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 Trail Run

Neola • 19 Apr 2025

5 km 10k (2 Laps of 5k) 4 Hour Enduro

The Arrowhead Trail Run is set to take place at Arrowhead Park near Neola, Iowa, on April 19, 2025. Participants can choose from a 5k, 10k, or a 4-hour Enduro run, with medals awarded to the top finishers in each category. This non-profit event supports the Pottawattamie County Trails Association, and all proceeds from registration are considered donations.

Runners can enjoy scenic views while jogging, walking, or hiking at their own pace. An event T-shirt is available for purchase during registration. The event promises a fun and inclusive atmosphere for all participants. Visit the organization's website for the most recent information.

Arrowhead Obstacle Trail Run

Neola • 19 Apr 2025

5 km 10k 4 Hour Enduro

The Arrowhead Obstacle Trail Run is an exciting running event held at Arrowhead Park near Neola, Iowa, featuring various distance options including a 5k, 10k, and a 4-hour Enduro. Scheduled for April 19, 2025, this event aims to promote outdoor fitness while benefiting the Pottawattamie County Trails Association. Participants can enjoy the scenic trails of the park while challenging themselves with obstacles along the way. Registration is currently open, and photos from previous events are available online for participants and spectators to view. Visit the organization's website for the most recent information.

Gladiator Assault Challenge

Boone • 17-18 May 2025

5k Charge (3+ Miles) Full Gladiator Assault Challenge (5-7 Miles)

The Gladiator Assault Challenge is a premier endurance event held in Boone, Iowa, featuring a series of physically demanding obstacle courses designed to test participants' speed, agility, strength, and mental stamina. The event includes various race options, such as the Full Gladiator Assault Challenge (5-7 miles with over 30 obstacles), an Elite Full Gladiator Challenge, a 5K Charge, and a Junior/Parent 5K. Participants receive a finisher t-shirt, medal, and refreshments. The challenge is suitable for individuals and teams, making it a fun and competitive experience for all ages. Visit the organization's website for the most recent information.