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Crazy races that are fun to run

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The <a href='http://bostonurbaniditarod.com/' target='_blank'>Boston Urban Iditarod</a> borrows its theme from the famous Alaskan sled dog race. Except in Boston, the dogs are humans and the sled is a shopping cart. Turns out running doesn't have to be mundane. Check out some other crazy races that'll inspire you to #getfit this year.

The Boston Urban Iditarod borrows its theme from the famous Alaskan sled dog race. Except in Boston, the dogs are humans and the sled is a shopping cart. Turns out running doesn't have to be mundane. Check out some other crazy races that'll inspire you to #getfit this year.