The club made their first appearance in Svenska mästerskapet (SM), a tournament held to determine the Swedish champions, in 1932–33.
[3] In 1937–38, Västerås IK made history by becoming the first team playing outside the top division (Allsvenskan) to win SM.
[7] In 1947–48, Västerås IK reached the SM semi-finals, but were again defeated by IFK Kristianstad.
[11] After that season, the SM tournament was discontinued and the title of Swedish Champions was awarded to the league winners.
[12] Västerås IK were promoted back to Allsvenskan in 1955, but were relegated after only one season and never returned to the top division.