This matches the highest discount they've offered so far this year.
Brad's Deals Editor Candace,
Ending tonight, take 25% off a Tough Mudder participation fee when you enter the coupon code FIT25 at checkout at Tough Mudder. This matches the highest discount they've offered so far this year. This discount is valid on the Tough Mudder Half, Tough Mudder Full, and Tough Mudder 5K events. Events range from a 5-10 mile course with challenging obstacles, such as a Berlin wall, mud pit, bear crawls under barb wire, and more. Each team member will receive a T-shirt, white finisher headband, and ice cold beer at the end. Event options vary by state, with prices starting at $119 before the discount. They also have a training guide available for free on their site. There is no sales tax.