Tens of thousands of spectators cheer marathoners along the streets of this northeastern Massachusetts city, home to the world’s oldest annual marathon.
119th Boston Marathon
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Runners cross the start line in the women's division of the Boston Marathon, in Hopkinton, April 20, 2015.
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Marathon participant Christopher Snedecor of Somerville, MA goes through security as he arrives at the Boston Commons to board a bus that will bring him to the marathon starting line in Hopkinton, April 20, 2015.
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Ejegayehu Dibaba leads the pack at the start of the 2015 Boston Marathon, Boston, MA, April 20, 2015.
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Boston Marathon runner Tenee Ramsdell (left) gets a hug from Evangline Gersish, both from San Diego, before boarding a shuttle bus to the starting line in Hopkinton, MA, April 20, 2015.