Meet the best Call of Duty team in the world

LOS ANGELES — College basketball isn’t the only sport filled with busted brackets and Cinderella stories. For the past month, a different kind of March Madness has been building up off the court and inside the first-person shooter Call of Duty: Ghosts.

Over the weekend, 31 professional teams from around the world competed in Ghosts at the annual Call of Duty Championship. The modern military shooter franchise has become a popular choice in e-sports, a thriving industry that pits players against each other in organized gaming competitions. Sponsored by Microsoft and Call of Duty publisher Activision, and hosted by e-sports company Major League Gaming, the tournament emphasized both skill and endurance: Teams spent three days fighting for their slice of the $1,000,000 prize pool.