuài ; ; born 21 January 1989) is a Chinese professional tennis player. She has a career-high doubles WTA rankings, ranking of world No. 2, achieved in July 2022 and a singles ranking of No. 22 re ...

; as defending champions and top seeds, they lost in the first round of the

; and they reached the semifinals of

, where they lost to

Gabriela Dabrowski Gabriela "Gaby" Dabrowski (; , ; born April 1, 1992) is a Canadian professional tennis player. She reached her career-high doubles ranking of world No. 3 on 15 July 2024. A three-time Grand Slam champion, she won the 2023 US Open doubles title, ...

Xu Yifan Xu Yifan (; ; born 8 August 1988), nicknamed Julie, is a Chinese professional tennis player who specializes in doubles. She reached a career-high ranking of No. 7 in doubles, on 13 January 2020. On 13 July 2015, she peaked at No. 148 in the s ...

. They fell in round-robin play at the WTA Finals. In the 2020 season disrupted by the

COVID-19 pandemic The COVID-19 pandemic (also known as the coronavirus pandemic and COVID pandemic), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), began with an disease outbreak, outbreak of COVID-19 in Wuhan, China, in December ...

, Krejčíková and Siniaková reached at least the semifinals of all six events they entered together. Their only title this year came at the Shenzhen Open. In major play, the team's run to the

semifinals was ended by No. 1 seeds

Hsieh Su-wei Hsieh Su-wei (; ; born 4 January 1986) is a Taiwanese professional tennis player. A former List of WTA number 1 ranked doubles tennis players, world No. 1 in Doubles tennis, doubles with nine Grand Slam (tennis), Grand Slam titles, she is rega ...

Barbora Strýcová Barbora Strýcová (; born 28 March 1986), formerly known as Barbora Záhlavová-Strýcová, is a Czech former professional tennis player who was ranked List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles. She won two Gra ...

, and they lost the

semifinal to eventual champions Babos/Mladenovic. The WTA Finals were cancelled this year.

2021–2023: return to No. 1, Olympic gold, career Grand Slam

In a "resurgent" season in 2021, Krejčíková and Siniaková won multiple important titles. In February, they started strong by taking home the Gippsland Trophy in Australia and finishing runners-up at the

to Mertens/Sabalenka. While they lost in the early rounds of several spring hardcourt events, on the clay in

Madrid Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...

they won the doubles title over Dabrowski and

Demi Schuurs Demi Schuurs (; born 1 August 1993) is a Dutch professional tennis player who specializes in doubles. On 22 October 2018, she peaked at No. 7 in the doubles rankings. In February 2015, she reached a career-high singles ranking of world No. 512. ...

. In June, Krejčíková turned in a historic performance at

2021 French Open The 2021 French Open was a Grand Slam (tennis), major level tennis tournament played on outdoor clay courts. It was held at the Stade Roland Garros in Paris, France, from 30 May to 13 June 2021, comprising singles, doubles and mixed doubles pla ...

, becoming the first player to win the tournament in singles and doubles simultaneously since

Mary Pierce Mary Caroline Pierce (born 15 January 1975) is a French former professional tennis player. She was ranked world No. 3 in singles and in doubles by the Women's Tennis Association (WTA). Pierce won 18 singles titles on the WTA Tour, including two ...

in 2000. This event, in which Krejčíková saved a match point, marked her rise to prominence in singles. In the doubles final, she and Siniaková beat No. 14 seeds

Bethanie Mattek-Sands Bethanie Mattek-Sands ( Bethanie Lynn Mattek; born March 23, 1985) is an American professional tennis player. She has won nine Grand Slam titles (five in women's doubles and four in mixed doubles), and an Olympic gold medal, and is a former w ...

Iga Świątek Iga Natalia Świątek (; born 31 May 2001) is a Polish professional tennis player. She has been ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women’s singles by the Women's Tennis Association, Women’s Tenn ...

. In the quarterfinals of

, the pair fell to

Veronika Kudermetova Veronika Eduardovna Kudermetova (born 24 April 1997) is a Russian professional tennis player. She has a career-high singles ranking of world No. 9, achieved on 24 October 2022, and a best WTA doubles ranking of No. 2, reached on 6 June 2022. In ...

and

Elena Vesnina Elena Sergeyevna Vesnina (born 1 August 1986) is a Russian former professional tennis player who was List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles. Vesnina is a four-time Grand Slam (tennis), Grand Slam champion, h ...

