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.
John David Newcombe AO OBE is an Australian former professional tennis player. He is one of the few men to have attained a world No. 1 ranking in both singles and doubles. At the majors, he won seven singles titles, a former record 17 men's doubles titles, and two mixed doubles titles. He also contributed to five Davis Cup titles for Australia during an age when the Davis Cup was deemed as significant as the majors. Tennis magazine rated him the 10th best male player of the period 1965–2005.
Roger Taylor MBE is a British former tennis player. Born in Sheffield, West Riding of Yorkshire. He achieved success at several Grand Slam tournaments, reaching the quarter-finals of the French Open in 1973, the semi-finals of Wimbledon during the same year and winning back to back US Open men's doubles titles in 1971 and 1972. He also enjoyed particular success in 1970, again reaching the semi-finals of Wimbledon, where he achieved a big upset win over defending champion Rod Laver en route, and the semi-finals of the Australian Open. Taylor also reached the semi-finals at Wimbledon in 1967. His career-high ranking was world No. 7 in 1967, though Taylor was also ranked world No. 8 in 1970 before the ATP rankings began.
Anthony Dalton Roche AO MBE is an Australian former professional tennis player.
Ramanathan Krishnan is a retired tennis player from India who was among the world's leading players in the 1950s and 1960s. He was twice a semifinalist at Wimbledon in 1960 and 1961, reaching as high as World No. 3 in Potter's amateur rankings. He led India to the Challenge Round of the 1966 Davis Cup against Australia and was the non playing captain when Vijay Amritraj and Anand Amritraj led India into the 1974 Davis Cup finals against South Africa. He was active from 1953 to 1975 and won 69 singles titles.
Paul McNamee is an Australian former doubles world No. 1 tennis player and prominent sports administrator.
Jonas Lars Björkman is a Swedish former professional tennis player. He is a former world No. 1 in doubles, and also a former world No. 4 in singles. Björkman retired from professional tennis after competing at the 2008 Tennis Masters Cup doubles championships. As of 2019, he was ranked in the top 40 on the all-time ATP prize money list with over $14.5 million. As of July 2024 he is still in the top 50 of the all-time ATP prize money list.
William Bowrey is a former Australian tennis player. He was ranked world No. 8 in 1967.
Jonathan Stark is a former professional tennis player from the United States. During his career he won two Grand Slam doubles titles. Stark reached the world No. 1 doubles ranking in 1994.
Kenneth Norman Fletcher was an Australian tennis player who won numerous doubles and mixed doubles Grand Slam titles.
Jan Leschly is a Danish businessman and former professional tennis player. He was a semi finalist in the men's singles at the 1967 U.S. National Championships, and a quarter finalist in doubles at the1966 Wimbledon Championships. Between 1957 and 1973 he won 18 career titles in singles.
Marty Riessen is an American former amateur and professional tennis player active from the 1960s to the 1980s. He was ranked as high as No. 11 in the world in singles on the ATP rankings in September 1974, though was ranked as high as world No. 8 by Lance Tingay of The Daily Telegraph in 1971 before the computer rankings. Renowned for his doubles play, Riessen was also a regular doubles partner of Australian tennis great Margaret Court, winning six of his seven major mixed titles and a career Grand Slam alongside her. Additionally a winner of two men's doubles Grand Slams, his highest doubles ranking was No. 3 in March 1980.
Wilhelm Paul Bungert is a former German tennis player best known for reaching the 1967 Wimbledon final. He participated in the 1970 Davis Cup final as a player and in the 1985 Davis Cup final as team captain.
Owen Keir Davidson was an Australian professional tennis player of the 1960s and 1970s.
Samuel Groth OLY, MP is an Australian politician and a former professional tennis player. Sitting as a member of the Victorian Legislative Assembly, Groth represents the Liberal Party in the seat of Nepean. He is also the Shadow Minister for Youth and Shadow Minister for Tourism, Sport and Events since December 2022.
John Edward Barrett, is a former tennis player, television commentator and author. He was born in Mill Hill, North West London, the son of Alfred Edward Barrett, a leaf tobacco merchant, and Margaret Helen Barrett. He had one sister, Irene Margaret Leppington (1925–2009), a research chemist. His father had the rare distinction of having played both for Leicester Tigers RFC as a wing three-quarter and for Leicester Fosse FC as a wing half.
The 2012 ATP World Tour is the global elite professional tennis circuit organized by the Association of Tennis Professionals (ATP) for the 2012 tennis season. The 2012 ATP World Tour calendar comprises the Grand Slam tournaments, the ATP World Tour Masters 1000, the ATP World Tour 500 series, the ATP World Tour 250 series, the ATP World Team Championship, the Davis Cup, the ATP World Tour Finals, and the tennis event at the London Summer Olympic Games. Also included in the 2012 calendar is the Hopman Cup, which is organized by the ITF and does not distribute ranking points.
Vladimir Viktorovich Korotkov is a retired Soviet tennis player who won three Junior Grand Slam tournaments, Wimbledon Boys Singles in 1965, 1966 and the French Juniors in 1966. He also won the mixed doubles at the 1968 Summer Olympics where tennis was a "demonstration sport". He won the men's doubles event at the 1973 Summer Universiade and the 1977 USSR singles championship. From 1981 until his retirement in 1996, Korotkov was coaching at several sports clubs.
The 2014 ATP World Tour was the global elite men's professional tennis circuit organized by the Association of Tennis Professionals (ATP) for the 2014 tennis season. The 2014 ATP World Tour calendar comprises the Grand Slam tournaments, the ATP World Tour Masters 1000, the ATP World Tour 500 series, the ATP World Tour 250 series, the Davis Cup and the ATP World Tour Finals. Also included in the 2014 calendar is the Hopman Cup, which is organized by the ITF and does not distribute ranking points.
The 2021 ATP Tour was the global elite men's professional tennis circuit organised by the Association of Tennis Professionals (ATP) for the 2021 tennis season. The 2021 ATP Tour calendar comprised the Grand Slam tournaments, the ATP Finals, the ATP Masters 1000, the ATP Cup, the ATP 500 series and the ATP 250 series. Also included in the 2021 calendar were the Davis Cup, the Summer Olympics in Tokyo, Next Gen ATP Finals, Laver Cup, none of which distributed ranking points.
Australia 
Italy (1968-1975)