Clark Graebner is a retired American professional tennis player.
Stan Smith defeated Jan Kodeš in the final, 3–6, 6–3, 6–2, 7–6(5–3) to win the men's singles tennis title at the 1971 US Open. It was his first major singles title.
Ken Rosewall defeated Tony Roche in the final, 2–6, 6–4, 7–6(5–2), 6–3 to win the men's singles tennis title at the 1970 US Open. It was his second US Open singles title and seventh Grand Slam tournament singles title overall.
Unseeded Fred Stolle defeated John Newcombe 4–6, 12–10, 6–3, 6–4 in the final to win the men's singles tennis title at the 1966 U.S. National Championships.
The 1971 Masters was a men's tennis tournament played on indoor carpet courts at the Coubertin Stadium in Paris, France. It was the 2nd edition of the Masters Grand Prix and was the season-ending event of the 1971 Grand Prix circuit. The tournament consisted of a round robin competition for the seven highest points scorers of the Grand Prix circuit. John Newcombe and Ken Rosewall, players signed to the rival World Championship Circuit but who also took part in several Grand Prix tournaments, had qualified for the event but declined to participate. The tournament was held from 4 December until 12 December 1971 and was won by Ilie Năstase who earned the $15,000 first prize.
The 1972 Commercial Union Assurance Grand Prix was a professional tennis circuit held that year and organized by the International Lawn Tennis Federation (ILTF). It consisted of 33 Grand Prix tournaments in different categories including three of the four Grand Slam tournaments and was followed by a season-ending Masters tournament. The circuit ran from February through November.
The 1971 Pepsi Cola Grand Prix was a professional tennis circuit held that year. It incorporated three of the four Grand Slam tournaments, the Grand Prix tournaments. It was the second edition of the Grand Prix circuit and was run by the International Lawn Tennis Federation (ITLF). In addition to regular tournament prize money a bonus prize money pool of £60,000 ($150,000) was available to be divided among the 20 highest ranking players after the last tournament. To be eligible for a share of the bonus pool a player had to compete in a minimum of nine tournaments. The circuit culminated in a Masters event in Paris for the seven highest point scoring players. Stan Smith was the winner of the circuit with 187 ranking points and four tournament victories.
The 1970 Pepsi-Cola ILTF Grand Prix was a tennis circuit administered by the International Lawn Tennis Federation (ILTF) which served as a forerunner to the current Association of Tennis Professionals (ATP) World Tour and the Women's Tennis Association (WTA) Tour. It was the inaugural edition of the Grand Prix circuit and consisted of men's tournaments recognised by the ILTF. The creation of the Grand Prix circuit, on an experimental basis during its first year, was announced in April 1970 by the president of the ILTF, Ben Barnett. It was the brainchild of Jack Kramer, former tennis promoter and winner of the Wimbledon and US championships, and was aimed at countering the influence of commercial promoters, particularly Lamar Hunt and his World Championship Tennis circuit and George MacCall's National Tennis League.
The 1970 U.S. Clay Court Championships was a combined men's and women's tennis tournament that was part of the Grand Prix. It was held at the Woodstock Country Club in Indianapolis, Indiana in the United States and played on outdoor clay courts. It was the 2nd edition of the tournament in the Open Era and was held in from 27 July through 2 August. Cliff Richey and Linda Tuero won the singles titles.
The 1972 Rothmans International Tennis Tournament was a men's professional tennis tournament held on indoor carpet courts in the Royal Albert Hall in London, England. It was the third edition of the tournament and was held from 18 to 22 January 1972. It was part of the 1972 USLTA Indoor Circuit. Cliff Richey won the singles title and $6,960 in prize money after defeating Clark Graebner in a three-hour-and-six-minute final.
The 1971 U.S. Clay Court Championships was a combined men's and women's tennis tournament that was part of the 1971 Grand Prix circuit and categorized as a Group B event. The event was held in Indianapolis, USA and played on outdoor clay courts. It was the 3rd edition of the tournament in the Open Era and was held in from August 16 through August 22, 1971. Željko Franulović and Billie Jean King won the singles titles.
