Idaho Obstacle Race Calendar 2026-2027

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Monthly updates for Idaho

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Explore the best obstacle runs in Idaho for 2026-2027! Our updated list features 3 exciting races across the region. Find your next race in Idaho below and join the running community at these great events!

August 2026
Aug
8-9
Sa - Su

Boise Spartan Trifecta Weekend

5 km 10 km Half Marathon
Conquer raw high desert terrain at the Boise Spartan Trifecta Weekend. Choose from obstacle course races ranging from a 5K Sprint to a 21K Beast, plus kids events and other challenges. The rugged Pence Ranch landscape provides the setting.
Aug
29
Sa

LC Valley Down and Dirty Mud Run

October 2026
Oct
10
Sa

Zombie Mania

5 km
Experience Zombie Mania in Rexburg, Idaho on October 10, 2026, a timed 5K through Nature Park and Eagle Park where volunteers dressed as zombies try to grab your health flags. A fun 1 mile costume run is offered for kids and adults.