Tournament Challenge: Ohio State upset

The first game of the tournament provided the first significant upset, with 11-seed Dayton beating 6-seed Ohio State. Just 19.7 percent of the 11 million brackets in Tournament Challenge picked the Flyers to win.

However, the Buckeyes weren't a popular pick to go much further in the tournament, taken in just 25.4 percent of brackets to go to the Sweet 16 and 2.2 percent to the Final Four.