Dominic Korir and Askale Merachi were the men's and women's winners of Sunday's 38th Broad Street Run in Philadelphia.
Korir finished the 10-mile course with an unofficial time of 47 minutes and 38 seconds, in a photo finish with Philip Mburu, who crossed the finish line a second later.
Merachi finished the course with an unofficial time of 53:49, coming in 19 seconds ahead of Serena Burka.
Tens of thousands of runners took part in the annual event, including members of the NBC10 team.
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Dan Stamm and Jessica Boyington were the first NBC10 members to cross the finish line.