Madness tips off with the First Four in Dayton with a mix of bubble teams who made the cut and smaller schools hoping to be this year's Cinderella.

The First Four has been part of March Madness since 2011, giving teams that may not have made the tournament in previous years a shot at making the field of 64. It's the second tournament expansion since the Mountain West Conference gained Division I status in 1999 and earned an automatic bid to the tournament in 2001.

Basketball fans in Iowa are going to be glued to their TVs in March — four teams are playing in the NCAA Tournament. Driving the news: Both the Iowa State men's and women's teams are in, though the women have to play in one of the First Four games on Wednesday against Princeton in order to make the field of 64.