Oregon 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.

Boise Spartan Trifecta Weekend

Payette • 9-10 Aug 2025

Kids Race 1-3km Sprint 5k Super 10k Beast 21k

The Boise Spartan Trifecta Weekend, held at Tom Pence Ranch in Payette, Idaho, offers a challenging obstacle course racing experience across three distances: the Sprint (5K with 20 obstacles), Super (10K with 25 obstacles), and Beast (21K with 30 obstacles). This event, set in rugged Snake River Plain terrain, tests participants' physical and mental endurance. A kids' race featuring 1-3 km with obstacles is also available, making it family-friendly. Participants can compete individually or as teams, with team registration allowing synchronized start times and savings. The event emphasizes grit, resilience, and transformation, promising a tough yet rewarding adventure for all fitness levels. Visit the organization's website for the most recent information.