Running Dirty obstacle races, mud run, and OCR information, distance, cost, dates, calendar, discounts, obstacles, reviews, and more

Use discount code MG45 for 45% off your Running Dirty registration!!!!

Join Running Dirty and find out if you have what it takes to dominate a 4-mile obstacle filled mud run that will push you to the brink on every level- fitness, toughness and athleticism. 4 Miles, 23+ Navy Seal Inspired Obstacles and an Epic After Party. Show us your Grit and we’ll show you what Glory tastes like.

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Running Dirty Reviews from the Community

Average rating: 2 / 5 from 13 reviews.

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Jul 23, 2014 by Chuck Ruger

Was impressed for being a first time event. 4 miles with roughly 24 obstacle means not much distance running. The cargo net had an insane wait but was worth it. Can't wait to to do it again in a couple weeks. I look forward seeing the improvements this year.

Apr 10, 2014 by Richie D

Running in the Maryland race again! We had a blast last year! Lots of mud and different obstacles. The farm was beautiful and the after party was fun as well. Great event!

Aug 06, 2013 by Holly Campbell

The obstacles that they had were great. Started in 10am wave and had about a 20 min wait at cargo net, but no waits anywhere else. They did have the advertised number of obstacles but many of the unique ones listed their website were not there. We did not see Hanging Tough, The Gauntlet, Arachnaphobia, Dead Man's Crawl, Firing Squad, Pile Drivers, Dirty Slip N Drip, Backbreaker, Ankle Breaker, Hazed and Dazed, and the Hell Mile was missing Wet and Sandy, Rope Swing, Cold and Miserable. The person working the No Man Left Behind didn't tell anyone when or how far to carry someone, he just allowed us to run straight through. It was a good time but it could have been so much better with more variety in the obstacles.

The Ultimate Mud Run, Obstacle Race and Adventure Race Guide , USA 2.0 5.0 13 13 I did it and i like it alot! We where very happyEvery body there was so nice it really was a great experience.