Caroline Wozniacki is a Danish professional tennis player, who was ranked world No 1 in singles for a total of 71 weeks, including at the end of 2010 and 2011. She achieved the top ranking for the first time on October 11, 2010, becoming the 20th player in the Open Era and the first from a Scandinavian country to hold the top position. Caroline Wozniacki won a total of 30 career titles, including the 2018 Australian Open.
Caroline Wozniacki was born on July 11, 1990, in Odense, Denmark. She is of Polish descent. Her parents played professional sports – volleyball and football, so she started in tennis at an early age. Caroline Wozniacki had a career-high junior ranking of No 2 in the world. She won several junior tournaments in 2005, including the Orange Bowl
Caroline Wozniacki started her professional career in 2005, debuting in the WTA Tour at the WTA 1000 Western & Southern Open in Cincinnati, losing to the top-seeded and eventual champion Patty Schnyder in the first round. In 2006, she won the ITF title at the $25,000 W25 Istanbul (Turkey) and reached the quarter-finals of the WTA 250 Swedish Open Women.
In 2007, Caroline Wozniacki started the season winning the ITF titles at the $100,000 Ortisei (Italy), $75,000 W80 Las Vegas, NV (USA), and reaching the final of the $50,000 Latina (Italy). Although too young, she started gaining experience and reached the semi-finals of the WTA 250 Kinoshita Group Japan Open Tennis Championships.
Caroline Wozniacki won her first WTA title in 2008, triumphing at the WTA 250 Swedish Open Women. But by the end of the season, she won the titles at the WTA 500 Pilot Pen Tennis presented by Schick and WTA 250 Kinoshita Group Japan Open Tennis Championships, also reached the fourth round at the Australian Open and the US Open and the Masters’ tournaments WTA 1000 Miami Open and WTA 1000 Indian Wells Open. During the season she also was the runner-up at the WTA 250 Fortis Championships, the semi-finals of the WTA 250 Banka Koper Slovenia Open. Following her strong performance during her season, Caroline Wozniacki finished as the world’s No 12.
In 2009, she started the season with quarter-finals of the WTA 250 ASB Classic and WTA 500 Sydney International, before reaching the third round of the Australian Open. In February, Caroline Wozniacki reached the final of the WTA 250 Memphis Open and the quarter-finals of the WTA 1000 Indian Wells Open and WTA 1000 Miami Open, before winning the WTA 250 MPS Group Championships and playing in the final of the WTA 500 Credit One Charleston Open. In May, she played her first Masters’ final at the WTA 1000 Madrid Open, losing to Dinara Safina. Caroline Wozniacki won the title at the WTA 500 The Hastings Direct International Championships and was the runner-up at the WTA 250 Swedish Open Women and WTA 500 Pilot Pen Tennis presented by Schick. In August, she reached the final of the US Open and thus entered into the world’s Top 10. She also played at the Year End Championships, reaching the semi-finals. She ended the season as the world’s No 4.
Caroline Wozniacki started the 2010 season, by reaching the fourth round of the Australian Open and the final of the WTA 1000 Indian Wells Open. During the season, won the title in WTA 250 MPS Group Championships, WTA 250 E-boks Danish Open, WTA 1000 Canadian Open, WTA 500 Pilot Pen Tennis presented by Schick, WTA 1000 Toray Pan Pacific Open Tennis, and WTA 1000 China Open. She played in the semi-finals of the US Open and the quarter-finals of the French Open / Roland Garros. At the Year End Championships, she was the runner-up, losing to Kim Clijsters. She finished the season as the world’s number one.
In 2011, continue dominating the world women’s tennis, keeping her top position during the entire year, despite only the week from February 13. She won the titles at the WTA 1000 Dubai Duty Free Tennis Championships, WTA 1000 Indian Wells Open, WTA 500 Credit One Charleston Open, WTA 500 Brussels Open, WTA 250 E-boks Danish Open, and WTA 500 Connecticut Open, but also runner-up at the WTA 500 Qatar TotalEnergies Open and WTA 500 Porsche Tennis Grand Prix in Stuttgart. At the Grand Slam tournaments, Caroline Wozniacki reached the semi-finals of the Australian Open and the US Open, the fourth round of the Wimbledon, and the third round of the French Open / Roland Garros. She competed also at the Year End Championships as top-seeded, but after the short season did not overcome the group stage with two losses and one win.
However, in 2012, Caroline Wozniacki did not perform in top form, winning only the WTA 250 Hana Bank Korea Open and WTA 500 VTB Kremlin Cup titles. She reached the quarter-finals of the Australian Open, the semi-finals of the WTA 1000 Miami Open, and the WTA 1000 Canadian Open. Caroline Wozniacki competed also at the London 2012 Olympics, reaching the quarter-finals. Thus, she ended the season as the world’s No 10 and for a while even left the women’s Top 10.
