Trail Running Calendar Idaho 2026-2027

A free, annual 8.6-mile group run on snowy trails near Lower Palisades Lake in Irwin, Idaho, organized by the Idaho Falls Trail Runners with a post-run potluck where participants bring a dish and share warm soup.

A family oriented snowshoe event at Western Pleasure Guest Ranch in Sandpoint Idaho featuring competitive and untimed recreational 5K and 10K races plus a free Buckaroo race for young children and handcrafted awards.

Timed ultrarunning on a flat 2.5 mile dirt loop at Eagle Island State Park with 48, 24, 12 and 6 hour options, a 100 mile distance, and a 100 mile relay for teams up to five.

Trail races on North Menan Butte offering 5k, 12k, 30k, and 55k routes over volcanic terrain with rim and caldera sections and views of the Tetons and Snake River. Held April 18, 2026.

A 50K point to point run along the Weiser River Trail from Council to Midvale, with a 50K relay for teams of 2 to 5. The converted railroad bed features stony ballast, dirt and some paved crossings with minimal elevation change.

Community Earth Day in Sandpoint with a 5 mile run/walk and an 8K run/walk along the Ponderay Bay Trail. Vendor stalls take place at City Beach Park and proceeds support local parks and wildlife conservation.

Trail races in the Seven Devils near Riggins, Idaho, including a 53K ultra, a 26K loop, and a steep vertical summit race with significant elevation gain and on-course aid stations.

A trail race in Pocatello, ID on May 9, 2026 with 5K, 10K, a trail half marathon and a 30K on City Creek singletrack. Route updates and an updated map reflect new measured distances, with rollovers allowed and no bib transfers.

A two day trail ultramarathon near Pocatello, Idaho offering four distances from 23 miles to 100 miles with substantial mountain ascent. The event highlights environmental stewardship and reserves at least half of entries for women, femme a..

Trail marathon and half marathon in Boise on the Ridge to Rivers Trail System with single-track and dirt road sections, big climbs, and aid stations. A $100 prize awaits the first man and woman up the Hard Guy climb.

A two-day mountain trail event at Schweitzer Mountain Resort near Sandpoint, Idaho featuring a marathon, half marathon, 5 mile trail run and a Sky Climb with mixed two-track and singletrack terrain.

Trail ultramarathons in Challis, Idaho offering 32K, 55K and 108K courses with mountain climbs, mixed trail surfaces and multiple aid stations. Crew access and a final mile into town are part of the race experience.

Three evening trail races at Bogus Basin on June 26, July 10 and July 24 with single track courses of about 4 to 6 miles, Grand Prix style scoring, and bundle discounts plus a customized hat for participants.

Run the rugged Continental Divide on July 11 in Salmon, Idaho with point to point 100K and 55K options that traverse high, technical trail between Idaho and Montana. The 100K is a Western States qualifier and both races qualify for UTMB.

Join the Standhope Ultra Challenge July 24 to 26 in the Pioneer Mountains near Ketchum, Idaho for three remote, high elevation trail races on technical terrain. Expect big climbs, rapidly changing mountain weather, and a handcrafted finishe..

Standhope 100 is a 100 mile mountain trail race in Idaho on 25 to 26 July 2026, with over 23,000 feet of climbing through the Pioneer Mountains, long sections between aid, spot trackers, and remote backcountry conditions.

Two days of trail events at Bogus Basin featuring a steep hill climb, a 5 mile race, and a 10 mile race that climbs over 2,000 feet. Proceeds support Ridge to Rivers and 5 and 10 mile finishers receive a shirt and medal.

A point to point mostly downhill trail run near Twin Falls Idaho that is about 1.4 miles longer than a half marathon. The course starts at Diamondfield Jack Campground and finishes at Third Fork Campground with one aid station and a 200 run..

Run the Foothills XC12K on August 22 in the Boise Foothills with 12K and 5K cross country courses supporting the Bogus Basin Nordic Team. Scenic trails, friendly competition, and a community run by volunteers.

A mountain trail ultramarathon near McCall, Idaho offering 100 mile and 20 mile courses on the IMTUF SUPERCOURSE. The race is a qualifier for Hardrock 100 and Western States 100 and requires advanced mountain experience.