, despite having four match points for themselves. The Czechs were seeded No. 1 at the

Tokyo Olympics Tokyo Olympics may refer to: * 1940 Summer Olympics, Games of the XII Olympiad, cancelled due to World War II * 1964 Summer Olympics, Games of the XVIII Olympiad * 2020 Summer Olympics The officially the and officially branded as were an ...

in July–August; they won three

super tiebreak This page is a glossary of tennis terminology. A * Ace: Serve where the tennis ball lands inside the '' service box'' and is not touched by the receiver; thus, a shot that is both a serve and a winner is an ace. Aces are usually powerful and gen ...

s (including over Kudermetova/Vesnina) en route to the gold medal match, in which they beat the Swiss team

Belinda Bencic Belinda Bencic (; born 10 March 1997) is a Swiss professional tennis player. She has a career-high WTA rankings, ranking of world No. 4 which she achieved in February 2020. Bencic has won nine career singles titles, including Tennis at the 2020 ...

Viktorija Golubic Viktorija Golubic (; ; born 16 October 1992) is a Swiss professional tennis player. On 28 February 2022, she reached her career-high singles WTA ranking of No. 35. On 17 April 2023, she peaked at No. 61 in the doubles rankings. She is the curre ...

. They were also top-seeded at and won the

, where they twice beat Hsieh/Mertens (in the group stage and final), and Siniaková retook the No. 1 ranking. The pair was named the WTA Doubles Team of the Year for the second time. Krejčíková and Siniaková went undefeated () at the majors in 2022, winning all three Grand Slams that they entered. At the

, they won their fourth major by beating

Anna Danilina Anna Sergeyevna Danilina (; born 20 August 1995) is a Russian-born Kazakhstani tennis player. She has been ranked as high as No. 9 in doubles by the WTA. She is a Grand Slam mixed-doubles champion, having won the 2023 US Open with Harri Heliö ...

and

Beatriz Haddad Maia Beatriz "Bia" Haddad Maia (; born 30 May 1996) is a Brazilian professional tennis player. She reached a career-high of world No. 10 in singles and in doubles, becoming the first Brazilian woman to enter the top 10 in singles in the history of t ...

in a close final, . They were unable to defend their French Open title because Krejčíková had to pull out of the doubles draw after testing positive for COVID-19. As No. 2 seeds at

, they beat top-seeded Mertens/Zhang in the final . In September, their victory at the

completed their career Grand Slam; in the final against the unseeded pair of

Caty McNally Catherine "Caty" McNally (born November 20, 2001) is an American professional tennis player. She achieved her career-high singles ranking of world No. 54 on 22 May 2023 and her best WTA doubles ranking of No. 11 on 4 April 2022. She has won ei ...

and

Taylor Townsend Taylor Townsend (born April 16, 1996) is an American professional tennis player. She has a WTA career-high doubles ranking of world No. 2, achieved on February 24, 2025 and a singles ranking of No. 46, achieved on August 19, 2024. Townsend won ...

, the Czechs were down a set and before rallying—Siniaková said "we calmed down a little"—to win . They again reached the final of the WTA Finals, but lost to Mertens/Kudermetova, despite leading at one point in the deciding tiebreak. They were again named WTA Doubles Team of the Year. The team continued playing well at the start of 2023, making their first ever title defense at the

, beating

Shuko Aoyama is a Japanese professional tennis player who specializes in doubles. Aoyama turned professional after graduating from Waseda University. She reached a career-high singles ranking of world No. 182, on 9 February 2015, and a doubles ranking of ...

Ena Shibahara is an American-born Japanese professional tennis player who specializes in doubles. She reached her career-high rankings of world No. 4 in doubles and No. 119 in singles. Shibahara has won eleven doubles titles on the WTA Tour, including two W ...

in the final . This was their seventh Grand Slam title and stretched their major win streak to 24 matches. They continued their perfect record on the year at Indian Wells, winning the final in a super tiebreak over Beatriz Haddad Maia/

Laura Siegemund Laura Natalie Siegemund (born 4 March 1988) is a German professional tennis player. Siegemund reached her career-high doubles ranking of world No. 4 on 29 January 2024 and has won fourteen doubles titles on the WTA Tour. She is a three-time Gran ...

. The team struggled with injuries in the following months, withdrawing from

(Siniaková's right wrist) and

(Krejčíková's left leg) and losing in early rounds of tournaments from the

French French may refer to: * Something of, from, or related to France ** French language, which originated in France ** French people, a nation and ethnic group ** French cuisine, cooking traditions and practices Arts and media * The French (band), ...

to the

. They returned to form in September with their first title in six months at the

San Diego Open There are three sporting events named the San Diego Open: * San Diego Open (golf) now known as the Farmers Insurance Open, is a PGA Tour professional golf tournament played in La Jolla, San Diego, California, United States * San Diego Open (tennis) ...

