Trail Running Calendar Idaho 2025-2026

Scout Mountain Ultras is an annual trail running event held in early June in Pocatello, Idaho, featuring challenging courses through the Bannock and Pocatello mountain ranges. The race offers four distances: 100 miles (102.2 miles with 22,276 feet elevation gain), 50 miles, 50 kilometers (35.5 miles..

The Sharlie Shuffle is an annual timed trail running event held in McCall, Idaho, at Ponderosa State Park. Scheduled for June 7, 2025, it offers 6-hour and 12-hour race options on a scenic 4.79-mile loop featuring varied terrain including rolling and rocky trails, stairs, boardwalks, single-track, d..

The 48th Annual Ponderosa Park Run, held in McCall, Idaho, offers a family-friendly running event with three race options: a 1-mile Kids Run, a 5-mile Run/Walk, and a 7-mile Run/Walk. The courses feature a mix of paved and dirt roads along with single-track trails, providing varied terrain for parti..

The River of No Return Endurance Runs, held in Challis, Idaho, offers challenging trail races of 32K, 55K, and 108K distances. Set against Idaho’s stunning wilderness, the courses feature significant elevation gains—up to 17,600 feet for the 108K—with climbs reaching over 10,000 feet. Runners traver..

The PRR Summer Series 10K - Headwaters is a scenic running event held in Moscow, Idaho, starting at the Headwaters Trailhead. This fun and low-key race covers just over 5 miles (slightly longer than a traditional 10K) along a popular local trail on Moscow Mountain, featuring approximately 700 feet o..

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, held in Boise, Idaho, takes runners through the scenic Ridge to Rivers Trail System in the Boise foothills. Now in its ninth year, the marathon features a challenging course with significant climbs and fast descents on single-track trails. A special hi..

The Brundage Mountain Summit Cat Track event in McCall, Idaho, offers two scenic mountain runs: a challenging 10K uphill and downhill race and a 5K downhill run. The 10K course ascends 3.1 miles with a 1,640-foot elevation gain to Brundage Mountain's summit, providing stunning 360-degree views of Pa..

The Donut Dash 10K in Moscow, Idaho, is a fun and unique running event hosted by Palouse Road Runners as part of their Summer 10k Series. Participants, either solo or in teams of 2, 3, or 6, complete six one-mile loops starting and finishing at the Palouse-Clearwater Environmental Institute (PCEI)...

The McCall Trailrunning Classic is an annual trail running event held in the Payette National Forest near Burgdorf Hotspring, Idaho. Established in 2012, the race features two distances: a 30K and a 50K, both run on challenging alpine singletrack trails originally part of the IMTUF100 course. The 30..

The Beaverhead Endurance Runs feature two challenging races: a 100K and a 55K, taking place in Salmon, Idaho. These point-to-point races primarily traverse the Continental Divide National Scenic Trail, showcasing stunning landscapes that separate Idaho's Lemhi River Valley from Montana's Big Hole Va..

The Standhope 100 is Idaho’s highest trail race, offering a challenging 100-mile endurance run around the Pioneer Mountain Range. Scheduled for July 25-27, 2025, the race features a single-loop course with significant elevation gains, technical terrain, and high-altitude views. Participants can expe..

The Standhope Ultra Trail is a challenging and scenic mountain race held in the Pioneer Mountains near Ketchum, Idaho. The event features multiple distances, including a grueling 100-mile run, a 60K, and a tough 30K option that covers the latter half of the 60K course. Runners face rugged terrain wi..

The Owyhee 50/50 Night Run is a nighttime ultramarathon event held near Homedale, Idaho, featuring 50-mile and 50-kilometer distances. Starting at 8 PM, runners traverse out-and-back courses on dirt county roads, BLM roads, and double track paths, with the 50K covering 25 kilometers out and back, an..

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

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 charitable cause, as pr..

The PRR Summer Series - Warnick 10k is a scenic trail running event held on Moscow Mountain in Idaho. The course is a roughly 6-mile loop starting and finishing at the Warnick Road parking area, featuring over 800 feet of elevation gain with varied terrain including climbs and descents. Runners trav..

The Inkom Last Man Standing 1.1 is a unique endurance running event held on a private 1.1-mile loop in Inkom, Idaho, featuring a challenging course with 240 feet of elevation gain per loop, including rolling hills and steep climbs. Inspired by a local runner's daily trail, participants must complete..

The Harriman 25K/50K Trail Run is a well-curated trail running event held annually at Harriman State Park near Island Park, Idaho. The race offers three distances: an 8.1-mile run, a 25K, and a 50K (two laps of the 25K course). The course features beautiful, pine needle-covered single-track trails w..

The Foothills XC12K is an exciting cross-country running event scheduled for August 23, 2025, in Boise, Idaho. Participants can choose between two courses: a challenging 12K and a shorter 5K, both set against the stunning backdrop of the Boise Foothills. The race starts at the Military Reserve, offe..