The 1980 Bavarian Tennis Championships was a men's Grand Prix tennis circuit tournament played on outdoor clay courts at the MTTC Iphitos in Munich, West Germany. It was the 64th edition of the tournament and was held from 20 May through 25 May 1980. Rolf Gehring won the singles title.
The 1978 Paris Open, also known as the French Indoor Championships, was a Grand Prix men's tennis tournament played on indoor carpet courts. It was the 9th edition of the Paris Open. It took place at the Palais omnisports de Paris-Bercy in Paris, France from 30 October through 5 November 1978. Bob Lutz won the singles title.
The 1980 Fischer-Grand Prix was a men's tennis tournament played on indoor hard courts at the Wiener Stadthalle in Vienna, Austria that was part of the 1980 Volvo Grand Prix. It was the sixth edition of the tournament and was held from 20 October until 26 October 1980. First-seeded Brian Gottfried won the singles title, his second at the event after 1977.
The 1981 ATP Championships, also known as the Cincinnati Open, was a tennis tournament played on outdoor hard courts at the Lindner Family Tennis Center in Mason, Ohio in the United States that was part of the 1981 Volvo Grand Prix. The tournament was held from August 17 through August 23, 1981. First-seeded John McEnroe won the singles title.
The 1970 Pacific Coast International Open was a tennis tournament played on outdoor hard courts at the Berkeley Tennis Club in Berkeley, California in the United States and was part of the Grand Prix tennis circuit. It was the 82nd edition of the tournament and ran from September 28 through October 4, 1970. Arthur Ashe won the singles title.
The 1980 South African Open was a men's tennis tournament played on outdoor hard courts in Johannesburg, South Africa that was part of the 1980 Volvo Grand Prix. It was the 77th edition of the tournament and was held from 25 November through 1 December 1980. Seventh-seeded Kim Warwick won the singles title.
The 1980 Swiss Indoors, also known as the European Open Indoor Championships, was a men's tennis tournament played on indoor hard courts that was part of the 1980 Volvo Grand Prix. It was the 11th edition of the tournament and was played in Basel, Switzerland from 13 October through 19 October 1980. Second-seeded Ivan Lendl won the singles title.
The 1977 U.S. Pro Tennis Championships was a men's tennis tournament played on outdoor green clay courts (Har-Tru) at the Longwood Cricket Club in Chestnut Hill, Massachusetts in the United States. The event was categorized as a 4 Star tournament and was part of the 1977 Grand Prix circuit. It was the 50th edition of the tournament and was held from August 22 through August 30, 1977. Third-seeded Manuel Orantes won the singles title and the accompanying $32,000 first-prize money as well as 125 Grand Prix ranking points. First-seeded Jimmy Connors withdrew after the quarterfinals due to a back injury.
The 1980 Alan King Tennis Classic, also known as the Alan King-Ceasers Palace Tennis Classic, was a men's tennis tournament played on outdoor hard courts at the Caesars Palace in Las Vegas, United States. It was the ninth edition of the event and was part of the 1980 Volvo Grand Prix circuit. The tournament was held from April 21 through April 27, 1980. First-seeded Björn Borg won the singles title and the accompanying $60,000 first-prize money. It was Borg's second successive singles title at the tournament.
The 1980 Australian Hard Court Tennis Championships was a men's tennis tournament that was part of the 1980 Grand Prix tennis circuit. It was the 36th edition of the event and was held in Hobart, Australia from 31 December 1979 until 6 January 1980 and played on outdoor hardcourts. Unseeded Shlomo Glickstein won the singles title.
The 1977 U.S. National Indoor Championships was a men's tennis tournament played on indoor hard courts at the Racquet Club of Memphis in Memphis, Tennessee in the United States that was part of the 1977 Colgate-Palmolive Grand Prix. It was the eighth edition of the tournament was held from February 28 through March 6, 1977. First-seeded Björn Borg won the singles title and $24,500 first-prize money.
The 1979 United Bank Classic, also known as the Denver WCT, was a men's tennis tournament played on indoor carpet courts in Denver, Colorado in the United States that was part of the 1979 Grand Prix circuit. It was the eighth edition of the tournament and took place from February 19 through February 25, 1979. Sixth-seeded Wojciech Fibak won the singles competition.
The 1980 Stowe Grand Prix was a men's tennis tournament played on outdoor hard courts at the Topnotch Inn in Stowe, Vermont in the United States that was part of the 1980 Grand Prix circuit. It was the third edition of the tournament and was held from August 11 through August 17, 1980. Unseeded Bob Lutz won the singles title.
The 1981 Stowe Grand Prix was a men's tennis tournament played on outdoor hard courts at the Topnotch Inn in Stowe, Vermont in the United States that was part of the 1981 Grand Prix circuit. It was the fourth edition of the tournament and was held from August 10 through August 16, 1981. Second-seeded Brian Gottfried won the singles title.
The 1979 Cathay Trust Championships was a men's tennis tournament played on indoor carpet courts in Taipei, Taiwan that was part of the 1979 Colgate-Palmolive Grand Prix. It was the third edition of the tournament and was held from 12 November through 18 November 1979. Fourth-seeded Bob Lutz won the singles title.
The 1979 Colgate-Hong Kong Patrons Classic, also known as the Hong Kong Open, was a men's tennis tournament played on outdoor hard courts in Hong Kong that was part of the 1979 Grand Prix tennis circuit. It was the seventh edition of the event and was held from 5 November through 11 November 1979. First-seeded Jimmy Connors won the singles title.
The 1977 Cologne Cup, also known as the Cologne Grand Prix, was a men's tennis tournament played on indoor carpet courts in Cologne, West Germany that was part of the 1977 Colgate-Palmolive Grand Prix circuit and categorized as a One Star event. It was the second edition of the tournament and was held from 31 October through 6 November 1977. First-seeded Björn Borg won the singles title and the accompanying $10,000 first-prize money
The 1978 Cologne Cup, also known as the Cologne Grand Prix, was a men's tennis tournament played on indoor carpet courts in Cologne, West Germany that was part of the 1978 Colgate-Palmolive Grand Prix circuit. It was the third edition of the tournament and was held from 30 October through 5 November 1978. Fourth-seeded Wojciech Fibak won the singles title and the accompanying $10,000 first-prize money
The 1980 Bank of Oklahoma Classic was a men's tennis tournament played on outdoor hard courts at the Shadow Mountain Racquet Club in Tulsa, Oklahoma in the United States that was part of the 1980 Volvo Grand Prix circuit. It was the third and last edition of the tournament was held from April 7 through April 12, 1980. Unseeded Howard Schoenfield won the singles title and earned $8,750 first-prize money.
The 1975 City National Buckeye Championships was a men's tennis tournament played on outdoor hard courts at the Buckeye Boys Ranch in Grove City, Columbus, Ohio in the United States that was part of Group B category of the 1975 Grand Prix circuit. It was the sixth edition of the tournament and was held from August 12 through August 18, 1975. Fourth-seeded Vijay Amritraj won the singles title and earned $9,000 first-prize money.
Bob Lutz [1] 
Andrew Pattison / 
Bernard Mitton [2] 