The race raises more than $1 million each year for Big Brothers Big Sisters one-to-one youth mentoring programs, which serve more than 3,000 young people throughout the five boroughs, according to a spokesman. This is the race’s ninth year, but its first in Prospect Park. It was previously held in Manhattan’s Riverside Park.
 
More than 4,000 people, including "Bigs" and "Littles" from the organization, participate in the race, which is part of the Nickelodeon Worldwide Day of Play. The 5K race is followed by a picnic and family-friendly festivities.