They were honored by a crowd of thousands.
Deena Kastor placed fourth overall.
American leads the race from the start to claim victory.
Lelisa Desisa of Ethiopia presented his medal to Secretary of State John Kerry.
They are starting in Washington D.C. and ending on Boston's Boylston Street.
Bill Rodgers will be taking part in the inaugural race.
A leading medical expert thought so back in 1969.
The two-time defending champion will have his hands full in this year's half marathon.
Harsh conditions couldn't stop the 800m world-record holder on Saturday.
Organizers are hoping to recreate the huge success of the 2007 event.