In 2013, Caroline Wozniacki left the world’s number-one position, but continue performing strong, although not in her best form. She finished as a runner-up at the WTA 1000 Indian Wells Open and at the end of the season won her only title at the WTA 250 BGL BNP Paribas Luxembourg Open. Meanwhile, she reached the semi-finals of the WTA 1000 Toray Pan Pacific Open Tennis, WTA 1000 Dubai Duty Free Tennis Championships, WTA 500 Connecticut Open, and WTA 500 Rothesay International Eastbourne.
Caroline Wozniacki made a strong season in 2014, finishing as runner-up at the US Open and WTA 500 Toray Pan Pacific Open Tennis. During the season she won the title at the WTA 250 TEB BNP Paribas Istanbul Cup. At the Grand Slam tournaments, she was the runner-up at the US Open and reached the fourth round of Wimbledon. During the season, Caroline Wozniacki was the runner-up at the WTA 500 Toray Pan Pacific Open Tennis and also reached the semi-finals of the WTA 1000 Dongfeng Motor Wuhan Open, WTA 1000 Western & Southern Open, WTA 500 Rothesay International Eastbourne, and WTA 500 Dubai Duty Free Tennis Championships. She finished the season as the world’s No 8 and played at the WTA Year End Championships in Singapore, reaching the semi-finals.
In 2015, Caroline Wozniacki started strongly at the WTA 250 ASB Classic, reaching the final, but the next two tournaments were a total disaster, losing in the first round of the WTA 500 Sydney International and the second round of the Australian Open. However, she reached the semi-finals of the WTA 1000 Dubai Duty Free Tennis Championships and won the title at the WTA 250 BMW Malaysian Open. Caroline Wozniacki continue the season strongly and finished as runner-up at the WTA 500 Porsche Tennis Grand Prix in Stuttgart and reached the quarter-finals of the WTA 1000 Madrid Open, semi-finals of the WTA 500 Rothesay International Eastbourne, and the fourth round of Wimbledon. However, by the end of the season, she did not record some significant success and dropped in the WTA ranking to No 17.
Caroline Wozniacki started hesitantly the 2016 season, but in the end made a great achievement, reaching the semi-finals of the US Open and winning the title at the WTA 500 Toray Pan Pacific Open Tennis and WTA 250 Prudential Hong Kong Tennis Open. For a while, she dropped out of the Top 50, but finally ended the season as the world’s No 19.
In 2017, Caroline Wozniacki again returned in form and either not starting perfectly at the Australian Open and its heating tournaments, she was the runner-up as the WTA 500 Qatar TotalEnergies Open, WTA 1000 Dubai Duty Free Tennis Championships and WTA 1000 Miami Open, but also reached the quarter-finals of the WTA 1000 Indian Wells Open. In May, she reached the quarter-finals of the French Open / Roland Garros, while in June was the runner-up at the WTA 500 Rothesay International Eastbourne, before reaching the fourth round of Wimbledon. By the end of the season, Caroline Wozniacki won the title at the WTA 500 Toray Pan Pacific Open Tennis and finished as the runner-up at the WTA 1000 Canadian Open and WTA 250 Ericsson Open. She finished the season as the world’s No 3 and qualified for the WTA Year End Championships in Singapore and won it.
In 2018, Caroline Wozniacki continues with her perfect performance, reaching the final at the WTA 250 ASB Classic, before winning the Grand Slam title at the Australian Open. After winning her second Grand Slam title, she climbed again to the world’s number one in the WTA rankings, but only for four weeks. Caroline Wozniacki also reached the semi-finals of the WTA 1000 Qatar TotalEnergies Open and the fourth round of the French Open / Roland Garros, before winning the title at the WTA 500 Rothesay International Eastbourne. Caroline Wozniacki did not play well at the Wimbledon and WTA 1000 Canadian Open, failing to achieve some significant success, but in October won the title at the WTA 1000 China Open. She finished the season as the world’s No 3 and qualified again for the WTA Year End Championships in Singapore, but did not overcome the group stage.
Caroline Wozniacki started the 2019 season slowly, as during the Australian tour she reached the second round of the WTA 250 ASB Classic and third round of the Australian Open. During the season, her biggest achievements were the runner-up of the WTA 500 Credit One Charleston Open and the semi-finals of the WTA 1000 China Open. Caroline Wozniacki ended her season without winning a title for the first time since 2007. On December 6, 2019, she announced that she would retire from professional tennis after the 2020 Australian Open in January.
In 2020, Caroline Wozniacki started the season with the semi-finals at the WTA 250 ASB Classic and reached the third round of the Australian Open, before her retiring from professional tennis.
Caroline Wozniacki, however, returned to professional tennis in 2023. She competed at the WTA 1000 Canadian Open and WTA 1000 Western & Southern Open, reaching second and first round, respectively.