Scottrade Center is a 19,150-seat arena located in downtown St. Louis, Missouri, United States. It is the home of the St. Louis Blues of the National Hockey League. The arena opened in 1994 and was known as Kiel Center until 2000 and Savvis Center from 2000 to 2006. The current name comes from financial firm Scottrade, based in suburban St. Louis, who purchased naming rights in 2006. The largest crowd to attend an event at the Scottrade Center was 22,612, which happened twice during the 2007 Missouri Valley Conference Tournament, known as "Arch Madness".