Bay to Breakers_Flickr_David W Oliver_Ted Van Huisen_ss.png

Flickr/David W Oliver/Ted Van Huisen

Where: San Francisco, California

In this uniquely San Francisco 12K—that’s roughly 7.5 miles—a handful of world-class runners mix (but only briefly) with 50,000 weekend warriors, walkers and devil-may-care costumed participants. With twice that number of spectators and live bands interspersed along the route, it’s a rollicking party that spans the city from San Francisco Bay to the Pacific Ocean. Next Race: May 2014