Weekend Events
Most Popular
8-10 Miles, 25 Obstacles, Untimed
CHOOSE YOUR DATE
Price
$__ / EA.
+ tax & fees
Register
3 Miles, 13 Obstacles, Untimed
CHOOSE YOUR DATE
Price
$__ / EA.
+ tax & fees
Register
8-10 Miles, Timed Wave
Saturday, AUGUST 8, 2020
Price
$120 / EA.
+ tax & fees
Register
PRICES RISE ON Apr 30th
Tier 1
$120
Final Tier
$144
NOW AVAILABLE
FLEX TICKETS
NOW AVAILABLE
FLEX TICKETS
SET YOUR GOAL: Book a Flex Ticket for any of our formats and choose which event you go to right up until the day before the event, whether it’s this year or next. The perfect way to crush and excuse.
SEE ALL FLEX TICKETS
Why You Should Do a Tough Mudder
Take the Leap
Why You Should Do a Tough Mudder
Take the Leap
You’re capable of more, and our obstacle courses are designed to get you outside your comfort zone, while also making it really f-ing fun. No matter what your fitness level, we have the course for you. So what are you waiting for?
Tough Mudder Obstacle Innovation
The Tough Mudder Difference
Obstacle Innovation
The Tough Mudder Difference
Obstacle Innovation
For 10 years Tough Mudder’s Innovation Team of engineers have pushed the boundaries to build the most intense obstacle challenges, and this year we are back, announcing all-new obstacles. Coming Soon. Buckle up.
See All Obstacles
Teams that Play Together, Stay Together
Team Fun
Everything is better as a team – groups of 10+ can upgrade their day and take the stress out of organizing. Our dedicated reps can build a customized day for your corporate team, gym group or bachelorette party to make your experience amazing.
Learn More
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Celebrate With Us
Mudder Village Festival
Grab a drink at the bar, kick back with live entertainment, play lawn games, test your toughness with epic fitness challenges, and refuel with authentic local eats and treats.
Stuff You’ll Get
Swag Alert
Every Tough Mudder participant finisher receives a performance t-shirt, a celebratory headband and a beer, because you’ve earned it. So go on and get it.
Never Run Alone
Find Your Tribe
Can’t get your friends to commit? Join a Solo Runner’s Wave, where you can meet other lone wolves, form a muddy pack and get goal-crushing. After you register, follow the instructions to “Join a Team” and search for “Solo Runners”.
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Get Training
Free Training Plans
Get Training
Free Training Plans
No matter your starting point, we’ve got the tools you need to get start-line ready and crush insane obstacles with ease.
Start Training
VIP GROUP PACKAGES
Teams of 10+ can upgrade their event with a customized group experience.
Learn More
Volunteer
Join one of the most important teams at Tough Mudder and get discounts on your event.
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Run for a Cause
Run a Tough Mudder for free while you raise money for a great cause.
Learn More
Other Ways To Participate
Not ready to take the (arctic) plunge yet, or want to run for a cause? Join the Tough Mudder community through one of these other ways to get involved.
Spectator & Mudder Village Pass
Cheer on your Mudders and enjoy our action-packed Mudder Village Festival. The experience includes live entertainment, authentic local eats, lawn games and much much more. Get your Mudder Village Passes for only $10 (50% off event day pricing).
Buy Now
Mini Mudder – Kids 5-12 Years Old
Mini Mudder is an obstacle course mud run comprised of 1/4 mile laps designed specifically for adventure-seeking kids. The course gives kids the chance to work as a team, get muddy, and experience the thrill of adventure.

Kids must be between the ages of 5 – 12 and at least 42″ tall to participate.

Mini Mudders must be accompanied by an adult or guardian with a valid Mudder Village Festival pass which can be purchased online or on-site. There is also a fee for parking on the day of the event.
Sign up today
Charity Family
Manage a charity? Are you looking to gain more participants to assist in fundraising? Look no further, Tough Mudder is here to help.

