The New York City Marathon is Sunday, with more than 50,000 runners from over 150 countries expected to start the race. Here's a guide for the NYC Marathon, which starts in Staten Island and ends in Central Park.

Running influencer Matthew Choi documented his latest marathon with a video of him running through the streets of New York City, chasing a finish time of just under three hours. What the video didn’t show—two people on electronic bikes riding alongside him to gather footage—ultimately led to his disqualification from the New York City Marathon,

Matt Choi, who ran the course in under three hours, was followed by two cameramen on electric bikes, who were said to have obstructed other runners.