Weld Your Mettle Running Festival
About this race
Join us for three days of running excitement! Whether you're tackling the events individually or teaming up for relays: 14 mile, full marathon, 50k, 5 miles 100k,100 miles, or taking on a 7K Run or Ruck, - there's an event for everyone. Experience the thrill of friendly competition and the energy of a supportive community!
Relax in luxurious Glamping Tents or set up your own campsite, and enjoy access to a sauna, cold plunges, entertainment, food, drinks, and the race itself. Catch the run.Wild movie screening, bon fires and more throughout the weekend! With a full schedule of activities, there's something for everyone—whether you're joining us for the race, the fun, or both. The event takes place on a beautiful 146-acre private property in Northern Colorado, featuring a 2-mile groomed dirt loop course with breathtaking views of Longs Peak. Bring your friends or family and make a weekend of it!
Location: 11586 CR 80 Eaton, CO US 80615
Entry into this race is more than a one day event. It's an invitation to change your life, challenge your excuses, dig deep and WELD YOUR METTLE.
Join fellow runners on May 30, 2026 for the Weld Your Mettle Running Festival. It's a fantastic Ultra, 6.9K, 22.5K, Marathon featuring a flat and fast course in Eaton.
Pick your distance
Trail running
50 Mile Relay: 2-9 runners
Run the 4 Mile Loop Route, as part of a Relay Team of 2-12 (setup during the registration process) to reach 50 miles with a 14 hour cut off. Breaks to sauna, cold plunge, rest, eat or use the restroom between laps are allowed. You'll have the option to add on the Glamping Tent package at checkout. If doing a Relay Team, the first team member to sign up will create a Team Name and Password, sharing the link with teammates. Each team mate registers and pays entry fees individually.
100K Relay: 2-12 runners
Run the 4 Mile Loop Route, as part of a Relay Team of 2-12 (setup during the registration process) to reach 100K with a 24 hour cut off. Breaks to sauna, cold plunge, rest, eat or use the restroom between laps are allowed. You'll have the option to add on the Glamping Tent package at checkout. If doing a Relay Team, the first team member to sign up will create a Team Name and Password, sharing the link with teammates. Each team mate registers and pays entry fees individually.
50k
Run the 4 Mile Loop Route, until you reach 50K. Breaks to sauna, cold plunge, rest, eat or use the restroom between laps are allowed. You'll have the option to add on the Glamping Tent package at checkout. 10 Hour Cutoff.
50 Miles
Run the 4 Mile Loop Route, until you reach 50 miles. Breaks to sauna, cold plunge, rest, eat or use the restroom between laps are allowed. You'll have the option to add on the Glamping Tent package at checkout. 14 Hour Cutoff.
100K
Run the 4 Mile Loop Route, until you reach 100K. Breaks to sauna, cold plunge, rest, eat or use the restroom between laps are allowed. You'll have the option to add on the Glamping Tent package at checkout. 24 Hour Cutoff.
100 Mile
Run the 4 Mile Loop Route, until you reach 100 miles with a 36 hour cutoff. Breaks to sauna, cold plunge, rest, eat or use the restroom between laps are allowed. You'll have the option to add on the Glamping Tent package at checkout.
100 Mile Relay: 2-12 runners
Run the 4 Mile Loop Route, as part of a Relay Team of 2 - 12 (setup during the registration process) until you reach 100 miles (36 hour cutoff). Breaks to sauna, cold plunge, rest, eat or use the restroom between laps are allowed. You'll have the option to add on the Glamping Tent package at checkout. If doing a Relay Team, the first team member to sign up will create a Team Name and Password, sharing the link with teammates. Each team mate registers and pays entry fees individually.
Running
7K Ruck (4.3 Miles)
The course is a 2 mile out and back completed twice to make the 7k distance. A weighted vest of 35 lbs is required for this event.
7k walk or run (4.3 miles)
The course is a 2 mile out and back completed twice to make the 7k distance.
14 Mile
Run the 4 Mile Loop Route, until you reach 14 miles. Breaks to sauna, cold plunge, rest, eat or use the restroom between laps are allowed. You'll have the option to add on the Glamping Tent package at checkout. 5 Hour Cutoff.
Full Marathon
Run the 4 Mile Loop Route, until you reach 26.2 miles. Breaks to sauna, cold plunge, rest, eat or use the restroom between laps are allowed. You'll have the option to add on the Glamping Tent package at checkout. 8 Hour Cutoff.
Weather Overview
These values represent the 5-year monthly averages for May in Eaton.
About Eaton
Weld Your Mettle Running Festival takes place in Eaton, Colorado, United States. The local timezone is America/Denver.
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🏃 Plan Your Next Race in Eaton
Find upcoming events by distance:
- Marathons in Eaton Scenic 42.2K routes and Eaton Boston qualifiers.
- Eaton Running Calendar 2026 See all upcoming race dates.
Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.
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