ARE YOU TOUGH ENOUGH?
Our Endurance Series ties our three most unforgiving events into the ultimate yearlong test of your toughness and grit.
Run as many laps of our legendary obstacle courses as you can in 8, 12, or 24 hours (with wickedly inventive penalties) to discover just how far you can bend your boundaries.
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ENDURANCE SERIES EVENTS
TOUGH MUDDER INFINITY
Stack as many laps as your legs will allow
TIME: 8 hours
LAP DISTANCE: 5K & 15K
RECORD: 85K
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EUROPE’S TOUGHEST INFINITY
Nonstop chaos all day long, from sunrise to sunset
TIME: 12 hours
LAP DISTANCE: 5K and 15K
WORLD’S TOUGHEST MUDDER
THE TOUGHEST EVENT ON THE PLANET. PERIOD.
TIME: 24 hours
LAP DISTANCE: 5 Miles
RECORD: 115 Miles
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TIE IT ALL TOGETHER
HOLY GRAIL
Each season we award the Holy Grail to every Mudder that manages to finish Tough Mudder Infinity, Europe’s Toughest Infinity, and World’s Toughest Mudder within a single year.
Up to the challenge? Follow along and get stuck in with our Holy Grail Hub.
FAQ
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WHAT ARE THE ENDURANCE SERIES FORMATS?
There are three different events formats in the Endurance Series. In order of shortest to longest, they are Tough Mudder Infinity, Europe’s Toughest Infinity, and World’s Toughest Mudder.
HOW LONG ARE ENDURANCE SERIES EVENTS
Endurance Series events don’t have a fixed distance — they have a fixed time limit. The challenge is simple: complete as many laps as you can before time runs out. Tough Mudder Infinity events are 8 hours long, beginning Saturday morning. Europe’s Toughest Infinity is 12 hours, beginning Saturday morning at London West. World’s Toughest Mudder is a full 24-hours, beginning on Saturday morning and ending on Sunday.
ARE THE ENDURANCE SERIES EVENTS COMPETITIVE?
Sort of. Unlike most Tough Mudder events, the events in the Endurance Series have timing chips and leaderboards; however, the expectation is that the athletes will uphold the Tough Mudder values, including helping those around them, These events are ultimately about seeing what you’re capable of, not leaving other athletes in the mud.
HOW OLD DO YOU HAVE TO BE TO TAKE PART IN EUROPE’S TOUGHEST INFINITY
18 years old (as of event day)
WHAT IS THE HOLY GRAIL?
The Holy Grail is your prize for successfully finishing one of each Endurance Series event in the same calendar year – including Tough Mudder Infinity, Europe’s Toughest Infinity, and World’s Toughest Mudder.
HOW DO I EARN A SPOT ON THE HOLY GRAIL LEADERBOARD?
We keep a running tally of all mileage completed at Tough Mudder Infinity, Europe’s Toughest Infinity, and World’s Toughest Mudder within a calendar year. The leaderboard is updated a few days after each Endurance Series event to reflect the current standings. At the end of the year, the winners will earn a Season Pass Plus and a custom embroidered jacket.
