Size actually matters, and this one is forty feet.

THE HIGHEST POINT ON COURSE AWAITS YOU

Meet Mudderhorn: three stories of vertical net built to test your grip and your trust in basic physics. Standing forty feet high, it sits proudly as Tough Mudder’s tallest obstacle on course. Picture two adult giraffes, three basketball hoops, or five Smart Cars stacked on top of each other. That is what you are scaling, with a direct view straight through the ropes to keep your stomach firmly in your throat the whole way up.

3 THINGS TO KNOW ABOUT MUDDERHORN
 

FORTY FEET OF VERTICAL CLIMB THAT IS LONG AND HARD

Anyone claiming size does not matter has clearly never stood beneath forty feet of stiff, exposed frame. Standing as tall as two adult giraffes or five Smart Cars stacked on top of each other, this massive structure dominates the course and makes standard walls look tiny by comparison. 

EXPECT ZERO PERSONAL SPACE

The netting starts high on purpose, meaning it requires a direct lift to your a** from behind, so leave your personal space issues at the start line. Read our blog to find out why teamwork is essential at Tough Mudder. Thank us later. 

WALL SITS PAY OFF LATER

Training your quad endurance today stops your legs from shaking like leaves when you reach the halfway mark.Trying to pull your entire body weight up three stories of cargo net will blow out your biceps early, so push through your glutes to keep your momentum going. 

THE COURSE IS WAITING...

Gravity always wins in the end, especially when you spend three weeks overthinking a simple climb. Grab your team, lock in your tickets now, and take 25% off 2026 & 2027 events with code "EARNED25" before this discount disappears. 

North America only: This promotion is valid until September 9  2026 @11:59pm PT. The offer is valid on the 2026/7 Tough Mudder 5K, 15K, and Infinity events. Offer is not valid on any of the following: Tough Mudder merchandise, multi-event bundles, race passes, Kids by Spartan, spectators, training products, or World's Toughest Mudder. In order to receive the 25% discount, use code at checkout: EARNED25. Promotion cannot be retroactively applied. Promotion cannot be combined with any other offer.