What you need to know before signing up for a Tough Mudder or Spartan race

Want to test your strength and endurance with an obstacle race? Here’s how to train to avoid injury.
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Spartan Race to purchase bankrupt Tough Mudder - The Mountain Times

Everything You Need to Know About Obstacle Racing

SHOULD I WEAR GLOVES FOR A MUD RUN? - KINGS CAMPS AND FITNESS

Spartan Race: Fire, mud and water

Why Are Obstacle-Course Races So Popular? - The Atlantic

Playing Dirty

Obstacle Racing Is Losing Its Electrified Obstacles

What is Tough Mudder's Infinite Hero Honor Challenge? - Tough Mudder

The 12 of the Most Epic Mud Runs in the World

The Hidden Cost Of Extreme Obstacle Races - ABC News

Spartan race looks to acquire Tough Mudder in 2020 - Canadian

7 Tips to Get Through Your First Spartan Race, Learn From My

Spartan Race Coupon - Spartan Race deal and reviews

Tough Mudder » Warrior Dash » Spartan Race

Minnewashta Mud Run makes a mess

Spring Break at the Lake mud run fun – Orange County Register

5 Mud-Season Tips for Trail Runners

Things get messy during Israel's annual mud run

Scouts get muddy at the heart of the New Forest at annual Mud Run