Tracy Austin

She won the women's singles in the Ojai Tennis Tournament in 1977.[4]

Austin turned professional in October 1978.[5] That same month, she won her first professional singles title, defeating Betty Stöve in the final of the Porsche Tennis Grand Prix in Filderstadt, West Germany.[6][7]

Austin defeated 35-year-old Billie Jean King in the quarterfinals of the 1979 Wimbledon Championships, then lost to Martina Navratilova in straight sets in the semifinals. Austin then became the youngest ever U.S. Open champion, aged 16 years and 9 months, by defeating Navratilova in the semifinals and Chris Evert in the final. Evert had been attempting to win the title for the fifth consecutive year. Earlier that year, Austin ended Evert's 125-match winning streak on clay by beating her 6–4, 2–6, 7–6 in a semifinal of the Italian Open. The Associated Press named Austin its Female Athlete of the Year for 1979.

Austin lost in the semifinals of both Grand Slam tournaments she played in 1980. Evonne Goolagong Cawley, seeded fourth and the eventual champion, defeated Austin at the Wimbledon Championships. As the top seed and defending champion at the US Open, Austin was expected to extend her five-match winning streak against third-ranked Evert. Austin took a 4–0 lead in the first set before Evert won 16 of the final 20 games to win the match. Evert went on to beat Hana Mandlíková in the final. Austin was ranked the World No. 1 singles player in 1980 for two weeks (April 7–20) and then for 19 weeks (July 7-November 17), partly because she captured the two sponsors' tour-ending events. Austin defeated Navratilova to win the Avon Championships in March and Andrea Jaeger to capture the 1980 Colgate Series Championships in January 1981. In 1980, Austin won the Wimbledon mixed doubles title with her brother John, becoming the first brother and sister team to win a Grand Slam title together.

During the first four months of 1981, Austin played only two events because of chronic injuries. On grass, she won the BMW Championships in Eastbourne, United Kingdom without losing a set. After Wimbledon, Austin won 26 consecutive matches and four consecutive tournaments. She defeated Pam Shriver in the final of the Wells Fargo Open in San Diego, and three weeks later, she beat both Navratilova and Evert in straight sets to win the Canadian Open in Toronto. As the third-seeded player at the US Open, Austin defeated fourth-seeded Navratilova in the final. Navratilova, however, ended Austin's winning streak in the final of the U.S. Indoor Championships. In Europe during the autumn, Austin lost to Sue Barker in the quarterfinals of the Brighton International in Brighton, United Kingdom, but recovered the following week to defeat Navratilova in the final of the Porsche Tennis Grand Prix in Stuttgart, West Germany. At the final Grand Slam tournament of the year, Austin was seeded second but lost to sixth-seeded Shriver in the Australian Open quarterfinals. The 1981 year-ending Toyota Series Championships featured two matches against Evert and one against Navratilova. Evert won her round robin match with Austin, then Austin defeated Evert in their semifinal. Austin then won the tournament with a three-set defeat of Navratilova. The Associated Press named Austin its 1981 Female Athlete of the Year for the second time.

Austin was the first opponent of Steffi Graf when the German made her professional debut at the 1982 Porsche Tennis Grand Prix in Stuttgart. Austin defeated the 13-year-old Graf 6–4, 6–0.

Back injuries and recurring sciatica then began to impair Austin's effectiveness and sidelined her for long stretches. Billie Jean King, seeded twelfth, upset third-seeded Austin in the 1982 Wimbledon quarterfinals. Several weeks later, however, Austin won her 30th and final top-level singles title in San Diego. Austin had a good showing at the 1982 season-ending Toyota Series Championships where she defeated Jaeger, the World No. 3, in straight sets to reach the semifinals. However, she was unable to repeat 1981's victory over Evert, who defeated her in the semifinals.

In 1983, she was the runner-up at the Family Circle Cup, losing the final to Navratilova in three sets. She also reached the quarterfinals of the French Open.

Austin played sporadically from 1984 to 1987 and tried yet another comeback on the tour in 1988 when she played in seven doubles tournaments, and in 1989, when she played in one doubles and two singles tournaments. A highlight of this comeback included a semifinal showing in the 1988 US Open mixed doubles with partner Ken Flach.[8] This comeback was ended by a near-fatal motor vehicle accident on August 3, 1989.[9]

In 1992, Austin became the youngest person to be inducted into the International Tennis Hall of Fame, at the age of 29.

She attempted a second comeback in 1993 and 1994 but was not particularly successful. In 1993, Austin upset Rennae Stubbs and Katerina Maleeva at the Evert Cup in Indian Wells, California, then lost to Stephanie Rottier. At the WTA Manhattan Beach event, she upset Gigi Fernández and Elena Likhovtseva, then lost to Gabriela Sabatini in the round of 16. he wins over Maleeva, Fernandez, and Likhovtseva began a buzz that Austin might become at least a top 20 player again. However, in 1994, her results were not as promising and at the Evert Cup in Indian Wells, California, Austin lost in the second round to Steffi Graf, and Austin soon retired in June 1994.[10]