Washington Mud Run & Obstacle Race Calendar 2025-2026

If you're an adrenaline junkie, fitness enthusiast, or simply seeking a thrilling outdoor adventure, you've arrived at the perfect destination. Our meticulously curated calendar is your gateway to the most exhilarating and challenging mud runs and obstacle races taking place in 2025 and 2026.

Prepare to conquer mud-slicked trails, scale towering walls, navigate through grueling obstacles, and push your physical and mental boundaries. Our mission is to provide you with all the essential information you need to plan your race year, including dates, locations, race details, and registration information.

Paper Maker OCR

Camas • 16 Aug 2025

The Paper Maker OCR will take place in Camas on Saturday 16 August 2025. You can run 4 kilometers.

The Seattle North Spartan Event Weekend takes place at Meadow Wood Equestrian Center in Snohomish, Washington, a scenic 900-acre former Arabian horse farm surrounded by evergreen forests and rivers. The event features a Sprint 5K with 20 obstacles and a Super 10K with 25 obstacles, both designed to challenge participants with classic Spartan obstacles like the Atlas Carry, A-Frame Cargo Climb, Barbed Wire Crawl, and Spear Throw. The course offers flat, fast trails suitable for beginners and experienced racers alike. Family-friendly Kids Races are also available. Finishers earn medals, finisher tees, and enjoy a vibrant festival atmosphere with music and celebration. Visit the organization's website for the most recent information.