Get ready for an event that is about friends and family, mud and obstacles!
We have three distances, 5k, 10k and 20k, 20+ obstacles and kids as young as 9 can race!
The cool pine forests surrounding Flagstaff make the perfect spot for a mud run. Race in Arizona in July where temperatures are still in the 70s!
Test your strength, stamina and skills as you conquer dozens of obstacles in the cool shade while the rest of Arizona is sweltering hot. Make a weekend in Flagstaff to enjoy the best summer temps Arizona has to offer as you race in tons of mud in monsoon season.Signup For Flagstaff
On October 4 tons of athletes will be let loose on the movie sets and desert trails surrounding Old Tucson Studios.
Crawl over obstacles right where The Three Amigos and many more westerns were filmed. Finish covered in mud with the beautiful Tucson mountains behind you.Signup For Tucson
Get ready for another Phoenix mud run where YOU’LL conquer 25+ obstacles, river crossings, challenging obstacles, and the best mud pits in Phoenix!
Bring your friends to play in mud at the finish at this amazing Phoenix mud run! You’ll run through a river (yes, in Phoenix!), slide down the longest mud slides, and have plenty of obstacles to test your strength.Signup For Phoenix Fall
The first five episodes of OCR Warrior were filmed at the Terrain Phoenix Mud Run and you can watch them each week here! Who’s gonna be the next OCR Warrior?
terrain challenges you both physically and mentally with over 20 obstacles! Choose YOUR course of 3, 5+, or 10+ miles. Party at the finish line with friends, family, mud and views of the obstacles you conquered. You’ll be proud when you finish your race with us. Make terrain YOUR race.
You’ll sweat. You’ll get dirty. You and your friends will have the time of your life.
I run a lot of obstacle races but this was my first Terrain. You put on a great event and I cant wait until you come back to Phoenix.Jason F
First let me say awesome job! I’ve done tough mudder and this was a fun short version of what they have. Definitely coming back next year.Josh D
I just did the Warrior Dash 2 weeks ago and have to say that the Terrain course blew that away.Trever G
If you can jog 3 miles and do a couple pushups and sit ups, you can do our 5k course! You’ll be ready to slosh in the mud, jump over 6 foot high walls, 12 foot high rope walls, and 16 foot high cargo nets.
If that sounds too easy, get ready for a tougher course with 5-7 miles and over 20 obstacles to really challenge you.
Want over 10 miles and tough? Run the long course twice and the fastest male and female each win a $100 cash prize or free shoes!
All athletes will run a sweet course, play on some of the best obstacles imaginable, and trudge through some sick mud. You’ll also get:
Instead of branding our company with an angry connotation or a themed race such as a pirates, warriors, soldiers, etc., our athletes are proud to conquer terrain Mud Runs as themselves. You’ll be proud of your OWN accomplishments of navigating a challenging and fun mud run course. terrain is about your own accomplishments. terrain is about you.
You won’t find gladiators forcing you to take the plunge into a “scary” swamp. We know that you don’t have to pretend to be something else for the day to reach your goals and be your own hero.
Instead, you’ll take that leap as you, not as a themed character. You’ll find that you are more than a number on your forehead or an identically dressed spartan. You’re part of the terrain family.
Throughout the race you’ll be challenged by obstacles so large they take heavy machinery to construct. On the other side of them you’ll relish in your glory of conquering them as yourself.
We all have our own obstacles to tackle and completing your terrain mud run will be an awesome way to overcome them. It’s a course we build and we call it terrain. But in the end, it’s your race, it’s your terrain.
Get all the answers so you’ll be ahead of the competition.
Nope, you can race solo, but we have fantastic incentives to race on a team of 5 or more.
After paying for your race entry, you’ll choose what wave you want to race in. Waves usually start at 9am and go every 15 minutes. Sign up and choose your wave early, they fill up fast.
Arrive 1 hour before your wave starts to allow time to park, check-in (ID required!), drop off your clean clothes at gear check, and line up at the start chute.
Yep! Buy 5+ entries and each person saves $7! Buy 3+ entries and each person saves $5!
View the whole page of FAQs.
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