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Built on bad decisions in Boulder, CO.

Sulphur Springs Trail Race

6 Race Events50K, 50 Mile, 10K, 100 Mile, 100K, Half Marathon

Burlington Runners Club

Hamilton, Ontario, Canada

Sulphur Springs Trail Race 100 Mile

May 23, 2026

100 MileCrewPacers

Sulphur Springs Trail Race 100K

May 23, 2026

Sulphur Springs Trail Race 10K

Sulphur Springs Trail Race 10K

May 24, 2026

Sulphur Springs Trail Race 20K

Sulphur Springs Trail Race 20K

May 24, 2026

Sulphur Springs Trail Race 50 Mile

May 23, 2026

Sulphur Springs Trail Race 50K

May 23, 2026