Tournament Challenge: Big win for FGCU

Just 2.3 percent of brackets in ESPN.com's Tournament Challenge picked No. 15 seed Florida Gulf Coast to beat No. 2 seed Georgetown, by far the biggest upset of this year's NCAA tournament. The Hoyas were picked in 3.5 percent of brackets to win the national championship (eighth-most overall), and 23.5 percent of brackets to reach the Final Four. Conversely, 2,354 brackets picked Florida Gulf Coast to win it all.

The Georgetown loss means there are no more perfect brackets left. There are just seven brackets with one loss and 110 with two losses.