Harvey Lewis participated in the demanding Big Dog's Backyard Ultra, running 462 miles in 111 hours without proper rest, setting a US national record and breaking two ribs in the process. The ultra consists of completing a 4.16 mile loop every hour until the runner quits or fails to finish in time, totaling 100 miles per day with no opportunity for rest. Despite his injury, Harvey completed an incredible 111 laps, placing him among an elite few who have achieved this feat.

Harvey's success adds to his impressive ultra running history, which includes wins at events like the Badwater 135 mile race. He attributes his endurance and recovery to his vegetarian diet since 1996 and transition to a vegan diet in 2016. Harvey believes that going vegan has the power to improve quality of life and reduce health risks for individuals and can help revolutionize a nation at a macro level.