The Arrowhead 135 is recognized as one of the 50 toughest races in the world. The 135-mile endurance race is a “human powered ultra-marathon” taking place in the coldest part of winter. Minnesota is also bracing for its coldest temperatures in nearly 25 years.
Race director Ken Krueger has run the race nine times himself and calls it a life-changing experience.
“It pushes you to your limits,” Krueger said. “You find out what your limits are and what you are capable of. About 70 percent of our racers are returning racers. We call them veterans. So about 70 percent come back, many, probably over ten times have been here over 15 years, so we have many people that come here year after year after year.”