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12 Crazy Photos From Bay to Breakers In SF

Bay to Breakers in San Francisco is home to fast winners and fantastic costumes.

The Zappos Bay to Breakers 12K is the oldest consecutively run annual race in the world. Taking place in San Francisco, the race hosts elite runners hoping to run fast times over the hills of the city. But what ends up being the biggest attraction is the legions of runners who dress in costume to participate in a fun-filled day of running. Take a look at some of our favorite photos from the event.