Billie Jean King, a former world No. 1 American tennis player, secured 39 Grand Slam titles across singles, women's doubles, and mixed doubles. King's contributions extended to team victories, representing the United States in seven Federation Cups and nine Wightman Cups. Beyond her athletic achievements, she has been a prominent figure in advocating for gender equality in sports and society.
In 1982, when King reached the Wimbledon semi-finals, she was the oldest female semi-finalist since Dorothea Douglass Lambert Chambers in 1920.
In 1939, Bobby Riggs won the Wimbledon men's singles title.
In 1967, King won the singles, women's doubles, and mixed doubles titles at both Wimbledon and the U.S. Championships, the first woman to do that since Alice Marble in 1939.
In 1941, Bobby Riggs was considered the World No. 1 male tennis player.
On November 22, 1943, Billie Jean King, née Moffitt, was born. She is an American former world No. 1 tennis player, also known as BJK.
In 1946, Bobby Riggs was considered the World No. 1 male tennis player.
In 1947, Bobby Riggs was considered the World No. 1 male tennis player.
Marilyn Barnett, who later had an affair with Billie Jean King, was born on January 28, 1948.
From 1959 through 1965, Billie Jean King went through thirteen unsuccessful attempts to win a Grand Slam singles title. In 1966, at the age of 22, she finally won the first of her six singles titles at Wimbledon.
In 1959, Billie Jean King made her Grand Slam debut at the U.S. Championships at age 15, losing in the first round.
In 1959, Billie Jean King played her first Grand Slam singles event, beginning her journey in major tennis tournaments.
In 1960, Billie Jean King won her first tournament in Philadelphia at the Philadelphia and District Grass Court Championships, marking an early milestone in her career.
1961 marks Billie Jean King's debut at Wimbledon. From her debut in 1961 until 1976, she had played in the final of one of the three championship events for women every year.
In 1961, Billie Jean King graduated from Long Beach Polytechnic High School, marking a milestone before her ascent in the tennis world.
In 1961, Billie Jean King, at age 17, gained international recognition by winning the Wimbledon women's doubles title with Karen Hantze, becoming the youngest team to win the title.
In 1962, Billie Jean King upset Margaret Court, the World No. 1, at Wimbledon, and repeated her doubles victory with Karen Hantze.
In 1963, Billie Jean King faced Margaret Court in the Wimbledon final, where Court prevailed, marking a significant match in their rivalry.
In 1963, Billie Jean King was on the winning United States team in the Federation Cup, contributing to the team's victory.
In 1963, while attending Cal State LA, Billie Jean King met Larry King in a library, beginning their relationship.
In 1964, Billie Jean King left Los Angeles State College to focus on her tennis career, demonstrating her commitment to the sport.
In 1964, Billie Jean King made a full-time commitment to tennis with financial support to train in Australia, signifying a pivotal decision in her career.
In the autumn of 1964, Billie Jean and Larry King got engaged.
On September 17, 1965, Billie Jean King married Larry King in Long Beach. They had met while she was attending Cal State LA.
From 1959 through 1965, Billie Jean King went through thirteen unsuccessful attempts to win a Grand Slam singles title. In 1966, at the age of 22, she finally won the first of her six singles titles at Wimbledon.
In 1965, Billie Jean King defeated Ann Haydon-Jones at the Fed Cup but lost to Margaret Court in the final. At Wimbledon, she lost to Maria Bueno in the semi-finals.
In 1967, King returned to the Australian summer tour for the first time since 1965, playing seven events.
In 1969, it marked the first year since 1965 that Billie Jean King did not win at least one Grand Slam singles title.
From 1966 to 1975, Billie Jean King was the year-ending World No. 1 in six of the ten years, demonstrating her dominance in women's tennis.
From 1966 to 1975, Billie Jean King's Grand Slam record was comparable to Margaret Court's, with the two winning 24 of the 40 Grand Slam singles tournaments held during this period.
In 1966, Billie Jean King was on the winning United States team in the Federation Cup, adding to her achievements in team competitions.
In 1966, after thirteen unsuccessful attempts, Billie Jean King won her first Wimbledon singles title, defeating Maria Bueno in the final.
In 1967, Billie Jean King contributed to the United States team's victory in the Federation Cup, marking another successful year.
