Trail Race · Colorado
Trail Races in Colorado
Every trail race we track across Colorado, sorted by date. Each card shows deterministic 0–100 scores for beginner-friendliness, PR potential, value, vibe, and family appeal.
Marathon
Sat, May 23, 2026
Woodland Park, Colorado
trail
Rolling
30PR40value45vibe
Ultra
Sat, Jul 18, 2026
Aspen, Colorado
trail
Rolling
30PR40value40vibe
Other
Sat, Aug 1, 2026
Hesperus, Colorado
trail
Rolling
30PR40value50vibe
scenic
Half Marathon
Sat, Aug 1, 2026
Fairplay, Colorado
trail
Rolling
30PR40value55vibe
scenic
Ultra
Sat, Aug 15, 2026
Leadville, Colorado
700 runners
trail
Rolling
30PR40value45vibe
Other
Tue, Aug 25, 2026
Bellvue, Colorado
trail
Rolling
30PR40value40vibe
Other
Sat, Aug 29, 2026
Steamboat Springs, Colorado
trail
Rolling
30PR40value30vibe
Other
Sat, Sep 5, 2026
Keystone, Colorado
trail
Rolling
30PR40value40vibe
Other
Sat, Sep 12, 2026
Telluride, Colorado
trail
Rolling
30PR40value40vibe
Half Marathon
Sat, Sep 12, 2026
Buena Vista, Colorado
trail
Rolling
30PR40value55vibe
scenic
Other
Sat, Oct 3, 2026
Littleton, Colorado
trail
Rolling
30PR40value50vibe
scenic
Other
Sun, Oct 4, 2026
Aspen, Colorado
trail
Rolling
30PR50value90vibe
costume
charity
festive
Marathon
Sat, Oct 17, 2026
Fort Collins, Colorado
trail
Rolling
30PR40value55vibe
scenic
Half Marathon
Sat, Nov 7, 2026
Lone Tree, Colorado
trail
Rolling
30PR40value45vibe
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Top metros in Colorado for trail races
Cities in Colorado with the most trail race races on the calendar.