(where Krejčíková also won in singles). They did not make it out of the group stage at the

. The next week, representing the

Czech Republic The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the south ...

at the Billie Jean King Cup finals, they won a group-deciding match against the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

, but fell in the deciding match to eventual champions

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

in the semifinals. On 11 November 2023, hours after the Billie Jean King Cup finals loss, Siniaková said she decided the team was not going to play together in the 2024 season, but did not rule out reuniting at some point such as for the

2024 Summer Olympics The 2024 Summer Olympics (), officially the Games of the XXXIII Olympiad () and branded as Paris 2024, were an international multi-sport event held in France from 26 July to 11 August 2024, with several events started from 24 July. P ...

. Her new doubles partner became

Storm Hunter Storm Hunter (née Sanders; born 11 August 1994) is an Australian professional tennis player. She reached world No. 1 in doubles on 6 November 2023, becoming the third Australian woman to hold the top spot. She also has a career-high singles ...

2024: Prague Open title and Paris Olympics

Krejčíková and Siniaková reunited at the

2024 Prague Open The 2024 Prague Open (branded as the Livesport Prague Open for sponsorship reasons) was a professional women's tennis tournament played on outdoor clay courts at the TK Sparta Prague. It was the 15th edition of the tournament, a WTA 250 tournam ...

in July, winning their first title together on home soil by defeating wild cards

and

Lucie Šafářová Lucie Šafářová (; born 4 February 1987) is a Czech professional tennis player who was ranked List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles, and No. 5 in singles. She is a five-time Grand Slam champion in doubles ...

in the final. They also teamed up at the

, losing in the quarterfinals to

Mirra Andreeva Mirra Aleksandrovna Andreeva (born on 29 April 2007) is a Russian professional tennis player. She has been ranked as high as world No. 6 in singles, achieved on 17 March 2025, and No. 18 in doubles, reached on 31 March 2025. Andreeva has won th ...

and

Diana Shnaider Diana Maximovna Shnaider (, ; born 2 April 2004) is a Russian professional tennis player. She has a career-high rankings of world No. 11 in singles and No. 9 in doubles, achieved in May 2025. Shnaider won women's doubles silver at the 2024 Par ...

Playing style

Krejčíková and Siniaková communicate very well on court thanks to their many years playing together. Their skills include quick reflexes at the net (especially Siniaková), smart hitting from the baseline (especially Krejčíková), and lobbing ability. The team often uses an

I-formation The I formation is one of the most common offensive formations in American football. The I formation draws its name from the vertical (as viewed from the opposing endzone) alignment of quarterback, fullback, and running back, particularly wh ...

, with the net player crouching at the center of the court before the service. The contrast of the players' personalities has been noted since their first year together. Krejčíková is considered the less excitable one; she once referred to Siniaková as "my wilder half".

Performance timeline

''Current as of 2023 Billie Jean King Cup finals.''

List of finals

Junior finals

WTA Tour finals

Doubles: 23 (17 titles, 6 runner–ups)

Note: Tournaments sourced fro
official WTA archives

Awards

WTA Awards

* Doubles Team of the Year: 2018, 2021, and 2022

ITF World Champions

ITF World Champions The International Tennis Federation (ITF) designates a World Champion each year based on its own majority opinion of performances throughout the year, emphasizing the Grand Slam tournaments,ITF Constitution, p.26, Rule 2.2(a)(iii) and also consid ...

: 2018, 2021, and 2022

Notes

References

External links

Barbora Krejčíková
an
Kateřina Siniaková
from the

{{DEFAULTSORT:Krejcikova, Barbora and Siniakova, Katerina Tennis doubles teams Czech female tennis players WTA number 1 ranked doubles tennis players Grand Slam (tennis) champions in girls' doubles French Open junior champions Wimbledon junior champions US Open (tennis) junior champions Grand Slam (tennis) champions in women's doubles Australian Open (tennis) champions French Open champions Wimbledon champions US Open (tennis) champions Tennis players at the 2020 Summer Olympics Medalists at the 2020 Summer Olympics Olympic medalists for the Czech Republic in tennis Olympic tennis players for the Czech Republic Olympic gold medalists for the Czech Republic Living people 1990s births