In 1967, Billie Jean King successfully defended her title at the South African Tennis Championships, defeating Maria Bueno in the final. She also played the French Championships for the first time, reaching the quarterfinals. She won all four of her matches at the Federation Cup in West Germany. She secured her second consecutive Wimbledon singles title and won her first U.S. Championships without losing a set. She won the singles, women's doubles, and mixed doubles titles at both Wimbledon and the U.S. Championships. She also returned to the Australian summer tour.
In 1967, King criticized the United States Lawn Tennis Association (USLTA) for its practice of "shamateurism," where top players were paid under the table, arguing that this kept the game elitist. This positioned King as a force in the opening of tennis to professionalism.
Before the start of the open era in 1968, King earned US$100 a week as a playground instructor and student at California State University, Los Angeles, when not playing in major tennis tournaments.
By 1968, King realized that she was attracted to women.
In early 1968, Billie Jean King won three consecutive tournaments in Australia, including the Australian Championships. She continued winning upon her return to the United States and then in Europe. She won her third consecutive Wimbledon singles title. On September 24, 1968, she had surgery to repair cartilage in her left knee.
After undergoing knee surgery in September 1968, Billie Jean King said that it took eight months, until May 1969, for her knee to recover completely from the surgery.
In 1969, Billie Jean King participated in the Australian summer tour but did not win a tournament. She lost in the Australian Open final to Margaret Court. She later won the Pacific Coast Pro and the Los Angeles Pro, as well as two tournaments in South Africa. She reached the Wimbledon final but lost to Ann Haydon-Jones and lost in the quarterfinals of the US Open. This was the first year since 1965 that King did not win at least one Grand Slam singles title. She finished the year with titles at the Pacific Southwest Open in Los Angeles, the Stockholm Indoors, and the Midland (Texas) Pro.
In September 1970, Billie Jean King advocated for better pay for female tennis players. At the Pacific Southwest Open, the prize money for men was significantly higher than for women, leading King and other women to boycott the tournament and organize the women-only Houston Virginia Slims invitational. This helped launch a series of women-only tournaments.
In 1969, during the Pacific Southwest Open, Billie Jean King expressed her motivation for 1970, stating she felt like a kid again and expected to have a big year.
In 1970, Margaret Court won the Grand Slam. Court's 1973 season was her first full season since winning the Grand Slam in 1970.
Although Billie Jean King won only one Grand Slam singles title in 1971, this was the best year of her career in terms of tournaments won, with a 112–13 win–loss record.
From 1971 to 1975, Billie Jean King won seven of the ten Grand Slam singles tournaments she played, showcasing a dominant period in her career.
In 1971, King began an affair with her secretary, Marilyn Barnett.
In 1971, King had an abortion that was made public in a Ms. magazine article. Larry revealed Billie Jean's abortion without consulting her.
In 1971, King's husband, Larry King, created the idea to form a nine player women's group with the financial backing of World Tennis magazine founder Gladys Heldman and the sponsorship of Virginia Slims chairman Joe Cullman. King became the first woman athlete to earn over US$100,000 in prize money.
In 1971, Margaret Court missed significant portions of the year due to childbirth. Court's 1973 season was her first full season since winning the Grand Slam in 1970, as she had missed significant portions of 1971 and 1972 due to childbirth.
In August 1971, Billie Jean King won the US Open without losing a set. She also won tournaments in Houston, Indianapolis, Louisville, Phoenix, and London (Wembley Pro). In 1971, she became the first female tennis player to earn $100,000 a year, receiving a congratulatory call from President Richard M. Nixon.
In early May 1971, Billie Jean King lost to Christine Truman Janes at Hurlingham, United Kingdom, but won the German Open in Hamburg. She lost to Margaret Court at the Queen's Club tournament in London and lost in Wimbledon semi-finals. She won the Rothmans North of England Championships.
In late 1971, Billie Jean King played in New Zealand and was nearby the Australian Open, but she decided not to participate in the 1972 Australian Open.
In 1972, Billie Jean King was the joint winner, with John Wooden, of the Sports Illustrated Sportsperson of the Year award, acknowledging her success and impact.
In 1972, Billie Jean King won the French Open. She played the 1980 French Open, her first time since she won the event in 1972 and completed a career singles Grand Slam.
