Idaho 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.

Farm Life 5k Trail Run

Idaho Falls • 2 Aug 2025

5k Fun Run

The Farm Life 5k Trail Run is a fun and engaging event taking place at the Bonneville County Fair in Idaho Falls. Participants will enjoy a scenic course that winds through corrals, horse barns, and fields. The event features a 5k Fun Run and a free Grit League Obstacle Course for kids.

All finishers will receive an award, and there will be multiple water stations along the route. Early registration is available at a discounted price, and all participants will receive a coupon for a free breakfast at the Fair. A portion of the entry fees will support the Bonneville County Fairboard's 4H Program. Visit the organization's website for the most recent information.

LC Valley Down and Dirty Mud Run

Lewiston • 23 Aug 2025

1 Mi 3.2 Mi

The LC Valley Down and Dirty Mud Run is a fun, muddy obstacle course event held in Lewiston, Idaho. Suitable for all ages and athletic abilities, participants can choose between a 1-mile or 3.2-mile course that combines cross-country running with challenging obstacles. The event encourages a relaxed, social atmosphere where getting dirty and having fun is the main goal.

It features a mini-mudder category for children aged 10 and under. The race aims to provide a memorable experience for participants, with previous years receiving positive reviews for organization and course enjoyment. The event typically takes place in August, offering a great outdoor activity for families and friends. Visit the organization's website for the most recent information.