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Built on bad decisions in Boulder, CO.

run.Windsor Race Series

Weld Your Mettle Running Festival

May 30, 2026

Eaton, CO, US

100 Mile, 100K, 50 Mile, 50K

Weld Your Mettle 100 Mile

May 30, 2026

100 MileCrewPacers

Weld Your Mettle 100K

May 30, 2026

Weld Your Mettle 50 Mile

May 30, 2026

50 MileCrewPacers

Weld Your Mettle 50K

May 30, 2026

Weld Your Mettle 36 Hour

May 30, 2026

100 MileCrewPacers