If you are already registered but want to raise money for a charity, you can find a list of participating charities. Visit our charity page to find out more.
Learn More
Mudder Passes
TWO-PACK PASS
Buy a Tough Mudder Two-Pack Pass and get access to any two North American events of your choice (savings of up to 50% off event day pricing).

SEASON PASS
Good for every single 2020 North America Tough Mudder 5K and Tough Mudder Classic (as low as $21 per event). Buy now, choose later.
Learn More
Location
  miles away
Venue Address
Sterling Ranch
8220 Piney River Avenue, Littleton, CO 80125
United States
Travel Time
Denver: 40 minutes
Hotels Nearby
Traveling to the event? Check out offers on local hotels
See Local Hotel Deals
Colorado August 8 & 9, 2020
Other Events
VIEW ALL EVENTS
Chicago August 22 & 23, 2020
Toughest Mudder Chicago August 22 & 23, 2020
Dallas/Ft. Worth October 31 & November 1, 2020
Socal November 14 & 15, 2020
Event Day Information
A guide to everything you need to know to prepare in advance for your next muddy adventure. Find details on what to bring, what to wear and purchasing ticket add-ons.
Top FAQs
Here are some of our top FAQs. Don’t see what you are looking for? Visit our full list of questions to find your answer.
See All FAQs
Start Times & What To Bring
START TIMES
Please arrive 45 minutes before your assigned start time to ensure you can park, check in, drop your bag, and get to the Warm Up Zone 20 minutes before your start time. START TIMES WILL BE STRICTLY ENFORCED.

PLEASE NOTE: Due to high demand, some participants have been assigned a different start time than requested. Please do not contact us directly as we will not be able to accommodate changes.

WHAT TO BRING
1. A VALID PHOTO ID*
Don’t forget it in your car.

2. ACTIVE.COM PARTICIPANT TICKET*
Print it or have it ready on your phone. Registration confirmation is sent from [email protected] or you can login to Active.com to access your ticket.

3. CARD (PREFERRED) OR CASH
For bag drop, food, and (more) beer.

*Items 1 and 2 are necessary to enter event.

WHAT TO WEAR
At all events, we suggest wearing normal running shoes – spikes and cleats are strictly prohibited. Dress in comfortable clothing (or a costume that will make you more stylish on course) and bring dry clothing to change into once you’re done.
If it’s cold, gloves are recommended. If it’s hot, sunscreen is a necessity. No matter what the weather is, make sure to come hydrated and take advantage of water stations on course.

BAG DROP
If you don’t plan on traveling home muddy, you’ll probably want to bring a change of clothes. Stop by the bag drop tent to store your belongings while you’re on course. $5 online or $10 onsite – Card (preferred) or Cash.
Link to Active
PARKING AND BAG DROP
PARKING
General Parking – Save time and money by purchasing in advance. | $15 online or $20 onsite

Handicapped Parking is available both days. Ensure handicapped pass is visible.

BAG DROP
$5 online or $10 onsite – Save time and money by purchasing in advance.

HERE’S HOW TO PURCHASE:
1. Log into MYEVENTS.ACTIVE.COM
2. Click “Purchase Merchandise”
3. Having trouble? Follow THESE INSTRUCTIONS to purchase your parking pass
Join or Create A Team & Solo Runner
Want to run the course at the same time as your friends and family? Make sure to create your team no later than two weeks before the event (two Monday’s prior). If you do not create or join a team by this date, we will not be able to guarantee the same start time for you and your teammates.

Need help on how to create or join a team? Complete your account setup HERE. Then follow these instructions to CREATE/JOIN A TEAM or MANAGE YOUR TEAM.

RUNNING AONE? JOIN OUR TEAM
Running Alone? We’ve got your back. In 2020 all events will have designated Solo Runner Waves so you can meet other lone wolves, form a muddy pack and get goal-crushing.

HERE’S HOW TO JOIN:
1. Complete your account setup HERE. Then follow these instructions to JOIN A TEAM POST-REGISTRATION.
2. Search for team name Solo Runners
3. Join the team and have a blast with your new Mudder teammates.
Local Sponsors
Interested in being a local sponsor? We’d love to get in touch with you. Send us an inquiry [email protected] for more information.