The full schedule for the Ultra4 Racing 2019 King of the Hammers in Johnson Valley, CA has been released. Considered by many to the the toughest one day race in the world, KOH starts off the week with the 4900

Course lengths for the 2019 Ultra4 King of the Hammers in Johnson Valley, CA have been announced. What is considered by many to be the toughest one day endurance race on the planet is being made even tougher by making