World Championship Tennis (WCT) was a tour for professional male tennis players established in 1968 and lasted until the emergence of the ATP Tour in 1990. A number of tennis tournaments around the world were affiliated with WCT and players were ranked in a special WCT ranking according to their results in those tournaments.
The racket sport traditionally named lawn tennis, invented in Edgbaston, Warwickshire, England, now commonly known simply as tennis, is the direct descendant of what is now denoted real tennis or royal tennis, which continues to be played today as a separate sport with more complex rules.
The Barcelona Ladies Open was a tennis tournament for women held in Barcelona in Catalonia (Spain) and was played on outdoor clay courts. It was an International-level tournament on the WTA Tour with total prize money of $220,000.
The Delray Beach WCT was a men's tennis tournament played in Delray Beach, Florida in the United States from 1982 to 1983. The event was part of the WCT Tour and was held on outdoor clay courts.
The Cacharel Caracas Open was a men's tennis tournament founded as the Altimira International, also known as the Altamira International Invitation and Caracas International Championships. The tournament was played annually at the Altamira Tennis Club, Miranda, Caracas, Venezuela usually in mid-March initially as part of the ILTF Caribbean Circuit.
The 1974 WCT World Doubles, also known by its sponsored name Rothman's World Doubles Championship, was a men's tennis tournament played on indoor carpet courts at the Maurice Richard Arena in Montreal, Canada that was part of the 1974 World Championship Tennis circuit. It was the tour finals for the doubles season of the WCT Tour and featured the eight top-ranking teams. It was the second edition of the tournament and was held from May 2 through May 5, 1974. The South African team of Bob Hewitt and Frew McMillan won the title and earned $40,000 first-prize money.
The 1976 WCT World Doubles was a men's tennis tournament played on indoor carpet courts at the Municipal Auditorium in Kansas City, Missouri in the United States that was part of the 1976 World Championship Tennis circuit. It was the tour finals for the doubles season of the WCT Tour. It was the fourth edition of the tournament and was held from April 28 through May 2, 1976. Wojciech Fibak and Karl Meiler won the title and earned $40,000.
The 1979 WCT World Doubles, also known by its sponsored name Braniff Airways World Doubles Championship, was a men's tennis tournament played on indoor carpet courts at Olympia in London, England that was part of the 1979 Colgate-Palmolive Grand Prix. It was the tour finals for the doubles season of the WCT Tour section. The tournament was held from January 3 through January 7, 1979.
The 1984 WCT World Doubles, also known by its sponsored name Barratt World Doubles Championship, was a men's tennis tournament played on indoor carpet courts at Royal Albert Hall in London, United Kingdom that was part of the 1984 World Championship Tennis circuit. It was the tour finals for the doubles season of the WCT Tour section. The tournament was held from January 3 through January 8, 1984.
The Open Era is the current era of professional tennis. It began in 1968 when the Grand Slam tournaments allowed professional players to compete with amateurs, ending the division that had persisted since the dawn of the sport in the 19th century. The first open tournament was the 1968 British Hard Court Championships held in April, followed by the inaugural open Grand Slam tournament, the 1968 French Open, a month later. Unless otherwise sourced, all records are based on data from the Association of Tennis Professionals (ATP), the International Tennis Federation (ITF), and the official websites of the four Grand Slam tournaments. All rankings-related records are based on ATP rankings, which began in 1973. The names of active players appear in boldface.
The 1978 Monte Carlo Open was a men's tennis tournament played on outdoor clay courts at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France. The tournament was part of the WCT Tour, which was incorporated into the 1978 Colgate-Palmolive Grand Prix circuit. It was the 72nd edition of the event and was held from 10 April through 16 April 1978. Raúl Ramírez, the no. 5 seed, won the singles title.
