The Siege Race, Silver Spring

A hardcore runner might laugh at the idea of a race that's only five miles long––until they realize the course has more than 25 obstacles designed to challenge the runners' physical and mental strength. That's the Siege Race, an event designed by elite law enforcement to help athletes feel more courageous and confident in their abilities. The obstacles include everything from scaling walls and inclined monkey bars to challenges such as climbing cargo nets and carrying weighted poles. Participants aren't required to conquer each obstacle, but those wanting to give it their best try can sign up for pre-race training events where trainers help runners practice on the actual obstacles.