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The Blue 2 Blue Challenge

West Rock, United States • 4 May 2025

The Blue 2 Blue Challenge is a demanding 50K trail race held in New Haven, Connecticut, known for its challenging terrain and technical trails. Participants will navigate some of the toughest trails in the state, including the Regicides and Quinnipiac Trails, with a total elevation gain of approximately 6,350 feet. The race features a strict 10-hour cutoff and requires runners to have completed a trail 50K within the past year. Aid stations are strategically placed along the course, and runners must adhere to specific time limits at various checkpoints. This event is designed for experienced trail runners seeking a significant challenge. Visit the organization's website for the most recent information.

United States Connecticut West Rock

Race information

Registration
50 km
50K
Visit the organization's website for the most recent information.
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