The 1973 U.S. National Indoor Tennis Championships was a men's tennis tournament held at the Wicomico Youth and Civic Center in Salisbury, Maryland in the United States. The event was part of the 1973 USLTA Indoor Circuit. It was the third edition of the tournament and was held from February 19 through February 24, 1994, and played on indoor carpet courts. First-seeded Jimmy Connors won the singles title and $9,000 first-prize money.
The 1972 U.S. National Indoor Tennis Championships was a men's tennis tournament held at the Wicomico Youth and Civic Center in Salisbury, Maryland in the United States. The event was part of the 1972 USLTA Indoor Circuit and was also a Grade B event on the 1972 Grand Prix Circuit. It was the second edition of the tournament and was held from February 13 through February 20, 1972, and played on indoor hard courts. First-seeded national Stan Smith won the singles title and $9,000 first-prize money as well as 50 Grand Prix ranking points. It was his second singles title at the event after 1969.
The 1974 U.S. National Indoor Tennis Championships was a men's tennis tournament held at the Wicomico Youth and Civic Center in Salisbury, Maryland in the United States. The event was part of the 1974 USLTA Indoor Circuit. The tournament was held from February 18 through February 24, 1974, and played on indoor carpet courts. Second-seeded Jimmy Connors won the singles title and earned $9,000 first-prize money.
The 1975 U.S. National Indoor Tennis Championships was a men's tennis tournament held at the Wicomico Youth and Civic Center in Salisbury, Maryland. The event was part of the 1975 USLTA-IPA Indoor Circuit. It was the fifth edition of the tournament and was held from February 10 through February 16, 1975, and played on indoor carpet courts. Second-seeded Jimmy Connors won the singles title and earned $9,000 first-prize money.
The 1972 Equity Funding International, also known as the Washington Indoor, was a men's tennis tournament played on indoor carpet courts at Georgetown University's McDonough Gymnasium in Washington D.C. in the United States that was part of Group C of the 1972 Grand Prix circuit as well as of the 1972 USLTA Indoor Circuit. It was the inaugural edition of the tournament and was held from March 6 through March 12, 1972. First-seeded Stan Smith won the singles title and earned $5,000 first-prize money.
The 1976 U.S. National Indoor Open Championships was a men's tennis tournament held at the Wicomico Youth and Civic Center in Salisbury, Maryland in the United States. The event was part of the 1976 USLTA-IPA Indoor Circuit. It was the sixth edition of the tournament and was held from February 14 through February 22, 1976, and played on indoor carpet courts. Second-seeded Ilie Năstase won the singles title and earned $9,000 first-prize money.
The 1971 National Indoor Championships, also known as the Hampton Indoor, was a men's tennis tournament played on indoor carpet courts at the Hampton Roads Coliseum in Hampton, Virginia in the United States that was part of the 1971 USLTA Indoor Circuit. It was the second edition of the tournament and was held from March 1 through March 7, 1971. First-seeded Ilie Năstase won the singles title and earned $10,000 first-prize money.
The 1971 Midlands International, also known as the Omaha International, was a men's tennis tournament played on indoor carpet courts at the City Auditorium in Omaha, Nebraska, in the United States that was part of the 1971 USLTA Indoor Circuit. It was the third edition of the event and was held from January 25 through January 31, 1971. The event was sponsored by the Junior League of Omaha. First-seeded Ilie Năstase won the singles title and earned $3,000 first-prize money.
The 1971 Macon International was a men's tennis tournament played on indoor carpet courts at the Macon Coliseum in Macon, Georgia, in the United States that was part of the 1971 USLTA Indoor Circuit. It was the fourth edition of the event and was held from February 23 through February 28, 1971. Second-seeded foreign player Željko Franulović won the singles title and earned $3,000 first-prize money.
Clark Graebner [1] 
Juan Gisbert, Sr. / 