Pete Sampras is an American former world No. 1 tennis player of Greek descent. His professional career began in 1988 and ended at the 2002 US Open, which he won, defeating his longtime rival Andre Agassi in the final. Sampras won 14 major singles titles during his career, which was an all-time record at the time of his retirement: a then-record seven Wimbledon titles, two Australian Opens and a joint Open Era record five US Open titles. He won 64 ATP Tour-level singles titles in total. He first reached the world No. 1 ranking in 1993, and held that position for a total of 286 weeks, including an Open Era record of six consecutive year-end No. 1 rankings from 1993 to 1998. His precise and powerful serve earned him the nickname "Pistol Pete". In 2007, he was inducted into the International Tennis Hall of Fame.
Rodney George Laver is an Australian former tennis player. Laver was ranked the world number 1 professional player indisputably for five years from 1965 to 1969 and by some sources also in 1964 and 1970. He was also ranked as the number 1 amateur in 1961 and 1962. Laver won 198 singles titles which is the most won by a player in history.
Frederick John Perry was a British tennis and table tennis player and former world No. 1 from England who won 10 Majors including eight Grand Slam tournaments and two Pro Slams single titles, as well as six Major doubles titles. Perry won three consecutive Wimbledon Championships from 1934 to 1936 and was World Amateur number one tennis player during those three years. Prior to Andy Murray in 2013, Perry was the last British player to win the men's Wimbledon championship, in 1936, and the last British player to win a men's singles Grand Slam title, until Andy Murray won the 2012 US Open.
Ivan Lendl is a Czech-American former professional tennis player. He is widely regarded as one of the greatest tennis players of all time. Lendl was ranked world No. 1 in singles for a then-record 270 weeks and won 94 singles titles. He won eight major singles titles and was runner-up 11 times, making him the first man to contest 19 major finals. Lendl also contested a record eight consecutive US Open finals, and won five year-end championships. Lendl is the only man in professional tennis history to have a match winning percentage of over 90% in five different years. He also had a comfortable head-to-head winning record against his biggest rivals, which translates to a 22–13 record against Jimmy Connors and a 21–15 record against John McEnroe. Lendl's dominance of his era was the most evident at the year-end championships, which feature the eight best-ranked singles players. He holds a win–loss record at the event of 39–10, having contested the final nine consecutive times, a record. Commonly referred to as the 'Father Of Modern Tennis' and 'The Father Of The Inside-Out Forehand', Lendl pioneered a new style of tennis; his game was built around his forehand, hit hard and with a heavy topspin, and his success is cited as a primary influence in popularizing the now-common playing style of aggressive baseline power tennis. After retirement, he became a tennis coach for several players; in particular, he helped Andy Murray win three major titles and reach the world No. 1 ranking.
Kenneth Robert Rosewall is an Australian former world top-ranking professional tennis player. Rosewall won 147 singles titles, including a record 15 Pro Majors and 8 Grand Slam titles for a total 23 titles at pro and amateur majors. He also won 15 Pro Majors in doubles and 9 Grand Slam doubles titles. Rosewall achieved a Pro Slam in singles in 1963 by winning the three Pro Majors in one year and he completed the Career Grand Slam in doubles.
Ricardo Alonso "Pancho" González, known sometimes as Richard Gonzales, was an American tennis player. He won 15 major singles titles, including two U.S. National Singles Championships in 1948 and 1949, and 13 Professional Grand Slam titles. He also won three Tournament of Champions professional events in 1957, 1958, and 1959. He was ranked world amateur No. 1 in 1948 by Ned Potter and in 1949 by Potter and John Olliff.
John Albert Kramer was an American tennis player of the 1940s and 1950s, and a pioneer promoter who helped drive the sport towards professionalism at the elite level. Kramer also ushered in the serve-and-volley era in tennis, a playing style with which he won three Grand Slam tournaments. He also led the U.S. Davis Cup tennis team to victory in the 1946 and 1947 Davis Cup finals.
Henry Ellsworth Vines Jr. was an American tennis champion of the 1930s, the World No. 1 player or the co-No. 1 in 1932 as an amateur, and in 1934, 1935, 1936 and 1937 as a professional. He won three Grand Slam titles, the U.S. National Championships in 1931 and 1932 and the Wimbledon Championships in 1932. Vines also was able to win Pro Slam titles on three different surfaces. He later became a professional golfer and reached the semifinals of the PGA Championship in 1951.
William Tatem Tilden II, nicknamed "Big Bill", was an American tennis player. Tilden was the world No. 1 amateur for six consecutive years, from 1920 to 1925, and was ranked as the world No. 1 professional by Ray Bowers in 1931 and 1932 and Ellsworth Vines in 1933. He won 14 Major singles titles, including 10 Grand Slam events, one World Hard Court Championships and three professional majors. He was the first American man to win Wimbledon, taking the title in 1920. He also won a joint-record seven U.S. Championships titles.
Marion Anthony Trabert was an American amateur world No. 1 tennis champion and long-time tennis author, TV commentator, instructor, and motivational speaker.
Vincent Spadea is a former professional tennis player from the United States.
Wayne Richard Ferreira is a South African former professional tennis player and current tennis coach.
Frederick Rudolph "Ted" Schroeder was an American tennis player who won the two most prestigious amateur tennis titles, Wimbledon and the U.S. National. He was the No. 1-ranked American amateur player in 1942; the No. 2 for 4 consecutive years, 1946 through 1949, and the latter year saw Schroeder ranked World No. 1 amateur by Pierre Gillou. He was born in Newark, New Jersey, but developed as a tennis player in Southern California under the guidance of Perry T. Jones.
Justin Jeremy Gimelstob is a retired American tennis player. Gimelstob has been a resident of Morristown, New Jersey, and as of 2009 lived in Santa Monica, California.
Robert Van't Hof is a former professional tennis player from the United States.
Andrea Gaudenzi is an Italian former tennis player and the current chairman of the Association of Tennis Professionals (ATP) since January 2020.
Jeff "Salzy" Salzenstein is an American left-handed former professional tennis player. In 1986 he won the US Boys' 12 National Hard Court Tennis Singles Championship and Doubles Championship. His highest singles ranking was world No. 100 in June 2004, when he became the oldest American to break into the top 100 in men's tennis, at 30 years of age. His career-high in doubles was No. 68 in November 1997.
Scott Lipsky is an American former professional tennis player and coach. As a player, Lipsky was primarily a doubles specialist.
Robert Larimore Riggs was an American tennis champion who was the world No. 1 amateur in 1939 and world No. 1 professional in 1946 and 1947. He played his first professional tennis match on December 26, 1941.
Michael Sell is a former professional tennis player from the United States. He was the co-head coach of the women’s tennis team at Louisiana State University with Julia Sell from 2015 to April 2022.
United States 
