Welcome to the Newbsanity Last Man Standing OCR Ultra, a grueling challenge where athletes must complete an obstacle loop every hour until only one remains. This endurance test combines both physical and mental toughness, offering a unique take on the backyard ultra concept. The approximately 3-mile loop features a range of obstacles and requires participants to remain on course until they finish each lap. Competitors must start at the designated bell time, and personal aid is not permitted. Runners can accumulate additional mileage even after elimination, but the final winner is determined by who completes the last loop. The race continues until no one can finish a loop, leaving it open-ended for determined participants.