Distance: 3.2 miles
Difficulty: The Maniac race might have ranked results, but the obstacles, not speed, take center stage. Most notable are the fairly long crawls required to get you through a cramped, muddy, and dark tunnel, or under a shoulder-high walkway built out of chain-link fencing. These will test your quads and patience, and weed out any claustrophobes.
The Vibe: The after-party is top-notch, with craft beer, live bands, and an impressive inflatable playground – think: advanced moon bounce – that adults will love as much as kids.
Cost: $48–$88; ruggedmaniac.com