Montana 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.

Montana Spartan Trifecta Weekend

Bozeman • 21-22 Jun 2025

Kids Race 1-3km Sprint 5k ... Beast 21k Ultra 50k

The Montana Spartan Trifecta Weekend, held at the Crosscut Mountain Sports Center near Bozeman, offers a challenging obstacle course experience set in the scenic Bridger Mountain Range. Participants can choose from multiple race distances: Sprint (5K with 20 obstacles), Super (10K with 25 obstacles), Beast (21K with 30 obstacles), and Ultra (50K with 60 obstacles), plus a kids' race featuring 1-3 km with obstacles. The high-altitude course features rugged terrain, spectacular mountain vistas, and diverse wildlife, providing a true test of mind and body. The event fosters a spirited atmosphere ideal for teams and individuals seeking adventure in Montana’s wild beauty. Visit the organization's website for the most recent information.

Zootown Challenge Obstacle Course Race

Missoula • 4 Oct 2025

The ZooTown Challenge Obstacle Course Race, organized by VRTX Fitness, takes place at Washington-Grizzly Stadium in Missoula, Montana. This exciting event features a variety of races catering to all skill levels, including the Griz Double 10k, Expert and Novice 5k races, a ZooTown 3k, a Kids Race for ages 5-12, and an All Abilities race for athletes with disabilities. The event emphasizes community, inclusiveness, and health, with proceeds benefiting Opportunity Resources Inc., a local organization supporting individuals with disabilities. Spectators are welcome, and food trucks will be available for all attendees. Visit the organization's website for the most recent information.