It was held in Columbus, Ohio in the United States and played on outdoor hard courts from 1971 to 1976, then played on outdoor clay courts from 1977 to 1979, and then played again on outdoor hard courts from 1980 to 1984.
Columbus, Ohio | Christopher Columbus | Australian Open | French Open | Columbus | Open University | open source | U.S. Open | Knights of Columbus | Wacken Open Air | The Open Championship | U.S. Open (tennis) | Columbus, Georgia | All England Open Badminton Championships | U.S. Open (golf) | Open Source | Open-pit mining | 2006 Australian Open | Open Software Foundation | Indira Gandhi National Open University | Columbus Crew | Port Columbus International Airport | Lamar Hunt U.S. Open Cup | Columbus Day | Green Lawn Cemetery, Columbus, Ohio | Columbus Museum of Art | 2005 Australian Open – Men's Singles | U.S. Women's Open | open access | Gerry Weber Open |