Rocket Mortgage FieldHouse is a multi-purpose arena in Cleveland, Ohio. The building is the home of the Cleveland Cavaliers of the National Basketball Association (NBA) and the Cleveland Monsters of the American Hockey League (AHL). It also serves as a secondary arena for Cleveland State Vikings men's and women's basketball. Rocket Mortgage FieldHouse opened in October 1994 as part of the Gateway Sports and Entertainment Complex with adjacent Progressive Field, which opened in April of that year. The facility replaced the Richfield Coliseum as the primary entertainment facility for the region and the home of the Cavaliers, and supplanted the Wolstein Center at Cleveland State University, which opened in 1991, as the primary concert and athletic venue in downtown Cleveland. From its opening in October 1994 until August 2005, it was known as Gund Arena, named for former Cavaliers owner Gordon Gund, after he paid for the naming rights. After purchasing a majority of the Cavaliers in March 2005, Dan Gilbert bought the naming rights in August 2005 and renamed the building Quicken Loans Arena after his mortgage lending company Quicken Loans. It was renamed in April 2019 for Quicken Loans' online mortgage lending service, Rocket Mortgage, as part of the facility's renovation and expansion. Rocket Mortgage FieldHouse seats 19,432 people in its basketball configuration and up to 18,926 for ice hockey. It is a frequent site for concerts and other athletic events such as the men's and women's basketball tournaments of the Mid-American Conference (MAC), hosting the men's tournament since 2000 and the women's tournament since 2001. It has also been the host venue for the 2007 NCAA women's Division I basketball Final Four, opening and regional semi-final games in the NCAA Division I men's basketball tournament, the U.S. Figure Skating Championships in 2000 and 2009, and the 2016 Republican National Convention. History Rocket Mortgage FieldHouse was preceded in downtown Cleveland by the Cleveland Arena, a facility built in 1937 with a seating capacity for basketball of approximately 12,000. It was best known as the site of the Moondog Coronation Ball in 1952, widely regarded as the first rock and roll concert. Cleveland Arena was the first home of the Cavaliers in 1970. The Cleveland Arena was also the home of an earlier professional basketball team, the Cleveland Rebels of the Basketball Association of America, the original Cleveland Barons ice hockey team, and hosted several games of the Cincinnati