Tough Mudder is offering a new 15 percent discount code for U.S.-based 2017 Tough Mudder and new Tough Mudder Half events.
The code, which expires Feb. 28, is ToughMudderNewYear17.
Race organizers also launched a series of free training videos and three-month downloadable workout guides at ToughMudder.com/Physical-Training.
The full courses run 10 to 12 miles and include 20 obstacles; half courses extend 5 miles and include 13 obstacles.
Costs for both races will go up on Thursday, according to the Tough Mudder website.