The Merrell Down & Dirty Obstacle Race is back for a fourth year, and it’s coming to Chicago. On June 1st, participants will gather at Indian Hills Farm for a challenging three or six mile race packed with military style obstacles designed to push athletes to the limit.

The course will take runners across the 91 Highway, deep into the farm, up and down rolling hills and into the main event field where things are guaranteed to live up to the mud run name!

You can register for the Chicago Down & Dirty Mud Run right now, and it costs $75 for the 5k or $85 for the 10k. Races begin between 8am and 10am on the 1st.

The Down & Dirty Mud Run is going to be venues across the United States throughout the year. Here’s the full schedule:

To register for one of the events, just head over to the Merrell Down & Dirty registration site.