michigan teams have spent a total of 22 weeks ranked number 1 with the last time occurring in 2013. entering the 2013–14 season this ranked 13th and third in the big ten behind indiana (54) and ohio state (37). two michigan teams (december 14, 1964 87–85 over wichita state at detroit and december 13, 1997 81–73 over duke at home) have defeated the number one ranked team.