Idaho
Idaho Trail Running Calendar 2026-2027
Explore the best trail runs in Idaho for 2026-2027! Our updated list features 20 exciting trail runs across the region. Find your next trail run in Idaho below and join the trail community at these great events!
October 2026
Trail running in Ketchum on October 3, 2026 offering a forested half marathon and a 55K ultra with substantial elevation and alpine terrain.
Trail races on Moscow Mountain with 5 mile, half marathon and 50k courses on mostly technical single track and scenic Palouse views.
A 15th annual memorial fun run and family day at Riverstone Park in Coeur d'Alene, raising awareness and funds for NISSA with a scenic 2.5 mile course.
A 5 km loop through Nature and Eagle Park where volunteer zombies try to steal runners' flags; includes a 1 mile costume run and youth categories.
A fall fundraising trail event in Ponderosa State Park near McCall, Idaho offering 20K, 30K and 50K looped courses with varied single-track and Payette Lake views.
A Halloween themed road run at Massacre Rocks State Park featuring mixed surfaces, costume prizes, campsite rentals, and proceeds benefitting Rockland High School XC.
Halloween morning trail event in Swan Valley, Idaho offering 50K and half marathon distances with notable elevation gain and a theme drawn from local folklore.
November 2026
A Run to InspireKidz features a two hour in person lap challenge at Cynthia Mann Elementary and a flexible virtual option, with all registration proceeds supporting InspireKidz.
An hourglass-style endurance event in Meridian ID where rounds shorten each lap and athletes choose Run, Hybrid, Ruck, or Walk formats.
January 2027
Test your endurance in Idaho Falls at this winter backyard ultra. Complete 4.167 miles every hour on a varied terrain course until only one runner remains at the Bonneville County Exhibition Hall.
Experience a winter trail race through the Reynolds Creek gorge and Wilson Peak in Idaho. Choose between 10 mile, 20 mile, or 50k distances featuring up to 6000 feet of elevation gain in the stunning Wilson Creek trail system.
April 2027
Trail races on North Menan Butte in Menan, Idaho featuring volcanic terrain, caldera rim views and distances from 5k to 55k each April.
May 2027
Trail races of 5K, 10K, half marathon and 30K on City Creek singletrack near downtown Pocatello with updated routes and rolling climbs.
June 2027
Two days of races in Sandpoint, Idaho with marathon, half marathon, 10K and 5K along Lake Pend Oreille plus a waterfront festival with vendors and music.
Endurance runs in Challis, Idaho offering 108k, 55k and 32k courses through remote landscapes along the Salmon River and Frank Church Wilderness.
A two day mountain trail event at Schweitzer Mountain Resort offering marathon, half marathon, 5 mile and Sky Climb courses with aid stations and marked trails.
July 2027
Backcountry ultramarathon in Ketchum, Idaho on July 24 and 25 2027 offering 100 mile, 60K and 30K courses with dedicated support for mother athletes.
A scenic 5K through Montour Wildlife State Park that blends dirt trails and short paved sections while passing the remains of a flooded town.
August 2027
Multi-day obstacle race weekend at Tom Pence Ranch in Payette, ID on Aug 07 and 08, 2027 featuring Sprint, Super, Beast and kids races.
Repeated 1.1 mile loops on a hilly private course in Inkom, ID, with 20 minute intervals per lap; runners are eliminated until only one remains.