Yesterday, Tough Mudder teased a new event for the obstacle course racing series. Mud Run Guide got a sneak peak at the new event in advance of the April 1st announcement. Move over Tougher Mudder, Toughest Mudder, and World's Toughest Mudder there is a new event in town for April 1. Get ready for Puppy Mudder from Tough Mudder presented by Nulo Pet Food.