(See also: List of Drum Corps International World Championship finalists) At the end of the summer season, Drum Corps International (DCI) World Class corps compete to earn the title of DCI World Class Champion (formerly DCI Division I World Champion). The championships consist of 3 rounds—Preliminaries, Semifinals, and Finals—held on the first or second Thursday, Friday, and Saturday of August. Through 2010, all active World Class corps (22 corps as of 2016) competed in the Quarterfinals, with the top 17 advancing to the Semifinals. The top 12 corps from Semifinals then advanced to the Finals. Since the 2011 season, all active DCI corps (Open and World Class) have been permitted to compete for the championship. In this format, about 40 corps compete in Preliminaries, while the top 25 advan