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, taking place at the Crosscut Mountain Sports Center in Bozeman, offers a thrilling outdoor experience with various obstacle course races. Participants can choose from multiple race distances, including the Sprint (5K), Super (10K), Beast (21K), and Ultra (50K), each featuring a unique set of obstacles. Additionally, there is a Kids Race for younger participants. Set against the stunning backdrop of the Bridger Mountain Range, this event promises challenging terrain and breathtaking views, making it an exciting adventure for athletes of all levels. 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.