The Billie Jean King Cup is the premier international team competition in women's tennis, launched as the Federation Cup in 1963 to celebrate the 50th anniversary of the International Tennis Federation (ITF). The name was changed to the Fed Cup in 1995, and changed again in September 2020 in honor of former World No. 1 Billie Jean King. The Billie Jean King Cup is the world's largest annual women's international team sports competition in terms of the number of nations that compete. The current Chairperson is Katrina Adams.
The Russia women's national tennis team represented Russia in Billie Jean King Cup tennis competition and are governed by the Russian Tennis Federation. They compete in the World Group. Following the 2020 ban of Russia by the World Anti-Doping Agency (WADA) and the Court of Arbitration for Sport (CAS), it competed and won the 2020–21 Billie Jean King Cup under the RTF flag and name. After the 2022 Russia invasion of Ukraine, the International Tennis Federation suspended Russia from Billie Jean King Cup competitions.
The Belarus women's national tennis team represented Belarus in Billie Jean King Cup tennis competition and are governed by the Belarus Tennis Association. They compete in the World Group. After the 2022 Russia invasion of Ukraine, the International Tennis Federation suspended Russia and Belarus from Billie Jean King Cup competitions.
Demi Schuurs is a Dutch professional tennis player who specializes in doubles.
Margarita Melikovna Betova is a Russian tennis player.
Storm Hunter is an Australian professional tennis player. She reached a career-high singles ranking of world No. 119 on 18 October 2021, and a career-high doubles ranking of world No. 1 on 6 November 2023, becoming the third Australian woman to hold the top spot.
Veronika Eduardovna Kudermetova 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. She also has won three WTA 1000 titles, and won the 2022 WTA Finals with Elise Mertens. In addition, she reached the doubles final of Wimbledon in 2021, with Elena Vesnina.
Nao Hibino is a Japanese professional tennis player. She has been ranked as high as No. 56 in singles and No. 43 in doubles by the Women's Tennis Association (WTA). Hibino has won three singles and three doubles titles on the WTA Tour. Along with that, she has won eight singles and ten doubles tournaments on the ITF Women's World Tennis Tour.
Ekaterina Evgenyevna Alexandrova is a Russian professional tennis player.
Anastasia Sergeyevna Potapova is a Russian professional tennis player. She has a career-high singles ranking of world No. 21 by the WTA, achieved on 19 June 2023, and a doubles ranking of 40, reached on 5 December 2022. Potapova is a former junior world No. 1, as well as the 2016 Wimbledon Championships girls' singles champion.
Martina Trevisan is an Italian professional tennis player. She has a career-high singles ranking of world No. 18 by the Women's Tennis Association (WTA), achieved in May 2023, and in 2021 had a peak doubles ranking of world No. 138.
Liudmila Dmitrievna Samsonova is a Russian professional tennis player. She also competed for Italy from 2014 to 2018. Samsonova has career-high WTA rankings of No. 12 in singles and No. 40 in doubles.
The 2020–21 Billie Jean King Cup was the 58th edition of the international women's tennis team's tournament and the first to be styled as the Billie Jean King Cup.
The 2020 Billie Jean King Cup qualifying round was played on 7–8 February 2020. The eight winners of this round qualified for the 2020 Billie Jean King Cup Finals in Budapest.
The finals, formerly known as World Group, is the highest level of Billie Jean King Cup competition in 2020–21. It was originally scheduled to be played on indoor clay courts at the László Papp Budapest Sports Arena in Budapest, Hungary, from 14 until 19 April 2020, but was postponed due to COVID-19. The new venue was established to be the O2 Arena, in Prague, on indoor hard court. The ties were contested in a best-of-three rubbers format and are played on one day. There were two singles matches, followed by a single doubles tie.
The 2022 Billie Jean King Cup qualifying round was played on 15 and 16 April 2022. The nine winners of this round will qualify for the 2022 Billie Jean King Cup Finals.
The 2022 Billie Jean King Cup was the 59th edition of the international women's tennis team's tournament.
This is the list of the main career statistics of professional Russian tennis player Veronika Kudermetova. She left her mark in both singles and doubles events, her achievements happened on many levels. On the WTA rankings, she get to her both career-highs in 2022; in singles, to the place of No. 9 while in doubles, she became world No. 2. She has won two singles titles and seven doubles titles on the WTA Tour. In addition, she has won five WTA Challenger titles, as well as 20 ITF Circuit titles. She is also active in playing in international tournaments for Russia, winning one Billie Jean King Cup title and reaching fourth place at the Summer Olympics in doubles event alongside Elena Vesnina.
The 2023 Billie Jean King Cup is the 60th edition of the Billie Jean King Cup, a tournament between national teams in women's tennis.
The Billie Jean King Cup finals was the highest level of the Billie Jean King Cup competition in 2023. The competition took place in Seville, Spain, from 7 to 12 November 2023. The ties were contested in a best-of-three rubbers format and played on one day. There were two singles followed by a doubles. The finals featured 12 teams.
Switzerland 
