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

4.5 "ish" Mile Course

The Paper Maker OCR is an annual obstacle course race held in Camas, Washington, at Lacamas Park. Scheduled for August 16, 2025, this event features a challenging 4.5-mile course that winds through scenic, forest-lined trails of the Pacific Northwest. Participants face 10 exciting obstacles designed to test endurance and speed, with additional surprises along the way. The race offers competitive and open waves, with cash prizes awarded to the top male and female racers. Beyond the race, attendees can enjoy local food vendors, music, and a post-race party, all supporting small community businesses and creating a festive atmosphere for racers and spectators alike. Visit the organization's website for the most recent information.

Seattle North Spartan Event Weekend

Snohomish • 2-3 May 2026

Kids Race 1-3km Sprint 5k Super 10k

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.