Idaho
Idaho Trail Running Calendar 2026-2027
Explore the best trail runs in Idaho for 2026-2027! Our updated list features 21 exciting trail runs across the region. Find your next trail run in Idaho below and join the trail community at these great events!
October 2027
Trail races near Ketchum Idaho featuring a half marathon and a 55K ultra on marked single track loops with substantial elevation gain and staffed aid stations.