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Built on bad decisions in Boulder, CO.

Weld Your Mettle Running Festival

5 Race Events100 Mile, 100K, 50 Mile, 50K, 100 Mile

run.Windsor Race Series

Eaton, Colorado, United States

Weld Your Mettle 100 Mile

May 30, 2026

100 MileCrewPacers

Weld Your Mettle 100K

May 30, 2026

Weld Your Mettle 36 Hour

May 30, 2026

100 MileCrewPacers

Weld Your Mettle 50 Mile

May 30, 2026

50 MileCrewPacers

Weld Your Mettle 50K

May 30, 2026