Updated 6:53 PM | Mar. 22, 2019What Went Down In The First Round Of The NCAA TournamentBy FiveThirtyEightFiled under March Madness Neil Paine 4:56 pm Haha, true. We should have seen this coming with two teams ranked among the Top 20 in KenPom defensive efficiency. × The best of FiveThirtyEight, delivered to you. Thanks for subscribing!You should receive a confirmation in your inbox shortly. Error: {{data}}. Email Address Morning Distribution (Daily) Your daily briefing from FiveThirtyEight. Top Stories Newsletter (Weekly) FiveThirtyEight’s top stories last week. Politics Newsletter (Weekly) FiveThirtyEight’s top politics stories last week. Popular Stories How We Calculate NBA Elo Ratings Nikola Jokić Bolstered His MVP Case With ... His Defense? You Don’t Need Sports Drinks To Stay Hydrated