|U.S. National Indoor Championships|
|Defunct tennis tournament|
|Venue||1898 Winter Lawn Tennis Club, Newton Center, MA,|
1900–1963 Seventh Regiment Armory, New York, NY,
1941 Oklahoma Coliseum, Oklahoma City, OK
1964–1976 Wicomico Youth and Civic Center, Salisbury, MD,
1977–2014 Racquet Club of Memphis, TN
|Surface||Hard / Indoors|
The U.S. National Indoor Championships was a tennis tournament that was last held at the Racquet Club of Memphis in Memphis, Tennessee, United States. The event was played on indoor hard courts and usually took place in February. For much of its more than 100-year history it was a combined men's and women's tournament but in 2014, its final year, only a men's tournament was held. The event was previously known under various sponsored names including the Memphis Open, the Regions Morgan Keegan Championships, the Kroger St. Jude Championship, and the Volvo Championships.
The men's tournament began in March 1898 when the inaugural edition was played at the Newton Winter Tennis Club in Newton Center and Leo Ware won the title after defeating Holcombe Ward in the final in straight sets. There was no men's tournament in 1899 but in 1900 a men's doubles event was added and the tournament moved to the Seventh Regiment Armory in Manhattan, New York, where it was played until 1963 with the exception of 1941 (Coliseum in Oklahoma City) and 1942–1945 (no tournament). In 1964 the tournament moved to Salisbury, Maryland, and was organized by Jimmy Connors' manager Bill Riordan. The last move occurred after the 1976 tournament, when Memphis became the host of the event and was the location of the tournament until its end in 2014. The men's tournament was part of the Grand Prix tennis circuit between 1976 and 1989 before becoming an ATP Tour event.
- 2014 changes
The 2013 tournament was the last combined men's and women's tournament and was held February 16–24, 2013, at The Racquet Club of Memphis. Marina Erakovic was the last woman to win the title. In 2014 the WTA event moved to Rio de Janeiro. The men's tournament lost its ATP World Tour 500 series certification, which also moved to Rio de Janeiro, but continued an ATP 250 event known as the Memphis Open.
- "Miscellaneous Sport". Boston Evening Transcript. Mar 21, 1898.
- Robertson, Max (1974). The Encyclopedia of Tennis. London: Allen & Unwin. pp. 338, 339. ISBN 9780047960420.
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- Frank Murtaugh (February 8, 2016). "40 Years of Tennis at The Racquet Club". Memphis.
- Big Changes For Tennis in Memphis
- Tennis - ATP World Tour - ATP Approves Event In Rio de Janeiro From 2014
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- "The Brooklyn Daily Eagle". Retrieved 16 February 2015.