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Contact 13.1
13.1 Atlanta
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13.1 Boston
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13.1 Chicago
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13.1 Fort Lauderdale
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13.1 Los Angeles
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13.1 Miami Beach
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13.1 Minneapolis
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13.1 New York
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Corporate Challenge
Series Awards

13.1 Marathon® is the Inaugural series of themed half marathons serving some of America's top running communities with a stand-alone half marathon for locals to embrace and visitors to experience.