Colorado
Colorado Trail Running Calendar 2026-2027
Explore the best trail runs in Colorado for 2026-2027! Our updated list features 146 exciting trail runs across the region. Find your next trail run in Colorado below and join the trail community at these great events!
June 2027
A three day dirt festival in Alma, Colorado at 10,600 feet featuring mountain bike races, trail running, an off road duathlon, free kids races, and weekend camping in an alpine meadow.
A trail event near Parker Colorado featuring a 10k with a stepped incline, a kids one mile on the same start, age and gender based staggered starts, aid stations on the loop, and volunteer entry options.
Trail races of 10 mile, 5 mile and 5K at Lory State Park with foothill views, aid stations using biodegradable cups, and post-race food, drink and awards.
July 2027
High altitude trail races in Como and Grant, Colorado on July 9 and 10 2027, offering multiple distances including a point to point 100k and a 100 mile with qualifying rules.
A 100 mile ultramarathon around Silverton Colorado through high alpine terrain with about 66,882 feet of total elevation change.
Three day stage race offering Half Pint and Full Pint options July 26 to 28 2027 across three stages with published race guide and support services.