In 1972, Billie Jean King won three Grand Slam singles titles but chose not to play the Australian Open. She prioritized the Virginia Slims winter tournaments. Her dominance was aided by Margaret Court's absence from the tour.
In 1972, Billie Jean King's French Open win made her only the fifth woman in tennis history to achieve a "career Grand Slam", winning the singles titles at all four Grand Slam events.
In 1972, King won the US Open but received US$15,000 less than the men's champion Ilie Năstase. She threatened to boycott the next year if the prize money was not equal.
In 1972, Margaret Court missed significant portions of the year due to childbirth. Court's 1973 season was her first full season since winning the Grand Slam in 1970, as she had missed significant portions of 1971 and 1972 due to childbirth.
In early 1972, Billie Jean King admitted that cramps associated with an abortion caused her to retire from a match with Chris Evert in St. Petersburg.
On September 20, 1973, Billie Jean King defeated Bobby Riggs in the "Battle of the Sexes" at the Houston Astrodome. The match was viewed by an estimated 50 million people in the U.S. and 90 million in 37 countries. This victory is considered a significant event in promoting respect for women's tennis.
In 1973, Billie Jean King completed the Triple Crown at Wimbledon. She then played Bobby Riggs in the Battle of the Sexes after a series of Virginia Slims tournaments, and ended the year with wins in Phoenix, Hawaii, and Tokyo, and was runner-up in Baltimore.
In 1973, Billie Jean King defeated Bobby Riggs in an exhibition match and won $100,000.
In 1973, Billie Jean King's husband Larry co-founded World Team Tennis with Dennis Murphy, Jordan Kaiser, and Fred Barman.
In 1973, King became the first president of the women's players union, the Women's Tennis Association.
In 1973, Margaret Court dominated by winning three Grand Slam singles titles and was ranked world No. 1. Billie Jean King started the year inconsistently, missing tournaments due to a wrist injury. King defeated Court at the Virginia Slims of Indianapolis, ending Court's winning streak, but struggled in subsequent tournaments, losing twice to Court.
In 1973, at the age of 29, Billie Jean King won the "Battle of the Sexes" tennis match against 55-year-old Bobby Riggs. She also founded the Women's Tennis Association and the Women's Sports Foundation and helped persuade Virginia Slims to sponsor women's tennis.
In 1973, the US Open became the first major tournament to offer equal prize money for men and women, a significant achievement for King's advocacy.
In 1974, Billie Jean King won five of the first seven tournaments she contested, including the Virginia Slims of San Francisco and the U.S. Indoor Championships, but had some upsets, including losses to Olga Morozova at Philadelphia and Wimbledon. She won her fourth US Open singles title.
In 1974, King, with husband Larry King and Jim Jorgensen, founded womenSports magazine and started the Women's Sports Foundation. Also in 1974, World TeamTennis began, founded by Larry King, Dennis Murphy, Frank Barman and Jordan Kaiser.
In 1974, World Team Tennis began. Billie Jean King remained involved with World Team Tennis for decades, eventually sharing ownership with her ex-husband, her life partner Ilana Kloss and USTA.
From 1966 to 1975, Billie Jean King was the year-ending World No. 1 in six of the ten years, demonstrating her dominance in women's tennis.
From 1966 to 1975, Billie Jean King's Grand Slam record was comparable to Margaret Court's, with the two winning 24 of the 40 Grand Slam singles tournaments held during this period.
From 1971 to 1975, Billie Jean King won seven of the ten Grand Slam singles tournaments she played, showcasing a dominant period in her career.
In 1975, Billie Jean King played singles only half the year and retired temporarily from tournament singles competition immediately after winning her sixth Wimbledon singles title.
In 1975, Billie Jean King was one of the Time Persons of the Year, recognizing her influence and achievements beyond the tennis court.
In November 1976, Billie Jean King had her third knee surgery, this time on her right knee.
In 1976, Billie Jean King competed at Wimbledon and extended her streak of reaching a final in one of the three championship events for women every year since her debut in 1961, continuing until 1976.
In 1976, Billie Jean King focused on doubles and mixed doubles, winning the mixed doubles title at the US Open. She underwent knee surgery in November.
