An estimated 40,000 runners participated this morning in the 34th annual Blue Cross Broad Street Run.
The race from North Broad Street to the Navy Yard is billed as "the largest 10-miler in the country."
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Mayor Michael Nutter was on hand at the starting line and midway through the course to cheer on participants and issue high-fives.
In light of the bombings that marred this year's Boston Marathon, stepped-up security measures at the Broad Street Run were evident, from plastic bags issued to runners in lieu of duffles to the increased number of police personnel.
Jonathan Ostertag, 28, of West Chester, crossed the finish line first with a time of 46 minutes, 59 seconds.
Lauren Burkavage, 29, of Philadelphia, came in first in the female division and 13th overall with a chip time of 50 minutes, 44 seconds.
For a full list of results click here.