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Bear Brook Trail Races

Allenstown, United States • 20 Sep 2025

Bear Brook Trail Races take place at Bear Brook State Park in Allenstown, New Hampshire. The event offers three trail races: Marathon, Half Marathon, and 10K (the 10K follows Mindy’s Loop). The Marathon doubles the Half Marathon route.

Runners encounter diverse terrain—from beautiful single-track through blueberry fields to steep uphills—showcasing the park’s natural beauty. For 2025, the race is GPX-only with minimal course markings; entrants download and navigate with the provided GPX, with maps released in advance. Aid stations are well stocked with food, water, and Tailwind; no cups, no pets, and no crews/pacers.

Marathon has a strict 9-hour cutoff. Visit the organization's website for the most recent information.

United States New Hampshire Allenstown

Race information

Registration Facebook
42 km
Marathon
21 km
Half Marathon
10 km
10k
Visit the organization's website for the most recent information.
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