Fun Fall 5K Races in Washington (Photos)

From muddy obstacle runs to races that end with a karaoke fest, this fall there’s a 5K for everyone.

Runners get splattered with glowing colored powder at the Cosmic Run 5K, one of the many fun races coming to Washington this fall. Photograph via Cosmic Run's Facebook page.

Big fall races like the Marine Corps Marathon and Army Ten-Miler have long been sold out, but there are plenty of other local runs we’re excited about. We’re especially hyped up for the ones that offer a twist, from a race at Dulles airport to the area’s first-ever Ruckus DC obstacle race.