Terrain Mud Run obstacle races, mud run, and OCR information, distance, cost, dates, calendar, discounts, obstacles, reviews, and more

Terrain Mud Runs challenge you both physically and mentally with over 20 obstacles! Choose a 5k or 10k option, and after your race party at the finish line with friends, family, mud and views of the obstacles you just conquered! You’ll be proud when you finish your race with us. You’ll sweat. You’ll get dirty. You and your friends will have the time of your life.

Make terrain Your race, Conquer Your Terrain!

Kid's races vary in distance and age categories from location to location, so be sure to check our website for more information on Terrain Mud Runs for the whole family!

Upcoming Terrain Mud Run Events

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  • Race discount More info
  • August 26, 2017
    Denver Colorado Terrain Racing Mud Run 2017
    The Recess Factory, Erie, CO, United States
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  • September 16, 2017
    Richmond Virginia Terrain Race Mud Run 2017
    Richmond Raceway, Richmond, VA, United States
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  • September 23, 2017
    Washington DC Terrain Race Mud Run 2017
    Rosecroft Raceway, Fort Washington, MD, United States
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  • September 30, 2017
    Chicago Illinois Terrain Race Mud Run 2017
    Chicagoland Speedway, Joliet, IL, United States
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  • October 07, 2017
    Las Vegas Nevada Terrain Racing Mud Run 2017
    Bootleg Canyon Basin, Boulder City, NV, United States
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  • October 22, 2017
    Virginia Beach Virginia Terrain Racing Mud Run 2017
    Virginia Beach Sportsplex, Virginia Beach, VA, United States
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  • October 28, 2017
    Phoenix Arizona Terrain Racing Mud Run 2017
    Rawhide Western Town, Chandler, AZ, United States
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  • November 04, 2017
    Myrtle Beach South Carolina Terrain Racing Mud Run 2017
    Myrtle Beach Speedway, Myrtle Beach, SC, United States
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  • November 18, 2017
    Irvine California Terrain Racing Mud Run 2017
    Oak Canyon Park, Silverado, CA, United States
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  • December 16, 2017
    Jacksonville Florida Terrain Racing Mud Run 2017
    Jacksonville Equestrian Center, Jacksonville, United States
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Browse our calendar of previous mud runs, mud races & obstacle races for Terrain Mud Run

Terrain Mud Run News & Featured Reviews

Terrain Mud Run Reviews from the Community

Average rating: 3.45 / 5 from 31 reviews.

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Loved it!

Jul 03, 2017 by Lauren

I raced the elite heat and loved it! The obstacles were fun and challenging and loved the mandatory obstacle completion for the elites. I don't really understand the negative reviews. Perhaps those people have never shelled out $200 for a Spartan. Terrain offers a budget-friendly OCR option that is professionally run and well organized. Many of the races are absurdly expensive so I will gladly continue supporting and attending Terrain Races, where the prize money rivals the other races and the entry is a fraction of the cost.

Jul 02, 2017 by SBK

Elite Racers... Don't even bother. Not my first OCR and upon arriving, the disorganization was obvious. You have to wait in yet another line and physically sign waivers even though they sent emails prior to the race to electronically sign -- What was the point, then? There was music but no DJ, extremely limited sponsors and food vendors, not really a hyped up 'party' atmosphere so there was little desire to hang out before/after your race, the changing tents were tiny and NOT secure whatsoever (entrance flaps completely open with no way to securely close them) and were located at the entrance of the event so everyone can see both men, women, and children changing! That is unacceptable. The race itself was not very good. You start in a pool of water (which reeked of urine by the way) and the obstacles weren't too challenging, with some being repeated multiple times along the course. Good luck having your picture taken, too. I counted TWO photographers the entire course. The volunteers were sparse and there were many unmanned obstacles. No verification for bag retrieval, t-shirts, and race type. Basic and cheap white race t-shirt.

All in all, save your money and go for a more reputable and organized OCR.

Look Out Below...

May 28, 2017 by MKS

This was my first OCR run, so I'm not basing it off expectations of previous races. Overall, I had a good time. Starting in a pool of water seemed very strange as it's not an obstacle and in Arizona, you dry off extremely fast before you actually get to the first real one. The name says it all, we ran through desert brush and dry washes full of sand, so you really do need to "conquer your terrain." My biggest issues that give it a 3 star review is repeat obstacles, 2 7ft walls to ascend and one 4ft one to jump over. Just pick a size, and do it once, and give us 2 different obstacles in place of the repeaters. Also, doing the inclined monkey bars over a pool of water, was unknowingly treacherous. My fiance slipped and fell in, and landed on the ladder used to get out of the pool! It wasn't bolted down to the side and no volunteers were there to see and fix the problem. Everything else was fine, but safety incompetence isn't good. Will likely do it again next year, and will definitely check the pool next time to make sure we can't get hurt by a loose ladder.


