Trail Running Calendar Idaho 2025-2026

The Pulse Endurance Runs is a premier timed running event held at Eagle Island State Park in Idaho, featuring a scenic 2.5-mile dirt trail loop along the Boise River. Participants can choose from various race formats, including 48-hour, 24-hour, 12-hour, and 6-hour options, as well as a 100-mile fix..

The Spitfire Ultra Trail Challenge, taking place on April 19, 2025, invites participants to test their endurance in a stunning geological setting at North Menan Butte, an extinct volcano. The event features multiple race distances, including 55K, 30K, 12K, and 5K, allowing runners of various skill l..

The Weiser River 50K Ultra & Relay is a scenic running event taking place along the Weiser River Trail in Idaho. This point-to-point race covers 50 kilometers (31.07 miles) from Council to Midvale, featuring a mostly flat course ideal for runners of all skill levels. Participants can compete in vari..

The Heavens Gate Marathon and Half Marathon, taking place on May 3, 2025, in Riggins, Idaho, features challenging courses of 20 miles and 15K, with significant elevation gains of 7500 and 4000 feet, respectively. Participants can expect stunning canyon trails and breathtaking views of the surroundin..

The Over the Top Trail Race, organized by the Pocatello Running Club, will take place on May 10, 2025, in Pocatello, Idaho. This popular event features a stunning course through the City Creek Trail System, offering scenic views, wildflowers, and diverse terrain. Participants can choose from multipl..

Scout Mountain Ultras is an annual trail running event held in Pocatello, Idaho, celebrating the trail running community. Scheduled for the first weekend of June, participants can choose from various distances, including 100 miles, 50 miles, 50 kilometers, and 23 miles, all featuring challenging cou..

The Sharlie Shuffle is an annual fundraising running event held in Ponderosa State Park, McCall, Idaho, featuring 6-hour and 12-hour timed races. Participants can run as many loops as they desire on a scenic 4.79-mile course that includes diverse terrain and beautiful views of Payette Lake. The even..

The River of No Return Endurance Runs, taking place in Challis, Idaho, offers a thrilling experience for runners with three challenging distances: 32K, 55K, and 108K. Participants will navigate diverse terrains, including significant mountain climbs exceeding 9,000 feet, while enjoying breathtaking..

Race the Wolf is an exciting running event taking place in Sandpoint, Idaho, from June 21 to June 22, 2025. The event features a variety of races, including the Race The Wolf Trail Marathon, Trail Half-Marathon, a 5 Mile Trail Run, and the Sky Climb. Participants can enjoy the scenic trails while ch..

The Dirty Dog Trail Marathon and Half Marathon is set to take place in Boise, ID, on June 28, 2025. Celebrating its 9th year, the event features a challenging marathon course with significant climbs and fast descents, while the half marathon offers a mix of single track trails and dirt road sections..

The Beaverhead Endurance Runs feature two challenging races: a 100K and a 55K, taking place in Salmon, Idaho. Both events primarily traverse the scenic Continental Divide National Scenic Trail, showcasing breathtaking views and diverse terrain, including climbs, descents, and technical sections. The..

The McCall Trailrunning Classic, a cherished tradition since 2012, takes place in the scenic Payette National Forest near Burgdorf Hotsprings, Idaho. Participants can choose between two challenging distances: a 30K and a 50K, both featuring stunning alpine singletrack trails. The event starts and fi..

The Standhope Ultra Trail is a challenging and scenic running event held in the Pioneer Mountains of Ketchum, Idaho, from July 25 to 27, 2025. Participants can choose from various distances, including a 100-mile run, a 60K, and a 30K option, each offering unique challenges and breathtaking views. Th..

The Standhope 100 is Idaho's highest trail race, featuring a challenging 100-mile endurance run that takes place from July 25-27, 2025. This single-loop course circumnavigates the Pioneer Mountain Range, offering runners breathtaking high-altitude views and demanding ascents. Participants can expect..

The Farm Life 5k Trail Run is a fun, farm-themed running event taking place at the Bonneville County Fairgrounds in Idaho Falls. Participants will enjoy a scenic 5k course that winds through corrals, horse barns, and fields. The event features a 5k Fun Run and a free Grit League Obstacle Course for..

The Boise Front Trail Festival is a running event scheduled for August 2, 2025, at Bogus Basin Ski Resort in Boise, Idaho. Participants can choose between two courses: a 5-mile and a 10-mile run. This festival not only promotes fitness and outdoor activity but also supports a good cause, as proceeds..

The Inkom Last Man Standing 1.1 is an exciting running event set on a scenic 1.1-mile loop in Inkom, Idaho, featuring an elevation gain of 240 feet. Inspired by Nate Solomon's morning runs, this unique race challenges participants to complete each loop within 20 minutes, with the clock restarting af..

The Foothills XC12K is an exciting cross-country running event scheduled for August 23, 2025, in Boise, Idaho. Participants can choose between a challenging 12K or a 5K course, both set against the stunning backdrop of the Boise Foothills. The race begins at the Military Reserve and promises a commu..

The Harriman 25K/50K Trail Run, scheduled for August 23, 2025, is a premier trail running event held at Harriman State Park near Island Park, Idaho. Celebrating its eighth year, the race offers a unique experience for both seasoned and novice runners, featuring meticulously designed courses that sho..

The Pocatello Fall Ultra is an exciting running event taking place in Pocatello, Idaho, featuring multiple race distances including 100K, 60K, and a 15-20 mile option. Participants can expect challenging courses with significant elevation gains, primarily on single-track trails. The event offers chi..