March Madness: Ranking the 9 Upsets From the First Weekend

4. 8 Wisconsin 65, 1 Villanova 62

Wisconsin entered their second-round matchup with top overall seed Villanova with only a 27.34 percent win probability, but the entire game looked more evenly matched than that.

The Badgers jumped out to a 20-12 lead and flipped the script on the Wildcats early. Villanova then tied the game at 37 and lead by as much as seven with a little over five minutes to go, dropping Wisconsin's win probability to 8.42 percent.

However, after battling foul trouble for most of the game, Bronson Koenig came to the rescue, scoring 8 of the Badgers' last 14 points. Wisconsin closed the game on a 14-5 run to oust the top seeded 'Cats from the big dance.