May 15, 2017 by Liz S

I only saw 2 photographers on the course, at the finishline and at the end for monkey bars, very disappointing. Few volunteers, many obstacles unmanned. Hoses were not hooked up (we ran the 1 pm) at the end to rinse off. No sanitizer in the porta potties.

May 13, 2017 by Dave G

First and last time. Poorly organized. One of those races where the organizers are looking to minimize their overhead and maximize profits. Obstacles were few and far between. They definately don't look to improve or add to their races.I paid extra for the 10K and no one checked to verify the others. Same medal for the 10K & 5K, cheap white tshirts with a generic logo that can be used in future races, same with the medals. I've run several other races and this was my worse experience.


May 06, 2017 by Kressa Peterson

Wish I could leave zero stars. The cargo net obstacle started falling down in Miami and they had to remove people from it and disallow the obstacle. Not one person ever checked bands to see if the competitive athletes actually finished the obstacles. AND my husband paid for the competitive wave and Terrain has YET to post the times for the competitive wave in Miami. We had signed up for Atlanta and I have tried to contact them multiple times with no answer so I have disputed the charges with our bank. Terrain is dangerous, disorganized, irresponsible and to top it off they have zero customer service. Never again. That fact that they are a qualifying race for OCRWC is truly sad.

May 02, 2017 by danny B

Garbage! So many fees and customer support is THE WORST!!!!

Mar 27, 2017 by Chad Mills

I signed up for this race months in advance and honestly I didn't have high expectations after reading some of the previous reviews about it but I wanted to find out for myself (kinda like movie reviews, never believe them unless you see it) So figured why not it was inexpensive and lets see what they are all about. So I entered the elite wave or competitive however you want to title it as I do every OCR. To my pleasingly surprise this was nothing like a movie critics review who said oh this is not great blah blah blah. So what I'm saying is this race was one of the best kept secrets for those who have not run it. I have run Spartans, Conquer the Gauntlets, Green Beret Challenge, and the list goes on and this race was on par if not better then some of the others. I would compare it to if you took Conquer the Gauntlet and The Warrior Dash and collided them. It had a good amount of strength to endurance ratio mixed in. There were monitors at every obstacle to make sure people did not cheat and actually completed them. Water stations were manned and had plenty of water available. The trails were marked perfectly so there was no confusion where to run. The whole venue was set up great. It was one of the most organized races I have done. If your one of those folks who likes boring starts, boring obstacles, no mud, or staying wet the entire race then join your typical movie critic and live your average life on the other hand if you want an exciting challenging competitive race that does not break your piggy bank to sign up all the way to the day of the race. Jump on the best kept secret in the OCR world!!!!!

Mar 05, 2017 by Alan

I ran the 5k elite heat in Houston. This was my first Terrain Race and first elite heat. I've done other OCRs open heat before.

1) I don't understand the idea of starting in a water tub (especially when it was 48*, but it did make for a good psychological obstacle.

2) On the monkey/hanging ball rig, the rules state you can use 2 lanes. The volunteer watching it yelled at me to only use one lane. Volunteers need to know the rules.

3) According to the website, the 5k competitors were supposed to get prize money, awards, podium time, etc.. They only did it for the 10k racers. I wasn't in contention for the podium but now I'm glad I wasn't because I would've been pissed.

4) No free beer? WTH?

5) The 2017 shirt design could use some work. My kids liked it and it looks like a kid shirt.

6) I will say the kids race was great and my kids liked it a lot.

A good race that's trying to spread out. If they do some tweaking it'll be a lot better. I'd consider doing it again, but they need to take some of the reviews and make some improvements.

1st time racer

Aug 27, 2016 by 1st time racer

This was my first race. I did it to get my daughter out running this summer. We had a lot of fun. I've run 2 1/2 marathons, and a bunch of 5K's. This one seemed very unorganized, but it is my first mud / obstacle race. While we were waiting to start the final obstacle collapsed. Fortunately it looked like nobody was hurt. Because of that I was worried on all of the high obstacles with my daughter. The obstacles needed employees stationed at them, limiting the number of people on them at a time.
***If you take away the collapse and my worry, it was a four star event because of the cost. I am knocking it down to 3 because of the unprofessional, and frankly dangerous conditions. However, if you are safe, ok with just rolling with the puches, and looking for a fun run, this is it. By far the cheapest race I could find, which is why I was able to just go with the flow.

The Ultimate Mud Run, Obstacle Race and Adventure Race Guide , USA 3.4 5.0 30 30 I raced the elite heat and loved it! The obstacles were fun and challenging and loved the mandatory obstacle completion for the elites. I don't really understand the negative revie