U.S. Sassuolo Calcio is an Italian professional football club based in Sassuolo, Modena, who play their matches in Mapei Stadium – Città del Tricolore. The club was formed in 1920, and the club's formal debut in an official league was also in 1920. The club has never won the Serie A, but has won the Serie B once and the Serie C1 once. Sassuolo has played eight seasons in the Serie A, six seasons in the Serie B, two seasons in the Serie C (or equivalent), 24 seasons in the Serie D (or equivalent) and 59 seasons in lower competitions.