In 1976, Billie Jean King was part of the winning United States team in the Federation Cup, continuing her success in the competition.
In March 1977, Billie Jean King requested a wild card entry to the Virginia Slims Championships and chose to play in the Lionel Cup tournament, drawing criticism for the tournament allowing Renée Richards, a transgender athlete, to participate. King ultimately won the tournament.
In 1977 at Wimbledon, Chris Evert defeated Billie Jean King for the first time at a Grand Slam singles tournament. It was also the first time King competed at Wimbledon and did not reach a final.
In 1977, Billie Jean King recalled that doctors predicted in 1968 that her left knee would only allow her to play competitive tennis for two more years.
In December 1978, Billie Jean King underwent major surgery on her left foot, leading to limited play in 1979.
In 1978, Billie Jean King played ten singles tournaments during the first half of the year and focused on doubles after Wimbledon.
In 1978, Billie Jean King teamed with Navratilova to win the women's doubles title at the US Open. She also participated in the Federation Cup and Wightman Cup. She hinted at retirement from major singles competitions and had foot surgery in December.
In 1979, Billie Jean King played only one event, doubles in the Federation Cup tie against Spain, due to her foot surgery in December 1978.
In 1979, Billie Jean King was on the winning United States team in the Federation Cup, concluding a successful period in the competition.
In 1979, King played Tracy Austin in the Wimbledon quarterfinal, where King lost to Austin. This result was reversed in 1982 when King beat Austin.
In 1979, several top players were asked who they would pick to help them recover from a hypothetical deficit of 1–5 (15–40) in the third set of a match on Wimbledon's Centre Court. Martina Navratilova, Rosemary Casals, and Françoise Dürr all picked King.
In 1979, the Kings asked Barnett to leave their house, but she refused and threatened to leak sensitive documents.
In 1980, Billie Jean King competed at Wimbledon but did not feature in a final. The only other years she competed at the championship and did not feature in a final were 1980 and 1982.
In 1980, Billie Jean King played at the French Open for the first time since winning in 1972, losing in the quarterfinals.
In May 1981, Marilyn Barnett sued the Kings in a palimony lawsuit after a suicide attempt. Billie Jean acknowledged the relationship shortly afterward, causing her to lose endorsements.
In December 1981, a court order stipulated that Barnett leave the house. Barnett's threats to publish private correspondence between her and King in exchange for money were considered close to extortion.
In 1981, Billie Jean King teamed with Navratilova to win her 39th and final Grand Slam title at the US Open. Navratilova then decided to find a new doubles partner, leading to tension between them.
In November 1982, Barnett's palimony suit was thrown out of court.
At the beginning of the year, Billie Jean King claimed in her 1982 autobiography that she intentionally lost a match in Long Beach due to an argument with her husband.
In 1982, Billie Jean King began a comeback, winning the Edgbaston Cup in Birmingham, her first singles title in over two years. At Wimbledon, she reached the semi-finals, becoming the oldest female semi-finalist since 1920, before being defeated by Chris Evert. King finished 1982 ranked 14th in the world.
In 1982, Billie Jean King competed at Wimbledon but did not feature in a final. The only other years she competed at the championship and did not feature in a final were 1980 and 1982.
In 1982, King became the league commissioner for World TeamTennis.
In March 1983, the house contested in the palimony suit was destroyed during a series of freak storms that lashed the southern California coastline.
In 1983, Billie Jean King played her last Grand Slam singles event, marking the end of an era in her career.
In 1983, Billie Jean King reached the semi-finals in her final appearance at Wimbledon, losing to Andrea Jaeger. During the tournament, Jaeger was highly motivated to beat King because King had defeated Turnbull, a favorite of Jaeger's.
In 1983, King won the Edgbaston Cup in Birmingham, becoming the oldest WTA player to win a singles tournament. She also reached the mixed doubles final at Wimbledon, partnering with Steve Denton. King also made her final appearance at the US Open.
In 1984, Billie Jean King and Vijay Amritraj were seeded sixth for the Wimbledon mixed doubles, but they withdrew before the tournament began.
In 1984, King became a major owner of World TeamTennis.
In a 1984 interview, just after she had turned 40, King said,
In 1987, Billie Jean King was inducted into the International Tennis Hall of Fame, marking a significant recognition of her contributions to the sport.
