Defending champions Hellen Obiri of Kenya, Benson Kipruto of Kenya, and Marcel Hug of Switzerland will return to headline the women's open division and men's open and wheelchair divisions.
More than 50,000 runners from around the world will be participating in the event, and they can expect to see an increased police presence along the race course.
It's a tradition that dates back more than 40 years and inspires runners as they make their way through Brooklyn.
The Villavicencio family -- Rodrigo, James and Justin -- will have three generations running in the race for the first time on race day side by side.
The free event featured more than 1,000 kids ages 2-18 from across the five boroughs.
The largest marathon in the world has chosen Gabby Thomas as its grand marshal for this year's race!