Middle Tennessee State's win over Michigan State is the biggest upset in NCAA Tournament history

....Now, the 2015-16 Spartans will forever be remembered for something far less envious: Being on the receiving end of the biggest upset in the history of the NCAA Tournament. It's a statement that seems hyperbolic until you dig into the minutiae of just how improbable Middle Tennessee State's 90-81 triumph was.

A total of 13.02 million brackets were entered this year on ESPN.com, and 22.3 percent of them had Michigan State winning it all. The only team to receive more love from the American public was No. 1 overall seed Kansas, which got the top nod 25.0 percent of the time.

(snip)

Two seeds have lost in the first round before, but never like this. Never when the consensus was that the team being upset didn't just have a shot to win it all, but was arguably the favorite to win it all.

http://www.sbnation.com/college-basketball/2016/3/18/11265176/middle-tennessee-state-upset-michigan-state-ncaa-tournament-march-madness