Trail Running Calendar Idaho 2026-2027

We have found 40 Trailruns in Idaho. Check below where and when you can find the races.

Experience a unique trail race across dormant tuff volcanoes in Menan Idaho. With distances from 5k to 55k you can explore rugged calderas and enjoy views of the Tetons and Snake River.

A point to point 50K on the Weiser River Trail from Council to Midvale, Idaho, with relay and adaptive athlete options. The route follows a former railroad bed with mixed surfaces and minimal elevation change.

Celebrate and protect nature at City Beach in Sandpoint with a 5 mile run or walk along the Ponderay Bay Trail benefitting local wildlife conservation.

May 2026

A trail event near Riggins, Idaho with a 53K ultra, a 26K loop and an uphill-only vertical to Challenger Peak. The 53K includes roughly 13,000 feet of climbing while the 26K offers about 6000 feet of elevation gain.

A trail race in Pocatello on May 9, 2026 offering 5K, 10K, a trail half marathon and a 30K on City Creek singletrack with updated routes and notable climbs.

June 2026

Experience a mountain running event in Idaho featuring distances from 23 miles to a 100 mile ultra. Navigate technical trails with significant vertical gain while supporting environmental conservation and community inclusivity.

Trail marathon and half marathon on Boise's Ridge to Rivers Trail System featuring single track, significant climbs and fast descents. Multiple aid stations are placed along each course and a shirt order cutoff is May 30.

A community running event at Ponderosa State Park offering a Kids Mile plus 5 Mile and 7 Mile run or walk on mixed paved and trail surfaces.

Experience mountain trail running at its finest with a variety of distances including a full marathon and half marathon. Join fellow runners for a weekend of off road racing on the scenic slopes of Schweitzer Mountain.

Trail ultramarathons around Challis, Idaho offering 32K, 55K and 108K on high-elevation mountain routes with multiple aid stations, crew access, wildlife, and a finish down Main Street into Challis City Park.

Experience a three event summer trail series at Bogus Basin Ski Resort featuring 4 to 6 mile races on scenic singletrack trails with Grand Prix style scoring.

Trail races near Burgdorf Hotsprings on alpine singletrack offering 30K and 50K routes. The 30K gains about 3500 feet on a clockwise Bear Pete loop; the 50K adds Willow and Jeanette Creek and a climb of Crystal Mountain.

July 2026

Experience a true mountain race through the rugged high altitude terrain of Idaho and Montana. Choose between 100 km and 55 km courses featuring steep descents and technical single track trails.

Donut Dash in Moscow, ID is a six-loop 10K event with solo and relay entries. Each entry receives six donuts and runners eat one donut at the start of each loop while the course runs from the PCEI Stage.

Experience Idahos highest trail race in the rugged Pioneer Mountain range. This high altitude event offers individual distances of 30k 60k and 100 miles through stunning central Idaho wilderness.

Event Overview The Standhope 100 is a 100-mile endurance trail run held on July 25-26. It is described as Idaho's highest trail race, taking place in the remote Pioneer Mountains. The course covers over 23,000 feet of climbing across remote..

Experience the beauty of Bogus Basin at the Boise Front Trail Festival. Choose between a steep hill climb or scenic trail races while supporting local trail conservation in the Boise Foothills.

August 2026

A point to point trail run near Twin Falls, Idaho, the Outlaw is about 1.4 miles longer than a standard half marathon and runs mostly downhill from Diamondfield Jack Campground to Third Fork Campground. The field is capped at 200 runners.

Take on the trails of Moscow Mountain in this summer 10k. The loop course features over 800 feet of climbing for a challenging run. It's a casual, community-focused event as part of the PRR summer series.

A last man standing race on a 1.1 mile loop in Inkom, ID, with 240 ft of elevation gain per loop. Runners must complete each loop within 20 minutes and are removed if they do not return in time.