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Tough as Trails Race Series

Durham, United States • 26 Oct 2025

The Tough as Trails Race Series, presented by Bull City Running Co., is a challenging off-road trail running series held in North Carolina across multiple scenic locations including Eno River State Park, Uwharrie National Forest, and the Mountains-to-Sea Trail. The 2025-2026 series features three races: the Eno River Run (6 or 11 miles), Uwharrie Mountain Run (8, 20, or 40 miles), and the Mountains-to-Sea Trail Challenge (12 miles or 50km). Participants must register for all three races and complete them to be eligible for awards. The series emphasizes beautiful single-track trails and offers custom finisher awards along with race-specific benefits. Visit the organization's website for the most recent information.

United States North Carolina Durham

Race information

Website Registration
40 mi
Uwharrie Mountain Run 40 Miles
50 km
Mountains-to-Sea Trail Challenge 50 Km
20 mi
Uwharrie Mountain Run 20 Miles
12 mi
Mountains-to-Sea Trail Challenge 12 Miles
11 mi
Eno River Run 11 Miles
8 mi
Uwharrie Mountain Run 8 Miles
6 mi
Eno River Run 6 Miles
Visit the organization's website for the most recent information.
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