Trail Running calendar near Mountain Home 2025-2026

If You're Not First You're Last is a unique endurance running event held in Eagle, Idaho, featuring a challenging 4.167-mile loop course. The race tests participants' stamina and grit rather than speed, as runners must complete each loop within an hour and be ready to start the next loop on the hour..

The RIM2RIM RACE4HOMES is a challenging 7.5-mile running and walking event held in Twin Falls, Idaho, at the Blue Lakes Country Club. Participants experience the scenic yet demanding terrain of the Snake River Canyon, featuring significant climbs and descents. The course includes crossing the iconic..

Crater Crawl, held on Main Cinder Butte Road in Mountain Home, Idaho, offers two race distances: a challenging 6.2-mile loop around two adjacent, symmetrical volcanic pit craters known as Crater Rings, and a 2.9-mile out-and-back option with views of the east crater. Located about 8 miles northwest..

Bogus 50/50 is a Boise, Idaho trail ultramarathon with three distances: 50-mile, 50K, and 27K. All races start and finish at Fort Boise parking lot in the lower Boise Foothills, showcasing Boise’s premier single-track trails such as Dry Creek and Shingle Creek. The 50M winds through climbs for about..

Legends Never Die is an endurance trail event held in Oregon Gulch, near Ketchum, Idaho, in the Sun Valley area, experiencing the vibrant colors of fall. It offers two distances: a Half Marathon of 13.1 miles with 7,600 ft high point and about 2,372 ft of elevation gain, and a 34-mile Ultra/55K with..

The Standhope Ultra Challenge is a backcountry ultramarathon in the Pioneer Mountains near Ketchum, Idaho. The event, held July 24–26, 2026 (with the 100 Mile Run July 25–27), offers three rugged distances: 100 Mile, 60K, and 30K, all on high-alpine terrain. Runners face remote, technical trails and..