Iowa 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.

Arrowhead Obstacle Trail Run

Neola • 20 Sep 2025

Kids 1 Mile With 10+ Obstacles 5k With 15+ Obstacles

The Arrowhead Obstacle Trail Run is a family-friendly event held at Arrowhead Park near Neola, Iowa. Scheduled for September 20, 2025, it features a 5K trail run with over 15 obstacles and a 1-mile kids' course with more than 10 obstacles. Unlike typical mud runs, this event avoids messy mud pits and water crossings, making it accessible and enjoyable for all ages.

Participants can choose between competitive waves, where all obstacles must be completed, or open waves with optional obstacles. The kids' run is recommended for ages 6-12 and encourages adult chaperones. Proceeds benefit the Pottawattamie County Trails Association.

Registration includes park entry, free parking, and event photos. Visit the organization's website for the most recent information.

Gladiator Assault Challenge

Boone • 16-17 May 2026

5k Charge Elite Full Gladiator Challenge Elite Full Gladiator Challenge

The Gladiator Assault Challenge, held at Seven Oaks Recreation in Boone, Iowa, is a premier Midwest obstacle course race testing endurance, speed, agility, strength, and mental stamina. The event features a Full Gladiator Assault Challenge, a 5-7 mile race with over 30 challenging obstacles including natural and man-made elements like climbing, crawling, balancing, and mud. There is also a 5K Charge, a shorter 3+ mile course with 20-30 obstacles, and a Junior/Parent 5K for ages 9-14 to run with a parent. Participants receive a finisher T-shirt, medal, fruit, and a beer for those 21 and over. The race is self-timed with a finish line clock. Visit the organization's website for the most recent information.