On March 16th, 2018 the UMBC retrievers shocked the world becoming the first No. 16 seed in the history to knock off a No. 1 seed, 75-54. And this hasn’t been the only shocker in the first two rounds of this year’s NCAA men’s tournament. Only two No. 1 seeds survived the tournament’s first weekend, that’s the fewest since 2004. So what’s making this year’s tournament so unpredictable? » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News is a leading source of global news and information. Here you will find clips from NBC Nightly News, Meet The Press, and original digital videos. Subscribe to our channel for news stories, technology, politics, health, entertainment, science, business, and exclusive NBC investigations. Connect with NBC News Online! Visit NBCNews.Com: http://nbcnews.to/ReadNBC Find NBC News on Facebook: http://nbcnews.to/LikeNBC Follow NBC News on Twitter: http://nbcnews.to/FollowNBC Follow NBC News on Google+: http://nbcnews.to/PlusNBC Follow NBC News on Instagram: http://nbcnews.to/InstaNBC Follow NBC News on Pinterest: http://nbcnews.to/PinNBC The Unpredictability Of March Madness Explained | Mach | NBC News