F3 Knoxville is hosting their first Obstacle Course Race to benefit Operation Enduring Warrior. The event is on May 19, 2018. It will involve teams of 2 to 8 people racing 2 team members at a time to complete as many laps as possible on a 2 mile 20 obstacle course. There is a 5 hour and a 10 hour race option as well as a kids fun run to kick things off for the day. Go to www.facebook.com/hardshiphillocr For more info or register at www.active.com keywords Hardship Hill.