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Built on bad decisions in Boulder, CO.

Folsom Lake Trail Run

4 Race Events50K, 50K, Half Marathon, 10K

Inside Trail Racing

Folsom, California, United States

Course map for Folsom Lake Trail Run 10K

Folsom Lake Trail Run 10K

May 2, 2026

10K

Course map for Folsom Lake Trail Run 35K

Folsom Lake Trail Run 35K

May 2, 2026

50K

Course map for Folsom Lake Trail Run 50K

Folsom Lake Trail Run 50K

May 2, 2026

50K

Course map for Folsom Lake Trail Run Half Marathon

Folsom Lake Trail Run Half Marathon

May 2, 2026

Half Marathon