Trail Running Calendar Idaho 2025-2026

Dizzy Horse Backyard Ultra is a winter ultramarathon in Idaho Falls, Idaho, held at the Bonneville County Exhibition Hall and Sandy Downs Park. The race is a Backyard Ultra: runners complete a 4.167-mile loop every hour on the hour, until o..

Tackle winter trails at the Wilson Creek Frozen 50k, a scenic race through Reynolds Creek gorge and up to Wilson Peak. Options range from a full 50k to shorter loops so runners of many levels can join the fun.

Soup-In-The-Snow : February 2026 (early February) Soup-In-The-Snow is an informal winter trail event near Irwin, Idaho, held in early February 2026. Entry is free but participants must register on UltraSignup; registration opens December 1,..

Explore volcanic trails at the Spitfire Ultra Trail Challenge in Menan, Idaho on April 18, 2026. Choose from 55K, 30K, 12K or 5K courses that wind over sand, slick rock and sagebrush for a rugged, scenic adventure.

Scout Mountain Ultras is an annual trail running event held the first weekend of June in Pocatello, Idaho. The event offers a range of distances, including a 100-mile race, welcoming runners from first-timers to seasoned ultrarunners. The a..

Run scenic singletrack in Sandpoint at Race the Wolf, a weekend of trail races including a 5 mile, Sky Climb, half marathon and full marathon. Expect rugged terrain, big views and festival vibes June 20 to 21, 2026.

Run the Continental Divide near Salmon, Idaho on scenic high elevation trails with challenging 100K and 55K point to point courses. The 100K is a Western States qualifier and both have UTMB index.

Standhope Ultra Challenge near Ketchum, Idaho, July 24 to 26 features 100 mile, 60K and 30K trail races across the rugged Pioneer range reaching 11,000 feet. Expect remote, technical terrain, hiked aid stations and handcrafted awards.

Standhope 100 is Idaho’s Highest Trail Race, now a 100-mile endurance event set in the Pioneer Mountains. The race, held July 25–26, traces remote wilderness trails with more than 23,000 feet of elevation gain and long stretches between aid..