Trail Running Calendar Idaho 2026-2027

The Pocatello Fall Ultra will take place in Pocatello on Saturday 19 September 2026. You can run between 20 and 100 kilometers.

Day 6 of the Northwest Series takes place at Hell's Gate State Park in Lewiston, Idaho, on September 24, 2026, offering races from 5K to 50K. Mainly Marathons organizes the event, which notes no time limits and features medals and event mer..

A community trail run in Boise on September 26, 2026, the 3rd Annual LESS Society Table Rock Run follows the 3.8 mile Table Rock Trail with roughly 900 feet of elevation gain. Proceeds support scholarships for Idaho students.

Trail event in Boise offering 50 Mile, 50K and 27K routes on singletrack through the lower foothills with substantial elevation gain and on-course aid stations.

Trail half marathon and 55K ultra at Oregon Gulch near Ketchum, Idaho, featuring forested single-track loops, steep climbs, stocked aid stations, and free race photos.

Moscow Mountain Madness invites trail lovers to tackle 5 mile, half marathon or 50k courses across technical single track and forest scenery. Tough terrain, aid stations and authentic backcountry vibes make it a memorable mountain run.

Loop trail races of 50K, 30K and 20K at Ponderosa State Park near McCall, Idaho, supporting local trail work with varied single track, 6.79 mile loops and notable fall foliage.

Winter trail races near Melba, Idaho, featuring 50k, 20 mile, and 10 mile courses across the Wilson Creek trail system. The 50k combines two loops for about 6000 ft of total elevation gain.