ITF World Champions

Roger Federer is a Swiss former professional tennis player. He was ranked as the world No. 1 in men's 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.

Rafael "Rafa" Nadal Parera, 1st Marquess of Llevant de Mallorca is a Spanish former professional tennis player. He was ranked as the world No. 1 in men's singles by the Association of Tennis Professionals (ATP) for 209 weeks, and finished as the year-end No. 1 five times. Nadal won 92 ATP Tour singles titles, with 22 major titles—including a record 14 French Open titles—as well as 36 Masters titles and an Olympic gold medal. Nadal is one of three men to complete the career Golden Slam in singles. His 81 consecutive wins on clay constitute the longest single-surface win streak in the Open Era.

Novak Djokovic is a Serbian professional tennis player. Djokovic has been ranked as the world No. 1 in men's singles by the Association of Tennis Professionals (ATP) for a record 428 weeks, finished as the year-end No. 1 a record eight times, and has been ranked No. 1 at least once in a year for a record 13 different years. He has won 101 ATP Tour–level singles titles, including a record 24 majors, a record 40 Masters, a record seven year-end championships, and an Olympic gold medal. Djokovic is the only man in tennis history to be the reigning champion of all four majors at once across three different surfaces. In singles, he is the only man to achieve a triple Career Grand Slam, and the only player to complete a Career Golden Masters, a feat he has accomplished twice. Djokovic is the only player in singles to have won all of the Big Titles over the course of his career.

American tennis player (1981)

American tennis player (born 1970)

Czech-American tennis player

German tennis player

American tennis player (born 1980)

British tennis player (born 1987)

Swiss tennis player

Russian tennis player and model

Swedish tennis player (born 1956)

American tennis player (born 1971)

German tennis player (born 1967)

American former tennis player (born 1959)

Belgian tennis player

German tennis player

Danish tennis player

Romanian female tennis player

American former tennis player (born 1954)

American tennis player (born 1982)

Belgian tennis player (born 1982)

Yugoslav and American tennis player

Indian tennis player

Jannik Sinner is an Italian professional tennis player. He is currently ranked world No.1 by Association of Tennis Professionals (ATP), including as the year-end No. 1 in 2024. Sinner has won 27 ATP Tour–level singles titles, including four majors, as well as eight Masters 1000 events and two ATP Finals titles. He also led Italy to back-to-back Davis Cup crowns in 2023 and 2024.

Czech tennis player

Spanish-Venezuelan tennis player

American tennis player (born 1952)

Serbian tennis player

American tennis player

Czech-American tennis player

Iga Natalia Świątek is a Polish professional tennis player. Currently ranked world No. 4 in women's singles by the WTA, she has held the world No. 1 ranking for a total of 125 weeks. Świątek has won 25 WTA Tour–level singles titles, including six major titles: four at the French Open, one at Wimbledon, and one at the US Open. She has also won the 2023 WTA Finals and eleven WTA 1000 titles. Świątek is the first Pole to win a major singles title.

Australian tennis player (born 1984)

Spanish tennis player

Swedish tennis player

Aryna Siarhiejeŭna Sabalenka is a Belarusian professional tennis player. She is the current world No. 1 in women's singles by the WTA and is a former No. 1 in doubles. Sabalenka has won 24 WTA Tour-level singles titles, including four majors – two each at the Australian Open and the US Open – as well as 11 WTA 1000 events. She has also won six doubles titles, including the 2019 US Open and 2021 Australian Open, both with Elise Mertens.

Australian tennis player and tennis coach

American tennis player

Australian tennis player

Swedish tennis player

Czech tennis player (1968–2017)

American tennis player

Italian tennis player

Russian tennis player

Brazilian tennis player

Italian tennis player

Indian tennis player

French and Serbian tennis player

Czech tennis player (born 1995)

Indian tennis player

Belarusian tennis player

French tennis player

Italian female tennis player

Zimbabwean tennis player

American tennis player

American tennis player

Argentine tennis player

American tennis player

American tennis player

Hungarian female tennis player