Trail Running Calendar Idaho 2025-2026

The Payette Lake Run, held in McCall, Idaho, offers three race distances: 30K, 14K, and 5K. The full 30K course circles Payette Lake, while the 14K starts near North Beach and the 5K near Little Lake on Lick Creek Road. All races begin and end at Brown Park in downtown McCall, providing restroom fac..

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..

The Pocatello Fall Ultra, held in Pocatello, Idaho, is a challenging trail running event featuring multiple race distances: 100K, 60K, 20K, and a kids' race. The ultra courses boast significant elevation gains, with the 100K offering over 10,000 feet and more than 45 miles of single-track trails on..

Race the Rocks Mountain Challenge is a 50K mountain run set in the City of Rocks National Reserve and Castle Rocks State Park near Almo, Idaho. The cross-country course winds primarily on single-track trails amid granite spires, featuring the legendary Log Run—a 1,500-foot ascent in about a mile. Ru..

IMTUF 100, the Idaho Mountain Trail Ultra Festival, returns for its 14th edition, based at Jug Mountain Ranch just south of McCall, Idaho. The festival offers two distances: a 100-mile ultramarathon and a 20-mile race, forming a challenging weekend of mountain trail running. The course uses the same..

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..

Moscow Mountain Madness, organized by Palouse Road Runners, takes place in Moscow, Idaho. The event offers 50K, half-marathon (13.1 miles), and a 5-mile option. Runners traverse the spine of Moscow Mountain on mostly technical single-track trails, with some fast logging roads.The route is described..

Run for the Angels Memorial Run and Family Day is held at Riverstone Park in Coeur d’Alene, Idaho. In its 13th year, the event offers a fun run and walk on a 2.5-mile course along the Centennial Trail with views of the Spokane River. The day features sponsor booths, a memory-making station, a silent..

The Sasquatch Shuffle is an annual trail running event held in McCall, Idaho, featuring multiple race distances including 50K, 30K, 20K, a new 50/50 challenge, and a Triple Threat option where participants run three distances over two days. The course consists of a scenic 6.79-mile loop through Pond..

The Dizzy Horse Backyard Ultra is a unique winter ultramarathon held in Idaho Falls, Idaho, featuring a 4.167-mile loop through a diverse course of desert, grass, horse-race tracks, gravel roads, and occasional snow. Participants run one loop every hour until only one runner remains, making it a tes..

Spitfire Ultra Trail Challenge, held near Menan, Idaho, at North Menan Butte, an extinct volcano, offers four distance options: 55K, 30K, 12K, and 5K. Runners traverse a dramatic mix of terrain on the volcano's west and east flanks, along the rim, and through its crater heart, with surfaces ranging..

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 atmosphere emphasizes community, inclusivity, and environment..

Race the Wolf is an outdoor trail-running event staged in Sandpoint, Idaho. The weekend offers multiple distances: a Trail Marathon, a Trail Half-Marathon, a 5 Mile Trail Run, and the Sky Climb, appealing to a range of endurance athletes. The courses are described as trail-based, typically featuring..

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..

Standhope 100 is Idaho’s highest trail race reimagined as a 100-mile endurance run. Held in the rugged Pioneer Mountain Range, the single-loop course fully circumnavigates the high-alpine terrain, delivering breathtaking views and demanding climbs. Runners rely on 12 fully stocked aid stations, a cu..