Weld Your Mettle Running Festival

Eaton, United States • 30-31 May 2026

Event overview

The Weld Your Mettle Running Festival takes place May 30-31, 2026 in Eaton, Colorado (11586 CR 80, Eaton CO 80615). The festival features multiple timed running events held on a 4-mile out-and-back loop. The course is horseshoe-shaped with crew access and a stocked aid station at the start/finish and at the two-mile turnaround. Glamping tents and self camping are offered on site.

Events and features

The festival offers a range of solo, relay, specialty and family events: Visit the organization's website for the most recent information.

  • 3, 6, 9, 12, 24, 36 hour solo events
  • 3, 6, 9, 12, 24, 36 hour relays - team sizes vary, 2-12 runners
  • 100 mile solo (36 hour time limit)
  • 2x2x24 (2 miles every 2 hours) and 4x4x36 (4 miles every 4 hours) formats
  • 7K (4.3 miles) run or ruck - ruck requires a 30 lb weighted vest or backpack
  • 1 mile Kids Fun Run
  • Virtual race with mug, medal and race bib provided
  • Glamping tents available; self camping at no extra cost
  • Finisher perks include shirt, medal, sauna access, cold plunge, massage, and belt buckles for finishes over 26.2 miles

Race information

100 mi
100 Mile Solo
4 mi
4x4x36
4 mi
7k Walk or Run (4.3 Miles)
4 mi
7k Ruck (4.3 Miles)
4 mi
4 Mile Out and Back Loop
2x2x24
1 Mile Kids Fun Run
Visit the organization's website for the most recent information.
Trail runs nearby

Run against the clock on a fully supported one mile dirt loop in Fort Collins, Colorado, choosing 6, 12, or 24 hour solo or relay formats. Enjoy an overnight challenge chasing distances from a marathon to an ultra in a friendly setting.

Run the Ranch is a weekend trail festival at Sylvan Dale Guest Ranch in Loveland, CO, featuring 5K, 10K and timed 4, 6 and 12 hour events plus relays and virtual options. Enjoy varied ranch terrain, on course support, meal tickets for entra..

Hit the scenic Great Western Trail in Severance on April 18, 2026 with 5K, 10K, half marathon and kids fun run options for every level. Enjoy chip timing, finisher shirt and medal, plus post race food and beer while supporting local nonprof..

Quad Rock 25 and 50 deliver rugged singletrack and big Colorado climbs around Fort Collins, offering a 25 mile single loop or 50 mile double loop with roughly 5,500 or 11,000 ft of gain. Entries are capped and registration opens Dec 15, 202..

Run scenic ridgelines and singletrack at Devil's Backbone in the Crazy Legs 10k+ Trail Run, then celebrate with awards at Loveland Aleworks. Entry includes a hat with a random patch and aid near mile 3, and parking passes are required.

Enjoy scenic treetop trails and Horsetooth Reservoir views at the Timberview Trail Run in Lory State Park, with 5K, 5 Mile and 10 Mile options for all abilities. This USATF event is 100% plant based and finishes with pancakes and craft beer..