Tough Mudder Infinity

As Tough Mudder returns to a single, 10+ mile event format in 2024, we will be adjusting some of the Tough Mudder Infinity rules to align with the new direction. Here’s what you need to know:


What’s Changing:
• All Infinity loops will be run on the 10+ mile course path
• Runners will have more time to start laps on the course – with the start line cutoff closing 7.5 hours into the race (and 1.5 hours before course close)
• The minimum achievement to become an official finisher will be two laps (approximately 20 miles) instead of the current 20km (12.4 mile) minimum.

What’s Staying the Same:
• The overall race duration will remain the same – lasting 9 hours from start to course closure
• Obstacles will still be a mix of mandatory and penalty obstacles

What does that mean for the race?
• We expect a narrower spread of total mileage, with more of an emphasis on pace (i.e. more people doing the same number of laps, with the differentiator being time to complete those laps)
• Based on historic results, we expect runners to complete between 2-5 laps. The real question is whether anyone can hit 6.


Stay tuned for additional updates concerning achievement awards and Contender status in 2024.

Infinity racers will take the course at 7:45AM– with first access to fresh mud and fresh obstacles.

All Infinity racers complete a first lap of the 15K course. After they cross the finish line, they can choose to stop at the dedicated quick pit to grab any personal items or nutrition. They’ll then choose to stack on another 15K or 5K lap, and rack up as many laps as possible before the cut off time.

Infinity starts at 7:45AM. The last time to start a 15K lap is 1:45PM. The final time to start a 5K lap is 3:45PM. The course will be cleared at 4:45PM, exactly 9 hours after the start.

Yes. All Infinity racers will have an active timing chip to clock your laps, and on-course timing points will automatically detect whether you’re on a 5k or 15k lap. Lap tracking boards at the finish line will show you where you’re at in comparison to the field.

When you’re racing Infinity, you’re racing against yourself and the clock– with the aid of 300 fellow Infinity racers and 6,000 other Saturday Mudders. There are no winners and losers, but you’ll earn exclusive achievements once you hit 30km, with new award levels for every additional 5km. Elite athletes fast enough to finish 60km in the allotted time will receive an exclusive gold medallion (not to mention the bragging rights).

You’re running the same 15k and 5k courses that other Saturday Mudders are on. With your Infinity bib, you’ll have access to dedicated lanes to ensure you don’t need to wait– but unlike an overnight Toughest event, you’ll have 6,000 teammates to help you on your journey.

Yes – just like Toughest and World’s Toughest, obstacle completion is either mandatory or requires the completion of a penalty. At Infinity, penalties are completed at the Race Center between laps.

Of course. Infinity is the first step towards earning the Holy Grail. Add in finishes at Toughest and World’s Toughest and you’ll have earned yourself the ultimate bragging rights.