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!
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.
January 2027
A winter backyard ultra in Idaho Falls where runners complete 4.167 mile laps each hour until only one runner remains, with indoor transition and aid upgrades.
Winter trail running on the Wilson Creek trails near Boise on January 23, 2027, offering 50k, 20 mile, and 10 mile courses with significant elevation gain.
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 race in Pocatello offering 5K, 10K, a trail half marathon and a 30K on City Creek singletrack trails.
June 2027
Two days of racing in Sandpoint, Idaho with marathon, half marathon, 10K and 5K routes along Lake Pend Oreille and a lakeside festival with vendors and live music.
Timed loop trail run at Ponderosa State Park in McCall Idaho with 6 and 12 hour options and 4.79 mile loops, held as a fundraiser for park trails.
Endurance runs in Challis, Idaho offering 108k, 55k and 32k courses through remote landscapes along the Salmon River and Frank Church Wilderness.
Mountain trail races at Schweitzer Mountain Resort on June 19 to 20, 2027, with marathon, half marathon, 5 mile and Sky Climb on marked singletrack and ridge routes.
July 2027
A one way trail race on July 17, 2027 from Riggins to McCall, ID with a 105K main event and a concurrent 35K option, featuring significant climbing and crew support.
Backcountry ultramarathon in Ketchum, ID with 100-mile, 60K and 30K courses through high alpine terrain and specific race-day 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
Obstacle course weekend in Payette, Idaho featuring Sprint 5K, Super 10K, Beast 21K and kids races across volcanic high desert terrain.
A Last Man Standing race in Inkom, ID on a 1.1 mile loop with 270 ft elevation gain per lap and repeated 20 minute time windows until one runner remains.
Trail races in Harriman State Park near Island Park, ID, offering 50K, 25K, 10K and 1K on forest and meadow trails with on-course aid and included lunch.
Trail runs and a vendor expo at Silver Mountain Resort in Kellogg, Idaho on August 15, 2027, with a half marathon, a 13K (2000+ ft climb), and a 5K.
September 2027
Multi-distance race in Malad City, Idaho on September 11, 2027 offering chip-timed 5K, 10K, half and full marathons plus a 1 Mile community run.
Gravel running event at Priest Lake on September 18, 2027 offering 50 km, marathon, half and 10 km courses on marked forest and lakeshore roads.
October 2027
Trail half marathon and 55K ultra near Ketchum, Idaho on October 2, 2027, featuring forested single track and high alpine terrain.