27 - 28 June 2026
World's Toughest Mudder
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Gallery Image: World's Toughest Mudder
Gallery Image: World's Toughest Mudder
Gallery Image: World's Toughest Mudder
Gallery Image: World's Toughest Mudder
Gallery Image: World's Toughest Mudder
27 - 28 June 2026
World's Toughest Mudder
Weekend Events
Individual Participant
SATURDAY

FROM

£324.53
Register
Team Relay
SATURDAY

FROM

£324.53
Register
PIT CREW / SPECTATOR
SATURDAY

FROM

£29.04
Register
BRUNCH
MONDAY

FROM

£45.36
Register

THE VENUE

In 2026, World’s Toughest Mudder returns to the formidable grounds of Belvoir Castle, where beauty is a trap and the course shows no mercy. For 24 hours, you’ll take on relentless 5-mile loops packed with brutal climbs, unforgiving terrain, and a constantly evolving gauntlet of new obstacles, reimagined classics, and cruel surprises designed to break even the toughest athletes. You'll be: against the elements; against the course; against yourself. Under the looming presence of the castle, you’ll dig deeper, push further, and discover just how far you’re willing to go. Belvoir will test your limits. The question is, will you outlast it?

Belvoir Castle
Grantham, Lincolnshire, NG32 1PE, UK

TOP-TIER TOUGH

World’s Toughest Mudder is the most extreme, imposing, pulse-pounding, heart-stopping 24-hour obstacle course challenge on the planet.

OBSTACLES
Well Swung

Jump high, hang low, and let it all swing out on Tough Mudder’s take on the trapeze.

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WTM: NOTHING LIKE IT Play Button

WHAT YOU EARN

(IF YOU CROSS THE FINISH LINE)

Event Bib

Every athlete receives participant bib to rock during (and after) the event. A true memento.

Medals

This prestigious medal is reserved for athletes that are top-tier tough. Those who dare to push beyond and shatter their limits, facing 24 hours of relentless obstacles and intense competition. Eager to earn your own? Sign up now to join the ranks of endurance’s elite.
And as if 24 hours of absolutely mayhem wasn’t tough enough, interlock this hard-earned hardware with the Infinity and Toughest Mudder medals to reveal the Holy Grail — the ultimate endurance achievement.

Finisher Headband

Just like every Tough Mudder event, you earn the right to rep a sweet finisher Headband.

WTM Finisher Shirt

Whether you’re gunning for the podium or the top of your age group, prizes are on the line for qualified Contenders at WTM.

Adaptive Athletes
Tough Mudder has always had a clear vision of creating an environment for athletes to work together to overcome fears and challenges. Our Adaptive Athlete Programme connects athletes and course guides to conquer each obstacle course in a way that best suits them.
Learn More
TOUGHER TOGETHER
24 hours is a long time, but you don’t have to go about this challenge alone. Take advantage of our team relay options – allowing you to tackle the WTM course in teams of up to 4 people.

Recruitment starts now, and no one is off limits. Fire up the group chat and rope in everyone from your closest friends and family to your best friend at work, or even that one Mudder you made friends with three years ago on Mud Mile.
BUILD YOUR TEAM
Adaptive Athletes
Tough Mudder has always had a clear vision of creating an environment for athletes to work together to overcome fears and challenges. Our Adaptive Athlete Programme connects athletes and course guides to conquer each obstacle course in a way that best suits them.
Learn More
TOUGHER TOGETHER
24 hours is a long time, but you don’t have to go about this challenge alone. Take advantage of our team relay options – allowing you to tackle the WTM course in teams of up to 4 people.

Recruitment starts now, and no one is off limits. Fire up the group chat and rope in everyone from your closest friends and family to your best friend at work, or even that one Mudder you made friends with three years ago on Mud Mile.
BUILD YOUR TEAM
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PREPARE FOR THE PIT
PREPARE FOR THE PIT
We’re not just leaving you alone in the dark.

The World’s Toughest Mudder atmosphere is unlike anything you’ve ever experienced before. The pit is complete with reserved campsites, food trucks, music, event announcers, and a full race center – making it the perfect place to pull off the ultimate all-nighter. We have something for every racer (and their mighty pit crew recruits).
SECURE YOUR PIT CREW / SPECTATOR PASS
BREAKFAST OF CHAMPIONS
Back for 2026 and served with a side of smug satisfaction, our post-event brunch is open to both participants and pit crew. It’s your chance to refuel, swap war stories, and witness the glory of the awards ceremony, because nothing says “champion” like a trophy in one hand and a bacon sandwich in the other.

Spaces are limited, and once they’re gone, that’s it. Don’t be the one stuck outside, nose pressed to the glass, mourning lost bacon.
LET’s BRUNCH
PREPARE FOR THE PIT
PREPARE FOR THE PIT
We’re not just leaving you alone in the dark.

The World’s Toughest Mudder atmosphere is unlike anything you’ve ever experienced before. The pit is complete with reserved campsites, food trucks, music, event announcers, and a full race center – making it the perfect place to pull off the ultimate all-nighter. We have something for every racer (and their mighty pit crew recruits).
SECURE YOUR PIT CREW / SPECTATOR PASS
BREAKFAST OF CHAMPIONS
Back for 2026 and served with a side of smug satisfaction, our post-event brunch is open to both participants and pit crew. It’s your chance to refuel, swap war stories, and witness the glory of the awards ceremony, because nothing says “champion” like a trophy in one hand and a bacon sandwich in the other.

Spaces are limited, and once they’re gone, that’s it. Don’t be the one stuck outside, nose pressed to the glass, mourning lost bacon.
LET’s BRUNCH
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ALL THINGS WTM
EVENT INFO
Find out everything about WORLD’S TOUGHEST MUDDER.
Event Info
HOLY GRAIL
The ultimate Tough Mudder prize is waiting for the most intrepid Mudders. Complete each event in the Endurance Series, culminating in a trip to World’s Toughest Mudder to earn yourself a reward surpassed only by it’s bragging rights: The Holy Grail.
SEE CALENDAR
WTM Community Group
JOIN THE COMMUNITY
Contender Status
Qualifying for contender status.
Learn more
Rules

Coming Soon.