September 19 & 20, 2020



Event Overview

3Miles 13Obstacles
10Miles 20Obstacles
3Miles 10Obstacles
A New Breed of 5K

Tough Mudder 5K Seattle is invading the legendary Palmer Coking Coal Company yet again, so strap for an all-out epic bash you don't wanna miss. Just 40 minutes from Seattle, you and your crew are gonna roll over open fields, down deep gravel pits, through extensive wooded trails, scramble to the top of a 100-year old coal slag and get down at a shindig bigger, and bolder than Mt Rainier itself.

3 Miles, 13 Iconic Tough Mudder Obstacles

Tough Mudder 5K Seattle is 3 miles of best-in-class obstacles, designed for intense teamwork and fun. None does it better than our most iconic obstacle, Everest 2.0, a 13' quarterpipe with curved top that requires real teamwork to conquer. Bust through the finish line and the party keeps going. Grab a frosty cold beer, listen to music, hang with your new best friends from course, and soak in that sweet first taste of Tough Mudder.

Seattle 2020

Saturday, September 19, 2020
Sunday, September 20, 2020

Tough Mudder 5K Seattle Video

Stuff you'll get

Action Photos Performance Finisher T-Shirt Green Finisher Headband Ice Cold Beer

Other ways to participate

Join the Tough Mudder community, there's a spot for you here.


Step 1: Crew up and save big on a one of a kind experience.
Step 2: Enjoy epic group chats All. Year. Long.

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Volunteer and join 'probably the best team on the planet'.

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Run For a Cause

Ever thought about running a Tough Mudder for free? Find out how you can join a team to take on a Tough Mudder and fundraise for a great cause.

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Tough Mudder's Charity Family

Manage a charity? Are you looking to gain more participants to assist in fundraising? Look no future, Tough Mudder is here to help.

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Mudder Passes

Don't want to stop at just one event? Get more Mudder action and big savings when you buy a Two-Pack Pass or Season Pass.

Two-Pack Pass

Good for any two Tough Mudder 5K or Tough Mudder Classic events anywhere across North America.

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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.

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Palmer Coking Coal Company
31615 Lake Sawyer Rd. SE
Black Diamond , WA , 98010
United States
Washington US
Travel Time

Seattle: 45 minutes
Tacoma: 40 minutes

Tough Mudder 5K Event Day