The 1981 Monterrey WCT was a men's tennis tournament played on indoor carpet courts in Monterrey, Mexico. The event was part of the WCT Tour which was incorporated into the 1981 Volvo Grand Prix circuit. It was the third edition of the tournament and was held from January 19 through January 25, 1981. Fourth-seeded Johan Kriek won the singles title.
The 1976 Monte Carlo WCT was a combined men's and women's tennis tournament played on outdoor clay courts at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France. The men's tournament was part of the World Championship Tennis (WCT) tour. It was the 71st edition of the event and was held from 13 April through 20 April 1976. Guillermo Vilas and Helga Masthoff won the singles titles.
The 1979 Richmond WCT, also known by its sponsored name United Virginia Bank Classic, was a men's tennis tournament played on indoor carpet courts in Richmond, Virginia in the United States. The event was part WCT Tour which was incorporated into the 1979 Colgate-Palmolive Grand Prix circuit. It was the 14th edition of the tournament and was held from January 29 through February 4, 1979. First-seeded Björn Borg won the singles title.
The 1973 Holton Tennis Classic, also known as the St. Louis WCT, was a men's professional tennis tournament that was part of Group A of the 1973 World Championship Tennis circuit. It was held on indoor carpet courts at the Kiel Auditorium in St. Louis, Missouri in the United States. It was the third edition of the tournament and was held from March 26 through April 1, 1973. Second-seeded Stan Smith won the singles title and earned $10,000 first-prize money.
The 1974 Holton Tennis Classic, also known as the St. Louis WCT, was a men's professional tennis tournament that was part of the blue Group of the 1974 World Championship Tennis circuit. It was held on indoor carpet courts at the Kiel Auditorium in St. Louis, Missouri in the United States. It was the fourth edition of the tournament and was held from April 22 through April 28, 1974. Second-seeded Stan Smith won his second consecutive singles title at the event and earned $10,000 first-prize money.
The 1975 St. Louis Tennis Classic, also known as the St. Louis WCT, was a men's professional tennis tournament that was part of the Blue Group of the 1975 World Championship Tennis circuit. It was played on indoor carpet courts at the Kiel Auditorium in St. Louis, Missouri in the United States. It was the fifth edition of the tournament and was held from April 7 through April 13, 1975. Fourth-seeded Vitas Gerulaitis won the singles title and earned $12,000 first-prize money.
The 1976 St. Louis Tennis Classic, also known as the St. Louis WCT, was a men's professional tennis tournament that was part of the Blue Group of the 1976 World Championship Tennis circuit. It was played on indoor carpet courts at the Kiel Auditorium in St. Louis, Missouri in the United States. It was the sixth edition of the tournament and was held from February 17 through February 22, 1976. First-seeded Guillermo Vilas won the singles title and earned $17,000 first-prize money.
The 1977 St. Louis Tennis Classic, also known as the St. Louis WCT, was a men's professional tennis tournament that was part of the 1977 World Championship Tennis circuit. It was played on indoor carpet courts at The Arena in St. Louis, Missouri in the United States. It was the seventh edition of the tournament and was held from March 16 through March 20, 1977. First-seeded Jimmy Connors won the singles title and earned $30,000 first-prize money.
The 1978 St. Louis Tennis Classic, also known as the St. Louis WCT, was a men's professional tennis tournament that was part of the World Championship Tennis series of tournaments that were incorporated into the 1978 Grand Prix circuit. It was played on indoor carpet courts at the Checkerdome in St. Louis, Missouri in the United States. It was the eighth and last edition of the tournament and was held from February 6 through February 12, 1978. Unseeded Sandy Mayer won the singles title and earned $30,000 first-prize money.
Rod Laver 
Nikola Pilić 
Stan Smith 
Alex Metreveli 
Guillermo Vilas 
Vijay Amritraj 
Andrés Gimeno 
Ove Nils Bengtson 
Ismail El Shafei 
Brian Fairlie 
Raúl Ramírez 
Ilie Năstase 
Adriano Panatta 
Bob Hewitt 
Wojciech Fibak 
Tom Okker