Lleyton Glynn Hewitt is an Australian former world No. 1 tennis player. He is the most recent Australian man to win a major singles title,at the 2001 US Open and 2002 Wimbledon Championships. In November 2001,Hewitt became,at the time,the youngest man to reach No. 1 in the ATP singles rankings,at the age of 20 years,8 months and 26 days. In total,he won 30 singles titles and 3 doubles titles,including the 2000 US Open men's doubles title,back-to-back Tour Finals titles in 2001 and 2002,and the Davis Cup with Australia in 1999 and 2003. Between 1997 and 2016,Hewitt contested a record twenty consecutive Australian Open men's singles tournaments,his best result being runner-up in 2005. He was also the runner-up at the 2004 US Open.
The Australian Open is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne,Victoria,Australia. It is chronologically the first of the four Grand Slam tennis events every year,held before the French Open,Wimbledon and the US Open.
Serena Jameka Williams is an American former professional tennis player. Widely regarded as one of the greatest tennis players of all time,she was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 319 weeks,including a joint-record 186 consecutive weeks,and finished as the year-end No. 1 five times. Williams won 73 WTA Tour-level singles titles,including 23 major women's singles titles —the most in the Open Era,and the second-most of all time. She is the only player to accomplish a career Golden Slam in both singles and doubles.
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 championships consecutively but not within the same calendar year is referred to as a "non-calendar-year Grand Slam",while winning the four majors at any point during the course of a career is known as a "Career Grand Slam".
Margaret Court,also known as Margaret Smith Court,is an Australian former world number 1 tennis player and a Christian minister. Considered one of the greatest tennis players of all time,her 24 women's singles major titles and total of 64 major titles are the most in tennis history.
Roger Federer is a Swiss former professional tennis player. He was ranked world No. 1 in singles by the Association of Tennis Professionals (ATP) for 310 weeks,including a record 237 consecutive weeks,and finished as the year-end No. 1 five times. Federer won 103 singles titles on the ATP Tour,the second most since the start of the Open Era in 1968,including 20 major men's singles titles and six year-end championships.
Kim Antonie Lode Clijsters 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 doubles for 4 weeks,having held both rankings simultaneously in 2003. She won 41 singles titles and 11 doubles titles on the WTA Tour,including four singles majors and two doubles majors,as well as three singles titles at the Tour Finals.
Mariana Simionescu is a retired tennis player from Romania.
Dylan Martin Alcott,is an Australian former wheelchair tennis player,former wheelchair basketball player,radio host,actor,foundation founder,business owner and motivational speaker. Alcott was a member of the Australia men's national wheelchair basketball team,known colloquially as the Australian "Rollers". At the age of 17,he became the youngest Rollers gold medal winner,at the 2008 Beijing Paralympics,and was the youngest to compete in the wheelchair basketball competition. In 2014,he returned to wheelchair tennis with the aim of participating at the 2016 Rio Paralympics,at which he won gold medals in the Men's Quad Singles and Doubles. He was named the 2016 Australian Paralympian of the Year due to his outstanding achievements at Rio.
Simona Halep is a Romanian professional tennis player. She has been ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA),having held the position for a total of 64 weeks. Halep has won 24 WTA Tour-level singles titles,including two majors at the 2018 French Open and the 2019 Wimbledon Championships.
Daria Saville is an Australian professional tennis player who previously represented Russia until 2015. She competed under her maiden name until her marriage to Luke Saville in 2021. On 28 August 2017,she reached her best singles ranking of world No. 20. On 25 September 2017,she peaked at No. 45 in the doubles rankings.
Ons Jabeur is a Tunisian professional tennis player. She has a career-high ranking by the Women's Tennis Association (WTA) of world No. 2,achieved on 27 June 2022,making her the highest-ranked African and Arab tennis player in WTA and ATP rankings history. Jabeur has won five singles titles on the WTA Tour,including a WTA 1000 event at the 2022 Madrid Open,and has been runner-up at three majors. She is the first African and Arab woman to contest a major singles final.
Jocelyn Robichaud is a former tour professional tennis player. Robichaud captured three junior Grand Slam titles and played Davis Cup for Canada. More of a doubles specialist,he won three Challenger events in doubles and reached a career-high ATP doubles ranking of World No. 119.
Ashleigh Jacinta Barty is an Australian former professional tennis player and cricketer. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 121 weeks,and was ranked world No. 5 in doubles. Barty won 15 WTA Tour-level singles titles,including three majors at the 2019 French Open,2021 Wimbledon Championships,and 2022 Australian Open,as well as the 2019 WTA Finals. She also won 12 doubles titles,including a major at the 2018 US Open with CoCo Vandeweghe.
Leander Adrian Paes is an Indian former professional tennis player and the 1st Asian man to be inducted into the International Tennis Hall of Fame. He is regarded as one of the greatest doubles tennis players of all-time and holds the record for the most doubles wins in the Davis Cup. Paes won eight men's doubles and ten mixed doubles Grand Slam titles. He holds a career Grand Slam in men's doubles and mixed doubles making him one of only three men in the Open era to achieve this distinction and won the rare men's/mixed double at the 1999 Wimbledon Championships. Paes,together with Mahesh Bhupathi,were the first pair in Open era history to reach the men's doubles finals of all 4 Grand Slams in the same calendar year (1999).
Aryna Siarhiejeŭna Sabalenka 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. Sabalenka has won 18 WTA Tour-level singles titles,including three majors at the 2023 Australian Open,2024 Australian Open,and 2024 US Open. She has also won six doubles titles,including two majors,both partnering Elise Mertens.
Katherine Sebov is a Canadian professional tennis player. She reached a career-high WTA singles ranking of No. 136,on 10 April 2023. Sebov has a career-high combined ITF junior ranking of No. 22,achieved on 20 July 2015.
Cori Dionne "Coco" Gauff is an American professional tennis player. Gauff has career-high WTA rankings of world No. 2 in singles and of world No. 1 in doubles. She has won nine WTA Tour-level singles titles,including the 2023 US Open and 2024 WTA Finals,and nine doubles titles,including the 2024 French Open.
Diede de Groot is a Dutch professional wheelchair tennis player who is the current world No. 1 in both singles and doubles.
Clara Tauson won the girls' singles tennis title at the 2019 Australian Open,defeating Leylah Fernandez in the final,6–4,6–3.
Northern Mariana Islands 
Pacific Oceania (Fed Cup tournaments)
