Mark is a 20-year military veteran in the Marines and Army, a two-time World's Toughest Mudder team champion, a Death Race series champion and set the course record that still stands today when he won the 2013 Viaduct 150-Miler in 40 hours and 18 minutes.
Cerus Fitness, located in Fredrick, CO, is owned and operated primarily by CEO and majority shareholder, Chris Johnson, along with his phenomenal Head Trainer...