Biya Simbassa and Steph Bruce won their respective top spots Saturday in the Great Cow Harbor race, leading a field of 5,000 runners through the streets of Northport.
The race also served as the national 10k championship for USA Track & Field for the first time.
To fit 5,000 runners through the sometimes narrow streets, competitors went off in 14 waves based on their expected times.
The run supported Special Olympics Long Island, Northwell Health Foundation, veterans, a food pantry, and other local causes.
There was also a fun 2k race.
Saturday’s race was followed Sunday by other Cow Harbor day celebrations, including a parade, vendors and more.