The Blue 2 Blue Challenge

The Blue 2 Blue Challenge is a demanding 50K trail race set in New Haven, Connecticut, known for its challenging terrain and technical trails. Scheduled for May 4, 2025, this event features a rigorous out-and-back course that includes significant elevation gain and rocky paths, making it suitable for experienced runners only. Participants must have completed a qualifying trail 50K within the past year to register.

The race emphasizes self-sufficiency, with strict cutoffs and no pacers or crews allowed. Runners can expect aid stations along the route, and all finishers receive high-quality hoodies and trucker hats. Visit the organization's website for the most recent information.