Endurance Grid lists 3 obstacle course races in California in October 2026 across 3 cities.
The obstacle course race calendar in California is busiest in October.
Obstacle course races (OCR) combine running over varied terrain with a series of physical obstacles — walls, rope climbs, monkey bars, carries, and crawls. Courses range from a 5K with under 20 obstacles up through 10Ks, half-marathons, and beyond, depending on the organizer and race series.
The barrier to entry is lower than it looks. Most events run open heats designed so beginners can finish — with help on the obstacles when they need it, and strangers often boosting each other over the walls.
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