Trail Running Calendar Idaho 2026-2027

Trail ultraruns in the Pioneer Mountains of Central Idaho offering 100 mile, 60K and 30K distances over rugged terrain. The two day event is noted for scenic views, steep climbs and long descents.

A 100 mile backcountry trail race in the Pioneer Mountains of Idaho with over 23,000 feet of climbing, remote sections, twelve staffed aid stations, and spot tracking for runners.

Two days of trail racing at Bogus Basin with a Friday hill climb plus 5 mile and 10 mile races on Saturday, supporting Ridge to Rivers and youth trail programs.

A farm themed 5k at the Bonneville County Fair with a flat course, multiple water stations, finishers awards, and a free looped kids obstacle course.

A 5K trail run through Montour Wildlife State Park in Emmett, Idaho, that follows mixed surfaces and passes the remains of a former town. The course is about 70% dirt trails and 30% asphalt with some technical sections.

Follow the path of a historic outlaw on this mostly downhill point to point race. Run through the Sawtooth National Forest on a mix of rugged jeep trails and ten miles of single track forest paths.

A low key roughly 6.2 mile trail loop on Moscow Mountain with over 800 feet of climbing, starting and finishing at the Warnick Road parking area.

At Tom Pence Ranch on Aug 8-9, 2026, the Boise Spartan Trifecta Weekend features Sprint, Super and Beast obstacle races, kids races, an obstacle workshop, and spectator access.

A memorial 5K on August 12, 2026 at the Inkom Last Man Standing Trail, covering 3.3 miles in three loops. The evening event brings the community together to remember the honoree and support his family.

A Last Man Standing race on a 1.1 mile loop in Inkom, ID, held on a family property near Lavender Lane Lavender Farm and Leapknot Coffee Roasters. Runners must complete each loop within 20 minutes and laps continue until one runner remains.

A multi-distance trail event in Harriman State Park near Island Park, ID, featuring a new Kid's 1k, scenic forest and meadow courses, on-course aid stations, cupless provisions, finishers medals and limited field with a waitlist.

A two day trail event at Silver Mountain Resort in Kellogg, Idaho featuring a 13K with over 2,000 feet of climbing and a 2 mile course, gondola access to the start, a vendor village, swag and giveaway prizes.

Trail races of 5K and 12K in the Boise foothills on August 22, 2026, with cash prizes for the 12K and proceeds supporting Bogus Basin Nordic Team.

The 3rd Annual LESS Society Table Rock Hike in Boise follows the Table Rock Trail for about 3.8 miles with roughly 900 feet of gain; proceeds fund scholarships for Idaho students.

A community mud run at Lewiston Community Park each August featuring climbing, crawling, muddy obstacles and a Mini-Mudder for kids. The event reports thousands of participants, local charity donations, and many volunteer roles.

A multi-distance road and trail event in McCall, ID on September 6, 2026 with 30K, 14K and 5K courses starting and finishing at Brown Park. Bus transport to offsite starts, staffed aid stations, and awards for top finishers.

A Last Man Standing race in Eagle, Idaho where competitors repeat a 4.167 mile loop each hour until one lasts longer than the rest. A 3 Loop Challenge is available and certain distances count toward Idaho Trail series jackets.

A set of organized runs and a walk in Twin Falls along the Snake River Canyon on 12 September 2026, featuring a 7.5 miles rim course across Perrine Bridge and a 3.5 miles downhill half race; no pets or strollers allowed.

A trail event on September 12, 2026 around the volcanic Crater Rings near Mountain Home, Idaho. Options include a 10K loop on a jeep road or a 2.9 mile out and back to the East Crater viewpoint, with hydration stations and awards.

A 100-mile mountain ultramarathon held September 19-20, 2026, starting and finishing at Jug Mountain Ranch near McCall, Idaho, following the SUPERCOURSE used 2020-2025. Trail use is permitted by the Payette National Forest and Idaho Departm..