Iowa Obstacle Race Calendar 2025-2026

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Explore the best obstacle run in Iowa for 2025-2026! Our updated list features 1 exciting races across the region. Find your next race in Iowa below and join the running community at these great events!

May 2026
The Gladiator Assault Challenge, held at Seven Oaks Recreation in Boone, Iowa, is a premier Midwest obstacle course race testing endurance, speed, agility, strength, and mental stamina. The event features a Full Gladiator Assault Challenge, a 5-7 mil..