In 1987, Billie Jean and Larry's marriage ended after Billie Jean fell in love with her doubles partner, Ilana Kloss. Despite the end of their marriage, Billie Jean and Larry remained close.
In March 1990, King retired from competitive play in doubles after losing a second round match at the Virginia Slims of Florida tournament with partner Jennifer Capriati.
In 1990, Billie Jean King was inducted into the National Women's Hall of Fame, honoring her contributions to women's rights and sports.
In 1996, as captain of the United States Fed Cup team and coach of its women's Olympic tennis squad, King guided the U.S. to the Fed Cup championship and helped Lindsay Davenport, Gigi Fernández, and Mary Joe Fernández capture Olympic gold medals.
In 1999, King was elected to serve on the board of directors of Philip Morris Incorporated, which garnered criticism from anti-tobacco groups. She no longer serves in that capacity.
In 2002, King dismissed Capriati from the Fed Cup team for violating rules about personal coaches, leading to divided opinions and controversy.
In 2006, the USTA National Tennis Center in New York City was renamed the USTA Billie Jean King National Tennis Center, celebrating her impact on tennis.
In 2008, King became a member of the Board of Honorary Trustees for the Sports Museum of America, which opened in 2008. The museum houses the Billie Jean King International Women's Sports Center.
In 2010, Billie Jean King was bestowed the Fed Cup Award of Excellence, adding to her list of accolades for her tennis career.
As of 2012, King was involved in the Women's Sports Foundation and the Elton John AIDS Foundation. She also served on the President's Council for Fitness, Sports and Nutrition.
In December 2013, US President Barack Obama appointed King to represent the United States at the 2014 Winter Olympics in Sochi, Russia, a gesture interpreted as a signal on gay rights.
On February 7, 2014, the day of the 2014 Winter Olympics opening ceremony, Betty Moffitt, King's mother, died. King was forced to drop out of the delegation due to her mother's ill health.
On June 16, 2017, Billie Jean King delivered the Northwestern University commencement address in Evanston, Illinois.
In 2017, King sold her majority ownership stake of the league to Mark Ein and Fred Luddy.
In September 2018, King and Kloss became minority owners of the Los Angeles Dodgers baseball team.
On October 18, 2018, Billie Jean King and Ilana Kloss were married by former New York City Mayor David Dinkins in a secret ceremony. They have residences in New York City and Chicago.
In 2018, Billie Jean King won the BBC Sports Personality of the Year Lifetime Achievement Award, celebrating her career and contributions to sports.
In 2018, King attended the 75th Golden Globe Awards as a guest of Emma Stone.
In October 2020, King and Kloss became part of the ownership group of Angel City FC, a Los Angeles–based team set to start play in the National Women's Soccer League in 2022.
In 2020, the Federation Cup was renamed the Billie Jean King Cup in her honor, recognizing her influence on the sport.
In May 2022, Mark Walter Group and BJK Enterprises partnered with the Professional Women's Hockey Players Association (PWHPA) to create a new professional women's ice hockey league in North America.
In 2022, Angel City FC, of which King is part of the ownership, began play in the National Women's Soccer League.
In 2022, Billie Jean King was awarded the French Legion of Honour, recognizing her achievements and influence on tennis internationally.
On June 29, 2023, the Mark Walter Group and BJK Enterprises purchased the Premier Hockey Federation (PHF) to create a new professional women's ice hockey league in North America.
In 2023, King competed in season ten of "The Masked Singer" as "Royal Hen" and was the first of Group B to be eliminated.
On January 1, 2024, the new professional women's ice hockey league in North America, created after the buyout of the Premier Hockey Federation, began with the first game played between New York and Toronto in Toronto.
In 1973, King won $100,000 after defeating Bobby Riggs, equivalent to $707,000 in 2024 when adjusted for inflation.
In 2024 terms, the $8 Billie Jean King saved to buy her first racket as an 11-year-old would be equivalent to $92.40, showing her early dedication to tennis.
In 2024, Billie Jean King received a Congressional Gold Medal, honoring her achievements and contributions to society.
In 2025, Billie Jean King returned to college with the intent of finishing her degree, highlighting her commitment to education.
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