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Weld Your Mettle Running Festival

Eaton, United States • 30-31 May 2026

The Weld Your Mettle Running Festival, held in Eaton, Colorado, is a multi-day event featuring a variety of running challenges for all levels. Participants can choose from solo or relay races lasting 3, 6, 9, 12, 24, or 36 hours, including a 100-mile ultra with a 36-hour limit. Unique formats like the 2x2x24 and 4x4x36 involve running or walking set distances every few hours over extended periods.

The course is a 4-mile out-and-back horseshoe loop with aid stations and crew access. Additional events include a 7K run or ruck and a kids' fun run. The festival offers camping, glamping, and community activities such as saunas, cold plunges, and live music, creating a spirited and supportive atmosphere. Visit the organization's website for the most recent information.

United States Colorado Eaton

Race information

Registration
36 km
36 Hour Solo
36 km
36 Hour Relay: 2-12 Runners
24 km
24 Hour Solo
24 km
24 Hour Relay: 2-12 Runners
100 mi
100 Mile Solo
12 km
12 Hour Relay: 2-9 Runners
12 km
12 Hour Solo
9 km
9 Hour Relay: 2-9 Runners
9 km
9 Hour Solo
6 km
6 Hour Solo
6 km
6 Hour Relay: 2-6 Runners
3 km
3 Hour Solo
3 km
3 Hour Relay: 2-3 Runners
7 km
7k Walk or Run (4.3 Miles)
7 km
7k Ruck (4.3 Miles)
4 mi
4x4x36 (run or Walk 4 Miles Every 4 Hours for 36 Hours)
2x2x24 (run or Walk 2 Miles Every 2 Hours for 24 Hours)
1 Mile Kids Fun Run
Visit the organization's website for the most recent information.
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