Push your limits in 36 hours with full festival support at every loop
Other trail races within 66 miles
Test your limits over 36 hours on the Weld Your Mettle festival loop — a flat 4-mile groomed dirt out-and-back on a private property outside Eaton, Colorado. Unlike most timed events, this one comes with full festival infrastructure: hot food, sauna, cold plunge, massage zone, and crew access every 2 miles throughout the entire event window. Set a personal distance record with one of the most runner-supportive environments in the sport.
Some ultra experience recommended
Eaton, CO, United StatesJune 05, 2027
Weld Your Mettle 36 Hour is a multi-loop trail race in Eaton, CO, United States, held on June 05, 2027. The course covers 100 miles and has a 36h cutoff.
This edition has its own course and we haven't mapped it yet. The interactive map, elevation profile and aid stations will appear here once the route is confirmed.
Aid stations for this edition aren't published yet. They'll appear here once the route is confirmed.
Free self-camping (tent and RV/camper) on the 146-acre property, first-come first-serve — no reservation needed. Camp setup begins Friday May 29 at noon. Paid Glamping Tents available via Sundrift Society as a race add-on (queen beds, bedding, weather-proof floor; tents reserved Friday–Monday).
No required gear specified
No recommended gear specified
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